Construction Review May/June 2023

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May-June 2023, Vol 34 No.3 May-June 2023, Vol 34 No.3

The $500Bn dollar NEOM Project

A futuristic hub in the Arabian desert

Bolts & screws

Solar panel installation

Generator maintenance

Types of air compressors

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MANAGING EDITOR

Robert Barnes

DEPUTY MANAGING EDITOR

Francis Makari

EDITOR - in - CHIEF

Dennis Ayemba

COUNTRY EDITORS

Uganda - Betty Nabakooza

Nigeria - Boladale Ademiju

South Africa - Jimmy Swira

WRITERS, Pascal Musungu, Anita Anyango, Patrick Mulyungi

WEB & GRAPHIC DESIGN

Gerald Oswald

Sales and Marketing Manager

Faith Mburu

ADVERTISING

Kenya: William Mutama, Lilian Khavosa, Joyce Ndamaiyu, Wendy Kinya

South Africa: Thuli Nkosi, Winnie Sentabire, Angeline Ntobeng,

Uganda: Nobert Turiyo, Selina Salumah Namuli

Botswana: Dickson Manyudza, Gerald Mazikana

Ethiopia: Haimanot Tesfaye, Ruth Girma

Tanzania: Tom Kiage

Malawi: Anderson Fumulani

Ghana: Samuel Hinneh, Caleb Donne Hadjah

Zambia: Susan Kandeke

Zimbabwe: Chiedza Chimombe

Rwanda: Collison Lore

Nigeria: Seni Bello

China:Weng Jie

The editor accepts letters and manuscripts for publication from readers all over the world. Include your name and address as a sign of good faith although you may request your name to be withheld from publication. We reserve the right to edit any material submitted .

Send your letters to: info@constructionreviewonline.com

Construction Review is published eleven times a year and is circulated to members of relevant associations, governmental bodies and other personnel in the building and construction industry as well as suppliers of equipment, materials and services in Africa, the Middle and Far East. The editor welcomes articles and photographs for consideration. Material may not be reproduced without prior permission from the publisher. The publisher does not accept responsibility for the accuracy or authenticity of advertisements or contributions contained in the journal. Views expressed by contributors are not necessarily those of the publisher.

© All rights reserved.

cover Story

Published by Group Africa Publishing Ltd

Uganda Agent Projects Unusual Uganda Ltd.

Jemba Plaza, Luwum St.

Kampala,

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Uganda Tel: +256 776 883181 bettynnk@gmail.com South Africa Agent Mining and Construction News Network 14 Ballyclare Drive, Bryanston, Sandton +27(0)11 875 4328, info@mcnnetwork.co.za Ethiopia Agent Haymi Advertising Services 22 Mazoria, Genet Bldg 4th Flr P.O. Box 1316 - 1110 Addis Ababa Tel: +251 118 955 855, Cell: +251 930 099 152 Email: ethiopia@groupafricapublishing.com WRITERS
ADVERTISING
Arnold
Oduor Sales and Marketing Manager Ken Okore Kenya: William Mutama, Lilian Khavosa, Fred Okoth
Jie Ehtiopia's Grand Renaissance Dam forth filling 6 Phase 2 of Tema Port Expansion Project 8 Greenville Gardens 12 30 years of interior design by Planning Interiors Ltd 16 Triad Architects marks 60 years 22 When to use bolts instead of screws 27 4 types of air compressors 29 Factors to consider when buying a water pump 31 Proper diesel generator maintenance 33 Solar Panel installation and maintenance 35 REGULARS Corporate News 4 Events 5 cov ER ST o R y: NEOM Project 10
South Africa: Angeline Ntobeng, Shephard Mthethwa, Jacqui Nyangabyaki, Tshego Mokonyama and Thabiso Shosha
business and
NEOM
brainchild
Highness
man, it encompasses Saudi Arabia’s plans to move away from an oil-based economy May-June 2023, Vol 34 No.3 May-June 2023, Vol 34 No.3 Head Office and for all enquiries: P.O. Box 10109 Nairobi 00100 Kenya, Tel: +254 722525326 +254-208000307 Email: info@groupafricapublishing. com
The $500 billion
tourism devel opment The
is the
of His
Crown Prince Mohammed Bin Sal

GERD forth filling underway

Ethiopia is preparing to launch the fourth filling of its mega-dam reservoir on the Blue Nile. The massive $4.2 billion Grand Ethiopian Renaissance Dam (GERD) has been at the centre of a regional dispute ever since Ethiopia broke ground on the project in 2011

Planning Interiors Limited (PIL) at 30

In Kenya, interior design began emerging as a distinct trade just over three decades ago. One firm that has been there since the beginning and witnessed the evolution is Planning Interiors Limited (PIL). The Nairobi-based company is this year celebrating 30 years since its founding.

Solar panel installation and maintenance

The most common location for the installation of solar PV panels is the roof. Most roofs typically have the desired specifications for the installation, so that panels get the maximum sunlight

Tel: +254 20 2679808

E-mail: rwanda@constructionreviewonline.com

Ghana Agent

Image Consortium

1st Floor, The Ecobank Building, Tesano. Tel: 233(0)30 223 2728 I 233(0)274807127 I

+233(0)206299159

Fax: 233(0)24 882 8286

Email: ghana@groupafricapublishing.com, Calebhadjah@gmail.com

Kenya Agent

Northwest Ventures Ltd

P.O. Box 16414 - 00100

G.P.O

Nairobi, Kenya

Email: kenya@constructionreviewonline.com, info@northwest.or.ke

Nigeria Agent Rahma Associates

B23/24, Aishetu Emoewa Plaza, 196, Iju Water Works Road, Ifako Ijaye Lga,Agege, Lagos. Tel: 234-1-7347860

Email: nigeria@constructionreviewonline.com

Rwanda Agent

Kolline & Hemed Inc., B.P. 3328, Kigali, Rwanda

Zambia Agent

Dayflex Limited, Dedan Kimathi Road, Lusaka, Zambia.

Email: zambia@constructionreviewonline.com

Tanzania Agent:

Group Africa Publishing Ltd

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Dar-es-salaam

May/June 2023 Volume 34 No.3
TENT
35
6
16

New Cat® 995 Wheel Loader offers more payload and performance

Trimble ‘s partnership with Responsible Steel to advance sustainability efforts in steel industry

TRMB), a leading digital construction solutions provider in the Middle East, recently partnered with ResponsibleSteel, an independent and non-profit organisation which represents the steel industry's first global multi-stakeholder standard and certification initiative. Globally, Trimble is the first Building Information Modelling (BIM) software technology provider to join the ResponsibleSteel initiative. This partnership is part of Trimble's ongoing efforts to revolutionise the construction industry with innovative technology solutions, while adhering to their sustainability targets.

Building on the success of the 994K, the new Cat® 995 Wheel Loader features up to 19% increased productivity than the previous model with its higher rated payload and 6% increase in hydraulic force with equal hydraulic cycle time. This new loader delivers up to 13% lower hourly fuel consumption and offers up to an additional 8% efficiency gain when operating in Enhanced Eco Mode compared to throttle lock mode. It is also up to 19% more efficient than the 994K in equal comparisons of throttle lock operation.

Elevated comfort and visibility

The redesigned next generation operator environment for the new 995 has 50% more legroom and boasts features that improve operator confidence while reducing fatigue. Its pressurized cab reduces vibration feedback, lowers sound levels and includes automatic temperature control. Providing shift-long comfort, its new electrohydraulic speedsensing steering with force feedback automatically stiffens when traveling at higher speeds and softens as speed decreases to boost operator confidence.

Confidence-boosting technology

Integrated with electronics, the new Cat 995 Wheel Loader offers flexible levels of information and technologies for a smart machine and more informed operator, maximizing the productivity of both. Standard tip up prevention technology avoids unnecessary stress on the drivetrain and structural components by delivering full breakout forces while preventing the back tires from significantly lifting off the ground.

Trimble has consistently advanced its efforts to promote sustainability across its operations. The company received approval for its emissions reduction targets in 2022 from the Science Based Targets initiative (SBTi), a coalition of the CDP, the United Nations Global Compact, the World Resources Institute, and the World Wide Fund for Nature, thereby joining a growing number of companies taking immediate action on climate change. Trimble has also teamed up with other companies and climate leaders for the ‘Business Ambition for 1.5°C campaign,’ the ‘We Mean Business Coalition,’ and the ‘Race to Zero’ campaign.

As one of the major industrial producers of CO2, the steel sector is adopting an industry-wide strategy to ensure that steel is responsibly sourced and produced.

Grupel to attend Africa Energy Forum 2023 and FILDA

Keeping up with its culture of proximity to customers and markets, Grupel is expected to attend two important events in Africa. The Portuguese manufacturer and seller of gensets and electric engineering projects is set to participate in both the Africa Energy Forum 2023 (Kenya, June 20th to 23rd) and FILDA (Angola, July 18th to 22nd).

With an experience of more than 45 years providing energy solutions for numerous applications, Grupel has been working in Africa for around the last 20. The company’s presence in the continent started when their power generators were chosen to support the energy needs of the first telecommunications projects in the PALOP countries. As of

today, Grupel has provided solutions for many other sectors, like water treatment facilities, power plants or mining sites..

An added value proposition

Complying with international quality standards, including ISO9011, ISO14001 and CE-marking, Grupel’s virtue is recognized in more than 70 countries around the world. This comes mainly from the proven quality of Grupel’s products’ components, supplied by renowned brands, including its own. Furthermore, another one of the brand’s key values is its focus on the customer, as Grupel provides tailormade solutions adjusted to the most demanding requirements from clients and site conditions.

Innovation and Product development

In addition to offering customized and reliable solutions to meet specific energy needs, Grupel is working on the generation of renewable energy, with the development of hybrid systems of low-emission generators with solar panels, wind turbines and BESS battery banks. Furthermore, the company is increasingly investing in the use of cleaner fuels, such as biofuels and natural gas, making its operations more sustainable..

4 CR | May/June 2023 www.constructionreviewonline.com CORPORATE NEWS

Angola Oil & Gas 2023 conference

Energy Capital & Power, in partnership with the Angolan Ministry of Mineral Resources and Petroleum, will host the Angola Oil & Gas 2023 conference this September to showcase investment opportunities within the country’s burgeoning energy industry.

Having recently been anointed sub-Saharan Africa’s largest oil producer and boasting confirmed reserves of 9 billion barrels of oil and 11 trillion cubic feet of natural gas, the southern African country hosts some of the world’s foremost oil and gas companies, including supermajors TotalEnergies, Chevron, ExxonMobil, bp and Eni. Angola’s current output is approximately 1.37 million barrels of oil per day (bpd) and 17,904.5 million cubic feet of natural gas.

As such, the country’s resource potential is high, and the country’s Government has sought to develop an enabling environment for its oil and gas industry while incentivizing investment into the sector through a robust series of regulatory reforms, infrastructure developments, and exploration strategies.

Oman Home and Building Expo 2023

We are pleased to invite you to participate at the Home and Building Expo, co-located with Architecture and Urban Planning Expo, which is taking place from 10-12 October 2023 at the Oman Convention and Exhibition Centre.

The Expos will showcase the most comprehensive range of innovative products, services, solutions and the entire supply chain under one roof by local and international participants to trade visitors, potential buyers, policy makers, government officials, C-Level executives, business leaders, leading industry experts, top-tier public visitors and key decision makers from the region and beyond, making it a definitive power packed networking platform, where new projects and partnerships are initiated and visionary objectives are implemented.

Commercial UAV Expo, September 5-7, 2023 in Las Vegas

Commercial UAV Expo, September 5-7, 2023 in Las Vegas is the premier event for the commercial drone industry focusing on the integration/operation of commercial UAS.

The event will feature exhibits and demonstrations by UAS solutions providers; keynotes, panel discussions, and presentations with interactive Q&A and chat; AI-powered networking; and more. Industries covered include Construction; Drone Delivery; Energy & Utilities; Forestry & Agriculture; Infrastructure & Transportation; Mining & Aggregates; Public Safety & Emergency Services; Security; and Surveying & Mapping.

It is presented by Commercial UAV News and organized by Diversified Communications. Use code SAVE100 for a $100 discount and/or FREE expo admission. 4,000 attendees from 75 nations. www.expouav.com

Kenya

- Architectural Association of Kenya

- Institute of Quantity Surveyors of Kenya

- Institute of Engineers of Kenya

- Association of Consulting Engineers of - Kenya

- Association of Professional Societies of East Africa APSEA)

- Kenya Property developers Association

- Institution of Surveyors of Kenya

-Town and County Planners Association of Kenya (TCPAK)

South Africa

- ASAQS - SAICE

- South African Council for the Quantity Surveying Profession

- Khuthaza ( Women for Housing)

- Concrete Manufacturers Association

- Green Building council of SA

- South African Property Owners Association

- Master Builders South Africa

Uganda

Institute of Surveyors of Uganda

Uganda Institute of Professional Engineers (UIPE) &

Uganda society of Architects

Botswana

- Institute of Botswana Quantity Surveyors

Ethiopia

- Association of Ethiopian Architects

- Ethiopian Association of Civil Engineers

- Construction Contractors Association of Ethiopia

Zimbabwe

- Zimbabwe Institute of Quantity Surveyors

- Zimbabwe Institute of Engineers

- The Construction Industry Federation of Zimbabwe (Cifoz)

Ghana

- Ghana Institute of Engineers

- Architects Registration Council

- Ghana Institute of Surveyors

- Ghana Green Builders Association

- Ghana Institute of Planners

- Association of Building and Civil Engineering Contractors of Ghana

Namibia

- Institute of Namibian Quantity Surveyors

- Association of Consulting Engineers of Namibia

Tanzania

- Tanzania Institute of Quantity Surveyors

- Construction Regulation Board (CRB)

- Tanzania’s Registration Board of Architects and Quantity Surveyors (AQSRB)

Nigeria

- Association of Consulting Engineers Nigeria

- Association of Professional Women

Engineers Of Nigeria

- Council of Registered Builders of Nigeria

- The Nigerian Institute of Architects

- American Association of Petroleum

Geologists Africa Region

- Nigeria Society of Engineers

- Nigeria Institute of Architects

- Building and Construction Skilled Artisans Association of Nigeria (BACSAAN)

Zambia

- Zambia Institute of Architects (ZIA)

- Association of Building and Civil Engineering Contractors (ABCEC).

www.constructionreviewonline.com May/June 2023 | CR 5 EVENT NEWS
Association Partners

Ethiopia launches the fourth filling of the Grand Renaissance Dam

Ethiopia is preparing to launch the fourth filling of its mega-dam reservoir on the Blue Nile, It was announced recently, despite opposition from its downstream neighbor Egypt.

The massive $4.2 billion Grand Ethiopian Renaissance Dam (GERD) has been at the centre of a regional dispute ever since Ethiopia broke ground on the project in 2011.

Egypt and at times Sudan have repeatedly asked Addis Ababa to stop filling the reservoir.

"The GERD is now approaching its fourth filling. The last three fillings have not affected lower riparian states. Likewise, the rest of the fillings will not be any different," said Demeke Mekonnen, who also serves as foreign minister.

"The project is near completion, withstanding the rhetoric of some actors that seek to monopolise the use of the shared African river," he said, opening a conference on the Nile in Addis Ababa.

PROJECT

The meeting includes a "high-level ministerial round table", with Demeke and his foreign minister counterparts from some Nile Basin nations such as Uganda, the Democratic Republic of Congo, South Sudan and Tanzania participating.

But neither Sudan nor Egypt, the two countries located downstream of the Ethiopian dam, are represented.

Khartoum and Cairo have previously cited it as a threat because of their dependence on Nile waters, while Ethiopia deems it essential for its electrification and development.

While Egypt, which depends on the Nile for around 97 percent of its irrigation needs, insists that the dam poses an "existential" threat, Khartoum's position has fluctuated.

Sudan's leader, Abdel Fattah Al-Burhane, said in January that Khartoum and Addis Ababa are "aligned and in agreement" over the dam.

Sudan has been ravaged since mid-April by deadly fighting between forces loyal to Al-Burhane and his rival and former deputy Mohamed Hamdan Daglo, with more than 2,000 people killed and over two million displaced.

PROJECT

The US$ 500Bn dollar Neom Project

Ambitious, innovative and forward-thinking, NEOM (meaning “new future”) is the flagship project of Vision 2030. The brainchild of His Highness Crown Prince Mohammed Bin Salman, it encompasses Saudi Arabia’s plans to move away from an oil-based economy, reduce the country’s reliance on hydrocarbons and lead the global stage in creating a new model for sustainable living.

The $500 billion business and tourism development and “living laboratory” will be both a vibrant, resident-forward society and a thriving hub for international innovation. Covering some 26,500 square kilometres, NEOM will encompass several key economic sectors and areas such as smart towns and cities, ports, a network of airports (including one of the largest international airports in the world), industrial areas, research centres, sports and entertainment venues and tourist destinations, including the first-ever ski resort in the GCC.

Located on the Red Sea coast in the northwest province of Tabuk, NEOM boasts a unique, central geographic location. An estimated ten percent of the world’s trade already flows through the Red Sea and project leaders estimate that NEOM is a fourhour flight away from 40 percent of the globe. This not only makes it very accessible for tourists (more on that later) but also offers business owners and investors direct access to both international and Saudi markets.

The sheer scope, scale and ambition of the project is awe-inspiring in itself. What really sets NEOM apart is the way in which futuristic plans and advanced technology are being balanced with an obvious commitment to Arabian heritage and hospitality.

NEOM also aims to be a tourist destination as well as a home to people who are looking to experience the unimaginable. It is also working towards the promotion of sustainable living, in turn hoping to achieve a sense of prosperity and growth for the Kingdom as a whole.

Plans are in place to ensure that NEOM will be powered entirely by renewable energy, the city will preserve 95 percent of the natural environment and will pave the way in global water production, efficiency and storage thanks to new desalination technology.

The city will also welcome some of the top mega-projects including NEOM TROJENA, NEOM THE LINE, NEOM Nimbus and NEOM Oxagon.

NEOM THE LINE

THE LINE is one of the major projects in the smart city. The vertical city will be an AI-enabled cognitive city like never before. Stretching across 170 kilometres, the cutting edge science and design aim to enhance the lives of the potential one million future residents by focusing on walkability, livability, health and wellbeing.

The zero-carbon city hopes to redefine the modern ways of living by eliminating roads and cars and instead creating a linear environmentally friendly metropolis made up of interconnected, pedestrianised communities. THE LINE will also provide residents with access to daily amenities including shops, schools, medical facilities, leisure centres, green spaces, all within a five–minute walk radius. Residents will be able to travel by an ultra-high speed, zero-carbon mass transit system with a maximum journey duration of 20-minutes anywhere within THE LINE. NEOM is developing its own high-speed rail link called THE SPINE.

NEOM TROJENA

TROJENA is one of the developments in the smart city aiming to be an iconic world-class destination. The unique mountain destination will be the first-ever skiing resort in the GCC, offering human-centric experiences to residents and visitors through six districts, each mixing virtual architectural and engineering innovations into one.

The regional plan will be located 50 kilometres from the Gulf of Aqaba coast with elevations ranging from 1500 metres to 2600 metres and will cover an area of approximately 60 square kilometres. The year-round outdoor skiing resort is scheduled to be completed sometimes in 2026 and will boast highlights including a man-made freshwater lake and ‘The Vault’ which will be a folded village meshing together technology, entertainment and hospitality and acting as the main gateway to TROJENA. TROJENA will also host the Asian Winter Games 2029 after Saudi Arabia recently won the bid.

NEOM OXAGON

A place for innovators and entrepreneurs, OXAGON will be a city where industries and technology come together with nature. As part of Vision 2030, OXA-

8 CR | May/June 2023 www.constructionreviewonline.com COVER STORY

GON will be the largest floating structure in the world with 13 percent of global trade passes through the Suez Canal. The city also aims to host a population of 90,000 residents and create 70,000 jobs by 2030. The 100 percent clean energy city will be a hub of reimagination for work, living and overall sustainability.

NEOM Nimbus

A first in the world, NEOM Nimbus will hopefully be a five-star hot air balloon hotel, taking hotel views to new heights. The idea was brought

about by a group of students from Cornell University. The self-contained hotel room will make stops at 20 sites and upon landing will unfold into a canopy-like eco-hotel. The hotel will run on bio-propane and aims to promote remote and sustainable living, a concept common among all NEOM developments. The carbon fibre pod will have sleeping, dressing and lounging areas with a bathroom foyer, pilot service, an observation deck and potentially a butler.

www.constructionreviewonline.com May/June 2023 | CR 9 COVER STORY

Phase 2 of Tema Port expansion project roll out

The operator of Tema Port, Meridian Port Services Ltd. (MPS), has announced it will roll out phase two of the Tema Port expansion project in Ghana. The extension project seeks to improve Tema Port’s infrastructure and capacity to fulfil the expanding demands for connectivity and trade. According to the company, construction will be completed by September 2025.

So far, MPS said it has finalised the necessary arrangements to commence phase two. Which calls for large civil works and construction operations. The project will be carried out in partnership with EIFFAGE Génie Civil Marine SA and De Simone Limited. Given their accomplishments in Phase 1 and the pavement work for the 4th Berth of the Tema Port expansion project, EIFFAGE Génie Civil Marine SA and De Simone were chosen for this phase.

Meridian Port Service Chief Executive Officer, Mohamed Samara, emphasized his company’s unrelenting commitment to achieving its mission of offering Ghana and West Africa a cutting-edge commer-

cial connection platform.

Mr Samara said, “The creation of a reliable and efficient infrastructure is essential to meeting future demands for trade facilitation. Our assessment is that Tema Port in Ghana is most placed to complete this objective.” He added by saying that MPS is unwavering in its dedication to promoting regional trade expansion. As well as developing a cutting-edge commercial connectivity platform for Ghana and West Africa.

The main goal for Phase 2 of the Tema Port expansion project is to pave a sizable area of 270,000 square meters using 14 million pavement blocks that adhere to the highest industry requirements. Furthermore, this painstaking paving job offers the solidity needed to support huge cranes operating in the area.

The project will also support the operational yard, and increase the terminal’s storage capacity from 80 to 120 hectares. As well as add 16 km of cable conduits and 5.5 km of drainage pipes.

10 CR | May/June 2023 www.constructionreviewonline.com PROJECT

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Greenville Gardens Another Residential Gem in Nairobi’s Westlands District

Westlands is one of Nairobi's most desirable areas, with a thriving business and nightlife scene. It is well-connected to the rest of the city, making commuting a breeze. The neighbourhood is located near important routes such as the Nairobi Expressway and the Thika Highway.

Westlands offers a mix of housing options, including apartments, townhouses, and gated communities. The variety of choices caters to different budgets and preferences.

Living in Westlands gives you access to a variety of amenities. Several shopping centers, including Sarit Centre and Westgate Mall, can be found in the area. These malls have a wide range of shops, supermarkets, restaurants, cafes, and entertainment options. Westlands is also known for its active nightlife, which includes a plethora of bars, clubs,

and lounges. For fitness lovers, the neighborhood also boasts a number of sports clubs, gyms, and wellness centres.

Westlands is also commercial hub, with many firms, offices, and corporate headquarters. Professionals from a variety of industries, including banking, technology, and hospitality, are drawn to the area.

Greenville Gardens is one of the latest residential developments that is set to grace the skyline of Westlands. Located on General Mathenge Drive, a posh section of the larger Westlands area, the residences currently under construction stand out with their impeccable architecture and a fine blend of spaces that allow functional flows while ensuring utmost privacy.

12 CR | May/June 2023 www.constructionreviewonline.com PROJECT

Designed by EMACS CAD Solutions Limited, the development consists of 2-bedroom apartments and 3-bedroom units as well as 4-bedroom duplexes.

Floor to ceiling windows, high end finishes and spectacular views are some of the features the architects have incorporated in the design to ensure the apartments are the perfect place to live. A Sky-club located on the rooftop is the focal point of the project, ideal for unwinding at the end of the day or on weekends.

Other notable amenities include a heated swimming pool, pool decks, gym, and steam/sauna.

The spaces have been meticulously designed to stimulate the senses. Serene entrance water features and a luxury concierge will set the tone for the overall atmosphere, providing tenants with every possible luxury under one roof.

Here’s a summary of the other amenities that promise to make Greenville Gardens a great residential address:

 Built-in wardrobes

 CCTV and electric fence

 Children’s Playground

 External Lighting

 Heated Swimming pool

 High speed lifts

 Intercom

 Internet Access

 Car-charging ports

 Personalized security Key Card

 Roof Top Barbeque Area

 Solar panels

 Standby generator

 Walking /Jogging Track

Greenville Gardens is a project of Primofort Investment Limited, a Kenyan property development firm specializing in the creation and delivery of modern, economical, and high-quality residences. The company collaborates with its clients to create projects with high-quality finishes at an affordable and fair price, on time.

Project Team

Client: Primofort Investment Limited

Architects: EMACS CAD Solutions Limited

Mechanical/Electrical Engineers: Empaq Ltd

Civil/Structural Engineers: Terraconsult Kenya Ltd

Quantity Surveyor: Sage Projects Limited

Main Contractor: Mnara Property Group

Electrical Subcontractor: Ess Tee Zee International Co.

Plumbing Subcontractor: Plumbuild & Engineering Ltd

Interior Designer: Studio62

www.constructionreviewonline.com May/June 2023 | CR 13 PROJECT

ESS TEE ZEE INTERNATIONAL CO.

We are proud to be associated with the Greenville Gardens Project

P.O. Box 27505-00506 Nairobi, Kenya Tel: 0721392284/0701036047. Email: essteezee.co@gmail.com

GREENVILLE GARDENS

We are proud to be associated with EMACS CAD Solutions Ltd on the prestigious GREENVILLE GARDENS PROJECT

Plumbuild & Engineering Ltd Premises, Hari Industrial Park C1, Masai Road off Mombasa Road, P.O. Box 5111-00506 Nairobi, Kenya, Tel: 020 2081506, 0736 521030

Email: info@plumbuildke.com, plumbuild2010@gmail.com

We are proud to be appointed the Interior Design Consultants for the Greenville Gardens, Nairobi

P.O. Box 64270 - 00620

Ola Energy Plaza, Nairobi +254 715 409 525/ +254 735 498 526 interiors@studio62ltd.com

http://studio62ltd.com/

14 CR | May/June 2023 www.constructionreviewonline.com PROJECT
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Three Decades of Interior Design: A Journey through Planning Interiors Limited

Interior design encompasses more than mere furniture arrangement and colour selection; it is an art that transforms spaces into harmonious, functional, and aesthetically pleasing environments. Whether it's a cozy home, a stylish office, or a trendy café, interior design plays a crucial role in creating inspiring and uplifting spaces.

In Kenya, the field of interior design emerged as a distinct trade over thirty years ago, and one company that has witnessed this evolution is Planning Interiors Limited (PIL). As PIL celebrates its 30th anniversary this year, it reflects on the remarkable journey and growth of not only the business itself but also the entire interior design industry in Kenya and the region.

Evolution of Interior Design

The role of professional interior designers has become widely recognized in the building industry, unlike in the past when architects provided such services on an ad hoc basis. Over the years, the interior design industry has undergone significant transformations, embracing sustainable and biophilic design concepts, as well as seamlessly integrating technology into homes and office environments.

PROFILE
KCB Headquarters - KCB Towers
Eugene Ngugi, Managing Director

Cellulant Offices

It’s been an interesting journey”, says Eugene Ngugi, Managing Director. “Interior design as a profession has come a long way not only in Kenya but also in the region. So when we look at 30 years, it’s not just for PIL as a business but the entire industry as well.”

PIL has its beginnings in the early 1990s when the 1987 University of Nairobi Design graduate was working at PLANNING Systems Services, a respected architectural studio. Previously, he had a stint at House of Interiors where he honed his skills in interior design, rising to Chief Designer in the firm.

Back then, interior design was seen as a section of general design and it was common to find the trade bundled together with graphic design, and other design work, as Eugene experienced during his first job placement.

Eugene was hired by PLANNING Systems Services in 1992, a period when architectural firms were beginning to set up Interior Design departments. “At the time, PLANNING Systems Services had recruited some interior designers from the United Kingdom to work on fit-out projects,” he recalls.

“I was very useful to the UK team as I had worked

locally for five years and gained valuable experience in interior aspects including furniture, partitions, local contractor fit-outs, etc.”

Eugene helped grow the Interior Design department at PLANNING Systems Services, getting two other designers and expanding to seven within three years. “It was the right time to set up the department as the firm (PSSL) was now doing a lot of office buildings and would get interior design and fit-out work from tenants,” he says. “It was good business.”

In 1997 when two expatriates in the Interior Design department returned to their home countries, the founding partners at PLANNING, Jim Archer and Trevor Andrews, decided to promote Eugene to head the department rather than hire new expatriates.

Recognizing the immense potential of their independent interior design work and the importance of avoiding conflicts of interest on projects, the partners took a bold step in 1993. They established the Interior Design department as a separate company – Planning Interiors Limited. This move laid the foundation for a future filled with creative freedom, and the ability to collaborate with other architectural firms across the region. Although the Interior Design section operated as a

PROFILE

department within PLANNING, it was nonetheless a registered company - Planning Interiors Limited.

In 2002, the PLANNING Systems Services partners hived off Planning Interiors Limited to Eugene and Fatema (Eugene’s fellow interior designer) to set off on their own. Fatima Essaje helped Eugene as the Design Director.

For about one year, PIL operated from the premises of PLANNING on Lower Kabete Road before finding a home in their current address, Roshanmaer Place on Lenana Road in Nairobi’s Kilimani suburb in 2004. Interestingly, it was while doing interiors for the South African High Commission, then located in the same building, that PIL decided to settle there.

“Getting jobs was relatively easy at the beginning”, says Eugene, an award-winning interior designer. His experience at PLAN-

NING came in handy and fortunately while still there he had begun learning the art of managing a business.

“There were very few interior design firms then. Our main competitors were architectural firms. We would do mostly corporate office work and bank branches.” Practically all the work would come in through word of mouth or referrals rather than competitive bidding’ remembers Eugene. “These days, to get a project, you have to really fight for it.”

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We congratulate PLANNING INTERIORS LTD on their 30th Anniversary! ELECTRODATA WAYS LTD P.O Box 38323-00623 Nairobi Tel: 0794 768943 E-mail: info@electrodata.co.ke Electrical Contractors Power Distribution AVR Structured Cabling Solar Lighting
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www.constructionreviewonline.com May/June 2023 | CR 19 CONGRATULATIONS PLANNING INTERIORS LTD ON YOUR 30TH ANNIVERSARY 12 Lange Lange Court, Jakaya Kikwete Road, Nairobi Tel: 0795 113838 E: info@buildingservices-group.com Web: http://buildingservices-group.com/ Forest Court, Wangari Maathai Rd,Unit 304, Nairobi, Kenya Tel: +254 723 818 585/ +254 720 351 592 Email: info@coststudio.co.ke Website: https://coststudio.co.ke/ Proud to be associated with PLANNING INTERIORS LTD as they mark their
Building & General Contractors Congratulations Planning Interiors Ltd on your 30th anniversary! Trance Towers, Fourth Floor, Along Tsavo Road South B, Nairobi Mobile Number : 0722 330 584 Office Number : 0780 330 584 Email: info@rworld.co.ke Website: https://rworld.co.ke/ Option 2
Nairobi

PIL started with a team of 11 comprising 7 designers and 4 support staff. The company has a workforce of 18 staff today. But the size has fluctuated over the years depending on the general business environment in the industry. “At one point, we were about 36,” says Eugene.

PIL takes pride in transforming interior spaces for some of the most reputable corporates in the country. Among the projects that stand out are Open Society Initiative for Eastern Africa (OSIEA) where, in line with the client’s value of inclusivity, PIL created a new office that is homely, vibrant, innovative, diverse, Afrocentric, and sustainable. Other projects include General Electric offices, KCB Head Office and branches, I&M Bank Head Office, Coca-Cola, House of Waine, Wasoko Head Office, Cellulant, and many more.

According to Eugene, most interior design these days is brand-centric. “In the past, I would travel extensively around the world to places like South Africa, the United Kingdom, and the United States to get exposed to international standards and see how to bring that back home but nowadays when we do a project, we try to express the character of the brand. We also try to promote local flavor in aspects such as art, furniture, etc.”

“We call it glocal, which is an interconnection of global and local aspects. So, a project can be global in terms of technical standards but local through the use of materials available here.”

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Specialists in:

Road A, Off Enterprise Road, Industrial Area, Nairobi, Kenya

Tel: 020 801 4919/0771 340900

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Congratulations Planning Interiors Ltd as you mark 30 great years!
SPECIALIZED ALUMINIUM RENOVATORS LIMITED HIGH-END INTERIOR FIT-OUTS, STAINLESS STEEL & ALUMINIUM FABRICATORS I&M Bank headquarters

Eugene reveals that indeed most international companies are keen on the glocal element. “Their office here should not look exactly like what they have in London or New York. They want their local office to say something about Kenya and her people.”

To achieve these exciting results for clients, PIL, like other consultants has to work with contractors. So how does the company ensure that the contractor understands the design and brings out the space exactly as envisaged? “To achieve the desired result, PIL works with qualified contractors whose capabilities have been tried and tested, says Eugene.

“We walk the journey together with our clients to understand their goals, and how best to realize them.” PIL also ensures that our drawings and specifications are as detailed as possible and clear to the contractors. “We also supervise our projects very closely.” He adds that Design & Build projects are more convenient but there are also many cases where clients have their preferred contractors and PIL has to work with them.

Over the last 30 years, there are several important changes that have impacted the interior design sector, says Eugene. “One of the biggest is technology. When we were doing corporate offices in the late 1980s, an office would have basic components such as desks and telephones. Today, we have audio-visual equipment, Internet and data connectivity, security systems and so on. Projects have become much more technical.”

“Another change is in materials”, says Eugene pointing to a laminate table. “Twenty or thirty years ago, we would probably have done it in wood. There is much more variety than we had thirty years ago.” He adds that sustainability has also become enormously important, revealing that some of PIL’s clients have given express instructions to deploy only sustainable materials sourced from specific places.

Having lived through the last 30 years, PIL is not about to slow down. According to Eugene, the company hopes to expand its services in the region, having already worked in Tanzania, Zanzibar, and Uganda. It’s currently pursuing work in Rwanda. And as the firm grows, Eugene is focused on growing leadership capacity within the team with the intention of gradually relinquishing executive management. “I intend to move on to other areas such as design education and business mentorship”, he reveals, adding that although he would still like to occasionally do a project, he is looking at spending some of his time doing fine art, which he has always had a passion for. “I may also get involved in organizations that support the creative industry.”

“For PIL, I see us doing more turnkey projects. However, we have no intention of not abandoning the creativity that made us what we are.”

www.constructionreviewonline.com May/June 2023 | CR 21 PROFILE
Sumsconsult ∑ Consulting Quantity Surveyors 4th Floor D-08 Kipro Centre, Westlands, Nairobi, Kenya Tel: +254 20 2043257/+254 722232870 Email: info@sumsconsult.co.ke, Website: www.sumsconsult.co.ke Congratulations PLANNING INTERIORS LTD on your 30th Anniversary! Proud to have been your partner for decades.
Nyama Mama House of Waine

Reflections as Triad Architects Mark 60 Years

A spiritual pilgrimage to the Kericho Sacred Heart Cathedral can be life-changing. Not only does entering the massive edifice exude the presence of a higher being, but the structure itself is strangely beautiful. The sloped roof, which evokes lovely imagery of Kericho's hills and valleys, brings out the complexity and simplicity of architecture. And it boils down to the brief – an inspiring structure that would create a stimulus for the congregation to “assemble and grow”.

The cathedral bears the signature of Triad Architects. Yet, although the firm has its name inscribed on many buildings, the Kericho Cathedral has a special spot in the heart of Triad. “This was not a big project in terms of costs and magnitude,” says Cecilia Wahinya, Triad Architect Partner. “Rather, it has everything to do with its good design and impact on the community”.

For Triad Architects, which is celebrating its 60th Anniversary this year, the overriding principle over the past six decades has been a need to leave a lasting ‘impact’ in all its projects. In fact, since its founding by Amyas Connell ad Graham McCullough in September 1963, some traits have remained constant despite the changing face of architecture and the building and construction industry. Integrity, ethics, professionalism and a clearly defined succession plan has ensured Triad continuous to be a leading practice.

Succession, in particular, has been central in making Triad what it is today. Having been established by foreigners, the possibilities of the practice sinking into oblivion would have been high had the founding partners not made a conscious decision to identify well talented and skilled young architects, put them under their wings through training and make them partners at the opportune moment. This savvy decision brought highly-skilled people like Timothy Vaulkhard and Daniel Mutiso, the first African to join Triad straight out of architecture school, to the practice. The trend of sound succession remains sacrosanct at Triad. “To make partner, you just need to be in sync with the firm, do things in the right way,” says Sujesh Patel, Triad’s youngest partner.

Also revered at Triad is the aspect of diversity. While for years the architectural industry had largely been a domain of men, it has now become easier for women to enter the industry and rise to the highest echelons, including the presidency of the Architectural Association of Kenya (AAK). “It is a good time to be an architect because it has become a lot easier for women. You just need the right attitude,” states Cecilia Wahinya who joined Triad in 2010, adding that having worked abroad, she was lucky to land at Triad, a practice with a clear mentoring and a succession plan.

Adherence to principles, even when it looked irrational like during the 1980s and 90s when Kenya was in a state of prolonged political and socio-economic abyss, has not only entrenched professionalism in Triad but has also ensured the firm remains as one of the most respected architectural practices in Kenya and beyond. “We are well known for integrity and professionalism,” states James Gitoho, the oldest partner who joined Triad in 1981 and became partner in 1988. “These were

22 CR | May/June 2023 www.constructionreviewonline.com PROFILE
Triad Architects’ Directors and Partners. Standing from left: Julius Kibwage, Charles Ndungu and Sujesh Patel. Seated: James Gitoho and Cecilia Wahinya. GTC, Nairobi: A city within a city Britam Tower, Nairobi

foundations that were laid by our founders and have been passed over four generations.”

Triad is a testament that with the right foundation, success is often assured despite the season. Being a practice that is older than Kenya (the country got independence in December 1963), the firm has been there at every step of Kenya’s evolution. Notably, its successes, tribulations and even near collapse have been synonymous with the country’s political and socio-economic transformation. When Kenya nearly fell into the shackles of a coup in 1982, Triad barely had its head afloat. When the country was experiencing an economic boom after the Narc Government came into power in 2002, the firm was swimming in overwhelming projects.

“Architecture is directly related to the pulse of the country and we are proud to still be here,” explains Gitoho. For Triad, the unwavering focus and devotion to ethos has been a shrewd strategic decision that has catapulted the firm to success. In fact, if projects in its fold are the benchmark, Triad has a signature at every defining historical moment. At independence, the firm had its name in Parliament Building. When Kenya was starting to get its bearings right in terms of economic development in the 1970s, a period when the country was ahead of Asian tigers like Singapore, South Korea and Malaysia, Triad’s insignia included Norfolk Hotel representing the growth in tourism and hospitality and the Kenya Planters Coffee Unions (KPCU) building during the coffee boom.

At the height of political and economic upheavals in the 1980s and 90s, Triad kept its flag flying with the Times Towers and Barclays Plaza. “The 80s and 90s were a tough period but what kept us afloat even with the difficulties is that we had established a name,” avers Julius Kibwage, Triad chairman who joined the practice in 1987. He adds that during the time, many firms particularly those started by foreigners ended up folding or relocating to countries with better business environment.

Many others survived on under-hand dealings owing to the fact that corruption was at its peak. This was particularly rampant for government projects. Sadly for firms like Triad, they were largely the only jobs available. Political instability, corruption and the structural adjustment programs had sent foreign investors packing with aid agencies that were funding projects like schools, hospitals and churches also opting to stay away.

Securing the Times Tower project from the Central Bank of Kenya (CBK) amidst stiff competition, coupled by the fact that various banks were expanding their brick and mortar, footprint gave Triad a survival lifeline. “We refused to participate in deals that were not straight,” explains Kibwage, adding the fact that CBK and some banks wanted to work with a reputable firm with a proven track record saved Triad from demise.

Having survived a tough period unscathed, Triad’s star could only shine when the country took a turn for the best. In fact, even when stiff competition set in with the establishment of many architectural practices, Triad was largely unperturbed. This ir-

www.constructionreviewonline.com May/June 2023 | CR 23 PROFILE
UAP Tower, Nairobi Margaret Thatcher Library, Moi University

respective of the fact that a large number of the proprietors who were opening new practices had passed through its tutelage.

During the economic renaissance of the last two decades, the iconic projects done by the firm are numerous. The Kericho Cathedral, Britam Towers, UAP Towers, Coca Cola headquarters and most recently the ultra-modern GTC Towers fall in this space. The firm has also undertaken several projects across the wider eastern Africa region including the Bank of Kigali headquarters, Uganda Ministry of Finance building among many others.

“Many firms have come into the industry but we remain as the most trusted,” notes Charles Ndung’u, Triad Partner. He adds that while living true to its ethos has been instrumental in the firm’s growth, Triad has also set the pace in the industry in terms of embracing technology and being innovative. Being in an industry where 70 percent of the job entails producing magnificent and iconic designs and 30 percent supervision

of projects, investing technology is critical. This is even more important considering the building and construction industry is making a shift to sustainability and green buildings.

“We have always purposed to use the latest technology and software being used in the industry,” he states.

Already well-grounded in the industry, Triad has in recent years been expanding its scope targeting areas like interior design and master planning. The firm has established Triad Interiors, a subsidiary whose mission is to create impactful spaces through exploration of new ideas, materials and techniques to express clients’ unique cultures and brands.

Also relatively new is Triad Master Planning that is involved in master planning and urban design processes that establish systems and frameworks that shape cities and lives

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Kericho Cathedral
www.constructionreviewonline.com May/June 2023 | CR 25 PROFILE P.O Box 1120 - 00502, Nairobi, Kenya Phone: +254 705 792725/+254 732 792725 Email: info@coolplustechnical.co.ke Website: www.coolplustechnical.co.ke Air conditioning Refrigeration Cold room Installations Mechanical Ventilation Congratulations TRIAD ARCHITECTS on your 60th anniversary! DRY CONSTRUCTION LIMITED Congratulations TRIAD ARCHITECTS on your 60th Anniversary. We are proud to be associated with you! Specialists in Interior Fit-outs P.O. Box 66579-00800 Nairobi, Kenya Tel: (020) 6555892, 6555893. Email: info@dryconst.com EUROGASES AND TECHNICAL SERVICES LTD Jogoo Road Plaza, 2nd Floor. P.O. Box 50775-00200 Nairobi. Tel: +254 20 200 1200, +254 720 978321. Email: eurogastect@yahoo.com. Website: www.eurogases.com We are proud to be associated with the Tenwek Hospital, Bomet OUR SERVICES • Medical Gas Piping • Medical Equipment Supplies • Medical& Hospital Installation • Laboratories/School Labs • Theatre Equipment • Imaging Equipment • Physicians , Dental Chairs and accessories

through creation of sustainable and resilient cities. One of its key projects is the Northlands New Town in Kiambu Town. The proposed development, sitting on some 11,800 acres, consists of various facilities cutting across residential housing, recreational facilities, commercial centers, industrial estates, urban firms, civic building and hotels. Owing to the fact that when fully developed Northlands will house 270,000 residents, getting the master plan correct is vital.

“We need proper planning of our cities to avoid more concrete jungles like we have now,” notes Kibwage. This is more critical owing to the high rate of rural – urban migration. Studies have shown that if the current trend of urbanization continues, over 60 percent of Kenyans will be living in cities and towns by 2050.

The need to develop futuristic cities and sustainable buildings that respond to modern realities, some of which are a direct response to climate change challenges, has prompted Triad to build partnerships with reputable foreign firms. The partnerships have not only helped in enhancing Triad’s capacity and knowledge transfer but have also been fundamental in exposure on how global practices execute projects. On project that brings out the benefits and synergies of partnership is the GTC Towers in which Triad was the local partner of GMP Architects, a global brand.

Looking back over the past six decades, Triad sees the years as a rollercoaster ride. The government and policy makers have also added the spice in terms of commissions and omissions on regulating the architectural industry, meaning the industry still operates under an archaic building

code formulated in the 1960s. “In terms of regulation, the government hasn’t moved fast enough,” observes Ndung’u. He adds that even in matters of existing laws, enforcement continues to be weak. This partially explains why the building and construction industry face challenges including frequent collapsing of buildings.

Having grown from a miniature practice in 1963 to the leading architectural practice in Kenya, Triad is already looking forward to the next 60 years. “Triad will still be here in 2083,” concludes Gitoho. The secret, he adds, will be understanding how to remain relevant. Luckily for Triad, it has the template from the past six decades.

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Coca Cola Headquarters, Nairobi

WHEN TO USE BOLTS INSTEAD OF SCREWS

Gearing up for your next project — whether it’s building an entertainment center, shelving for your shop or a larger construction project — requires a bit of pre-planning. You have to think about what materials you’ll need and what fasteners you’ll use. Bolts and screws are two standard options, which brings us to a common question:

When should you use bolts instead of screws?

WHAT ARE THE ADVANTAGES OF BOLTS AND SCREWS?

When it comes to the bolts vs. screws debate, you’ll find they have different advantages because they’re designed for different applications and materials.

Screws are a versatile fastener, which makes them a favorite choice. They provide a secure grip thanks to their threads and they meet the needs of numerous do-it-yourself (DIY) projects. They come in a variety of sizes and types for wood, metal, drywall and even concrete applications.

Screws are designed to be self-tapping, but in many cases you may still want to drill a pilot hole. If you drill all your pilot holes at once, this process is a little less time-consuming, since you limit how often you’re changing out your drill bit.

While you can rely on the DIY "hack" of using a nail to drive your pilot hole, a cordless

or corded power drill provides better results. Drills also make the installation — or even removal — of screws easier compared to a handheld screwdriver.

Screws are a versatile fastener, which makes them a favorite choice. They provide a secure grip thanks to their threads and they meet the needs of numerous do-it-yourself (DIY) projects. They come in a variety of sizes and types for wood, metal, drywall and even concrete applications.

Bolts provide the best holding strength compared to screws and other fasteners. Thanks to their threads, bolts can provide an unparalleled level of holding power. They do require a nut and a washer for their installation. The washer helps to spread the load over a larger surface area, which reduces the wear and tear as well as the loosening of your bolt over time while the nut secures the bolt in place.

Like screws, bolts come in many sizes and types. They’re also usable with several materials ranging from metal and wood to concrete.

Installing a bolt requires a handheld or pneumatic wrench to remove or install it. Compared to screws, bolts can be easier to remove. The benefit of a pneumatic wrench is that it provides much more torque than a handheld tool, which makes your job easier.

BOLTS AND SCREWS www.constructionreviewonline.com May/June 2023 | CR 27

Having a general understanding of bolts and screws will help you decide when to use bolts instead of screws.

HOW TO DECIDE WHEN TO USE BOLTS INSTEAD OF SCREWS

Before choosing a side in the bolts vs. screws debate for your next project, think about these three factors:

APPLICATION

Your project is the biggest factor in whether you use screws or bolts. Remember: bolts provide a tremendous amount of holding strength whereas

screws offer a middle-ground for holding power. Light to medium construction projects, like for fencing or framing, are best for screws. Your heavy-duty projects are best for bolts. Bolts are also best when the finished project is meant to be assembled and disassembled easily.

MATERIAL

Whether you’re using sheet metal, wood, concrete or drywall for your DIY undertaking, you want to think about how it applies to bolts vs. screws. Material matters. Materials That Typically Require Screws:

• Plywood

• Press board

• Drywall

• Sheet metal

• Deck planks

MATERIALS THAT ARE USUALLY BEST FOR BOLTS:

• Concrete

• Studs

• Beams

There are some materials that could require either a screw or a bolt assembly for fastening. For example, a 2” x 4” might be best fastened as a stud that is part of the framework for a wall using screws, but for an application like a deck assembly, bolts are likely a better choice. Be sure to consider the load being put on the fastener in combination with the material when choosing between bolts and screws.

COST

Price is always a factor when budgeting a project, especially if you’re going to need a large number of fasteners. While using bolts can be more costly, using the correct fastener will save you money in the long run. If you end up having to do repairs on the project because you used the wrong fastener for the material or application, you aren’t really saving any money by going the cheaper route.

BOLTS AND SCREWS 28 CR | May/June 2023 www.constructionreviewonline.com

4 Types of Air Compressors: Which is Right for Your Project?

Air compressors are some of the most necessary appliances found at construction sites, as they can be used as a power source for electric tools. There are many different types of air compressors, each with its own unique capabilities and drawbacks.

Air compressors are categorized as either positive displacement or dynamic displacement, based on their internal mechanisms. The four most common types of air compressors are:

1. Rotary Screw Compressors

2. Reciprocating Air Compressors

3. Axial Compressors

4. Centrifugal Compressors

To help you make an informed decision for your project, we’ll cover the key features of each type and explain how each one works below.

Positive Displacement Compressors

Positive displacement compressors encompass a variety of different air compressors that generate power via air displacement. Air compressors in this category work with different internal mechanisms, but the principle for each is the same. A cavity inside the machine stores the air brought from outside, then slowly compresses the cavity to increase the air pressure and potential energy.

Rotary Screw Compressors

A common type of displacement compressor, rotary screws are some of the easiest types of air compressors to take care of, as they are equipped with an internal cooling system that doesn’t require much maintenance. They are typically large industrial-sized machines that can be either lubricated with oil or run oil-free. Rotary screw air compressors generate energy via two internal rotors that turn in opposite directions. The air gets trapped between the two opposing rotors and builds up pressure within the housing. Because of the internal cooling system, these air compressors are designed for continuous use, and range in power from 5 horsepower up to 350 horsepower.

Best For: Large-scale jobs and industrial settings that require continuous airflow

Reciprocating Compressors

Reciprocating compressors are another popular type of displacement compressor. They are typically found at smaller work sites such as garages and home construction projects. Unlike the rotary screw compressor, the reciprocating compressor is not designed for continuous use. A reciprocating air compressor also has more moving parts, which are lubricated with oil for

smoother movement.

Reciprocating compressors work via a piston inside a cylinder, which compresses and displaces the air to build pressure. Reciprocating compressors can come in single- or multi-stage variations, which affects the pressure ranges they can achieve.

When you need more power, the multi-stage compressor is the way to go. While single-stage compressors will get the job done for smaller projects such as woodworking and metalworking, multi-stage compressors provide the power needed for intense construction, such as automobile assembly and maintenance.

Best For: Home and small-scale construction projects

Dynamic Compressors

Dynamic air compressors generate horsepower by bringing in air with rapidly rotating blades and restricting it to create pressure. The kinetic energy is then stored as static within the compressor. Axial and centrifugal compressors are the two most common types of dynamic compressors.

Axial Compressors

Axial air compressors are not typically used in

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construction projects. Instead, they are commonly found in high-speed engines on ships and planes. Axial compressors have a high efficiency rate but are much more expensive than other types of air compressors, making them best suited for aerospace applications requiring high horsepower.

Best For: Aerospace applications and high-speed engines for ships

Centrifugal Compressors

Centrifugal air compressors slow and cool incoming air through a diffuser in order to build up potential energy. Because of their multi-phase compression process, centrifugal compressors are able to produce a high amount of energy in a relatively small machine.

These compressors require less maintenance than rotary screw or reciprocating compressors, and some types can produce oil-free air. Because they can reach around 1,000 horsepower, centrifugal compressors are typically used for more demanding construction sites like chemical plants and steel manufacturing centers.

Best For: Large-scale steel and chemical manufacturing plants

How Do I Choose the Right Type of Air Compressor?

In addition to the power-generating mechanisms and energy output levels discussed above, there are several other factors to consider when choosing the air compressor that is best for your job.

Consider Air Quality

In clean manufacturing environments, using oil-powered air compressors can create a problem. Most air compressors rely on oil to lubricate the

inside mechanisms, and the fumes may contaminate the air, resulting in damage to products or manufacturing processes. With an oil-free air compressor, this risk is greatly reduced.

Though oil-free compressors are generally more expensive, they are the only option for facilities that guarantee clean manufacturing. Oil may still be necessary to lubricate the machine, but the inner workings of oilfree compressors contain a different sealing mechanism to ensure that no oil gets into the actual compressor.

In addition to clean air, oil-free compressors often have lower running costs, as parts do not need to be changed as frequently.

Prioritize Energy Efficiency

If you’re working on a long construction project, getting a high-efficiency air compressor can be worth the extra cost in the long run. If you’re looking for an energy-efficient air compressor, consider one of the following options:

•Variable speed: Variable speed-driven (VSD) compressors save energy and money by allowing you to increase or decrease output on demand. In comparison, the motors in fixed-speed compressors are constantly churning at the same rate and require a cool-down period that uses extra energy.

•Natural gas: Natural gas air compressors run on natural gas instead of diesel or electricity. They often operate more efficiently than other options and have better heat recovery capabilities than electric compressors. If efficiency and energy savings are your main goals, a natural gas unit may be a good fit.

Consider Portability Limitations

If you transport your air compressor between sites, a portable unit is a good option. Small, lightweight units can still deliver energy, but in a compact package. Though they won’t be as powerful as larger units, portable compressors can be ideal for smaller construction projects. Certain units can even be plugged into a car’s power adapter to fuel small airbrush painting or tire inflation tools!

Determine the Need for Additional Features

There are a variety of add-ons and additional features you can use with different types of air compressors. For example, couplers or air hose splitters allow you to hook up multiple tools to your air compressor so you don’t have to disconnect when you’re changing tasks. Air compressors with thermal protection add-ons keep track of internal heating and stop motor damage if the machine is overloaded.

Some air compressors have belt drive systems rather than direct drives, which allow for quieter operation. If you think you will need any of these additional features, you’ll want to make sure that the type of air compressor you choose is compatible.

If you don’t want the commitment of purchasing an air compressor for your construction job, BigRentz has several types of air compressors for you to rent for your next job. From small and portable to industrial-scale, you have all the information you need to make the best choice for you.

COMPRESSORS 30 CR | May/June 2023 www.constructionreviewonline.com +254 724 256 665 +254 733 714 108 / +254 734 800 201

8 Factors to Consider When Buying a Water Pump

A pump is a machine that can move water from one location to another. Water pumps are essential in households, especially if you want to pump water from a well.

Several factors come into play when you want to buy a new water pump. We've collected eight things to consider when buying a water pump.

Flow rate refers to a water pump's efficiency. The rate denotes the time the pump takes to move a certain amount of water. Typically, the measurement records the number of liters per minute.

Choose a pump that can move enough water for your needs. If you are looking to supply water to a farm or job site, a flow rate above 2500 liters per minute is necessary. In contrast, a flow rate of about 200 liters per minute may be perfect for normal household water requirements.

The average measurement of the inlet ranges from 1 to 6 inches, although bigger sizes exist. Generally, a big inlet guarantees faster water speeds at the outlet. If you want to complete your job quickly, choose a pump with a relatively larger inlet.

Maximum head refers to the farthest distance from which the pump has to pull the water. The maximum head becomes greater as the depth increases. Normally, you need to select a pump with a maximum head that is slightly greater than the water depth. This choice is meant to cater to the inevitable fluctuations in water levels. For example, if you have a water well that is 50m deep, your water pump should have a depth of 60m.

Pump capacity refers to the amount of energy the pump requires to move a

specific amount of water. This energy is usually in the form of electrical power. The optimal pump capacity depends on the required water discharge and depth. A pump with high capacity will perform better but

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1. Flow Rate 2. Inlet Size 3. Maximum Head 4. Pump Capacity

use a lot of electricity.

5. Size of the House

The size of your house will determine the type and model of the selected pump. The pump choice will also depend on the type and number of appliances in your house that use water. Pump manufacturers typically measure pump size in gallons per minute (GPM). A pump that measures 12 GPM can supply enough water to a four-bedroom house. Such a pump allows you to use every fixture and appliance daily.

6. Type of Pump

Pumps are available in many types. The first type is a submersible pump that consists of a valve, motor, and pump. The submersible pump can function properly inside the water as long as you submerge the pump fully.

Jet pumps are another common type of pump that you can use in your home. These pumps have a motor that will push water at high speeds. You can also choose a centrifugal pump that comes with a fan. This pump uses a suction mechanism and is more affordable than other types of pumps.

7. Pump Environment

Outdoor pumps require special materials and installation for protection from weather elements. For instance, the pump can easily freeze when the temperature drops. Other environmental considerations include dust and vapors.

8.

Water Properties

Water may have different properties that can affect the performance of your pump. You need to know the temperature and viscosity of the water before you buy a pump. Also, consider if there are any solids present in the water.

Protect Your Pump

A pump is essential if you live out in the country and get your water from a well. Nevertheless, the pump may experience problems that may require some repairs.

Action Well & Pump will help you to repair the pump, tanks, and well liners. Reach out to us today to get help with your pumps.

PUMPS 32 CR | May/June 2023 www.constructionreviewonline.com

Proper diesel generator maintenance

Proper diesel generator maintenance is key to ensuring that your equipment keeps running for years to come and these key points are essential.

1. Routine General Inspection diesel generator maintenance

During the running of the diesel generator, the exhaust system, fuel system, DC electrical system and engine require close monitoring for any leaks that can cause hazardous occurrences. As with any internal combustion engine, proper maintenance is essential.

2. Lubrication Service is essential for diesel generator maintenance

The engine oil must be checked while shutting down the generator at regular intervals using a dipstick. Allow the oil in the upper portions of the engine to drain back into the crankcase and follow the engine manufacturer’s recommendations for API oil classification and oil viscosity. Keep the oil level as near as possible to the full mark on the dipstick by adding the same quality and brand of oil.

The oil and filter must also be changed at acclaimed time intervals. Check with the engine manufacturer for procedures for draining the oil and replacing the oil filter and their disposal is to be done appropriately to avoid environmental damage or liability.

Nevertheless, it pays to use the most dependable, highest quality oils, lubricants and coolants to keep your engine working.

3. Cooling System as part of maintenance of your generator

Check the coolant level during shutdown periods at the specified interval. Remove the radiator cap after allowing the engine to cool, and, if necessary, add coolant until the level is about 3/4 in. Also remember to check on coolant filters and change when neccessary. Heavy-duty diesel engines require a balanced coolant mixture of water, antifreeze, and coolant additives. Inspect the exterior of the radiator for obstructions, and remove all dirt or foreign material with a soft brush or cloth with caution to avoid damaging the fins. Radiator flushing is also a critical diesel generator maintenance way to avoid overheating or high temperatures on the engine. If available, use low-pressure compressed air or a stream of water in the opposite direction of normal air flow to clean the radiator.

4. Check the Fuel System during maintenance of your generator

Diesel is subject to contamination and corrosion within a period of one year, and therefore regular generator set exercise is highly recommended to use up stored fuel before it degrades. The fuel filters should be drained at the designated intervals due to the water vapor that accumulates and condenses in the fuel tank.

Regular testing and fuel polishing may be required if the fuel is not used and replaced in three to six months. Preventive maintenance

should include a regular general inspection that includes checking the coolant level, oil level, fuel system, and starting system. The charge-air cooler piping and hoses should be inspected regularly for leaks, holes, cracks,dirt and debris that may be blocking the fins or loose connections.

5. Test Batteries during maintenance of your generator

Weak or undercharged starting batteries are a common cause of standby power system failures. The battery must be kept fully charged and well-maintained to avoid dwindling by regular testing and inspection to know the current status of the battery and avoid any startup hitches of the generator. They must also be cleaned; and the specific gravity and electrolyte levels of the battery checked frequently.

• Testing batteries: Merely checking the output voltage of the batteries is not indicative of their ability to deliver adequate starting power. As batteries age, their internal resistance to current flow goes up, and the only accurate measure of terminal voltage must be done under load. On some generators, this indicative test is performed automatically each time the generator is started. On other generator sets, use a manual battery load tester to attest the condition of each starting battery.

• Cleaning batteries: Keep the batteries clean by wiping them with a damp cloth whenever dirt appears excessive. If corrosion is present

GENERATORS www.constructionreviewonline.com May/June 2023 | CR 33

around the terminals, remove the battery cables and wash the terminals with a solution of baking soda and water (¼ lb baking soda to 1 quart of water). Be careful to prevent the solution from entering the battery cells, and flush the batteries with clean water when finished. After replacing the connections, coat the terminals with a light application of petroleum jelly.

• Checking specific gravity: In open-cell lead-acid batteries, use a battery hydrometer to check the specific gravity of the electrolyte in each battery cell. A fully charged battery will have a specific gravity of 1.260. Charge the battery if the specific gravity reading is below 1.215.

• Checking electrolyte level: In open-cell lead-acid batteries, verify the level of the electrolyte at least every 200 hr of operation. If low, fill the battery cells to the bottom of the filler neck with distilled water. Always disconnect generator batteries when not in use.

6. Routine diesel generator maintenance exercise

Regular exercising keeps the engine parts lubricated and thwart oxidation of electrical contacts, uses up fuel before it deteriorates, and helps to provide reliable engine starting. Engine exercise is recommended to be executed at least once a month for a minimum of 30 min. loaded to no less than one-third of the nameplate rating.

Most importantly, when it comes to engine maintenance, according to Peter Whitfield of YorPower a leading independent UK diesel generator manufacturer, it is recommended to do inspections regularly because preventative maintenance is better than reactive maintenance. Nevertheless it is of utmost importance to follow the designated service procedure and intervals.

7. For Diesel generator maintenance cleanliness is key

Oil drips and other issues are easy to spot and take care of when the engine is nice and clean. Visual inspection can guarantee that hoses and belts are in good condition. Frequent checks can keep wasps and other nuisances from nesting in your equipment. The more a generator is used and relied on, the more it needs to be taken care of. However, a generator set that is rarely used might not need a lot of care.

manufacturer of internal combustion engines from the UK, it is quite advantageous when you have maintenance kits for different service intervals.

9. Servicing the air cleaner

The air cleaner should be serviced after every 500 hours of engine operation with a filter element made of special highly porous cardboard or, if compulsory, by the use of the clogging signalizer. Servicing the air cleaner comprises purging of the main filter constituent, which holds dust coming into the air cleaner. The control filter element clogging states for damage of the main filter parts (paper curtain broken, bottoms coming off). In such case it is required to purge the control filter element and put back the main one. Also inspect the fresh air inlet and hot air discharge windows or ducts to make sure they are not closed or blocked.

10. Washing the engine breathers

The engine breathers should be cleaned with diesel fuel after every 2 000 engine operation hours. The diesel generator maintenance on breathers is done by removing the housings, taking the breathers from the cylinder heads cover caps, washing and purging them with compressed air. The breathers and their housings should then be put back in place.

8.

Exhaust system inspection for a diesel generator maintenance check

In case there are leaks along the exhaust line which usually occurs at the connection points, the welds and the gaskets; they should be repaired immediately by a qualified technician. Make sure all intake and exhaust ports are well covered.

Nevertheless according to Ms. Arlene of Maverick Generators in South Africa, always make sure your units are serviced. Especially 24 hrs before using your generators. "For standby generators for example you need to have your units serviced 150hrs on average. However if the generator is used constantly the hours go up much quicker and in more regular intervals," she adds.

Furthermore, according to Ryan Mason of Lister Petter a

34 CR | May/June 2023 www.constructionreviewonline.com COMPRESSORS
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Solar panel installation and maintenance

The most common location for the installation of solar PV panels is the roof. Most roofs typically have the desired specifications for the installation, so that panels get the maximum sunlight.

Nevertheless, if installation on the roof is not applicable or desired, the solar panels could also be mounted on the ground. You just need to make sure that there are no objects blocking access to the sun.

The following steps explain solar panel installation on a roof:

1. Set Up Scaffolding

Firstly, you have to erect scaffolding to ensure safety during the whole installation process when being on the roof.

2. Install Solar Panel Mounts

Then, the solar panel mounting system has to be set up. This will support the base of the solar panels. The whole mounting structure must be tilted and have an angle between 18 to 36 degrees to have maximum sunlight exposure.

3. Install the Solar Panels

When the mounts are set up, the solar panel itself has to be installed on the mounting structure. Make sure to tighten up all the bolts and nuts so that it stays stable.

4. Wire the Solar Panels

The next step in the installation process is to install the electrical wiring. In most cases, MC4 connectors are used because they are suited for all types of solar panels. Make sure to shut off the household’s electricity supply during the wiring installation.

5. Install Solar Inverter

After that, the solar inverter must be connected to the system. It is typically installed near the main panel and it could be both indoors and outdoors. Inverters are more efficient if kept in a cooler place. If the inverter is outdoors, it should be kept out from the afternoon sun. If it is installed indoors, the garage or utility room are usually the best places, since they stay cool for most of the year and have ventilation.

6. Bond Solar Inverter and Solar Battery

Thereafter, the solar inverter has to be connected to the solar battery. The solar battery storage can save you from worrying about the lack of usable energy during cloudy times, it can also lower the solar battery storage system costs during installation.

7. Connect the Inverter to the Consumer Unit

The inverter should be connected to the consumer unit to generate electricity. A generation meter should also be connected to monitor the amount of electricity the solar panels actually produce. You can use your computer or other device to check your solar system’s performance. For example, you can check how much electricity you generate at different times and decide

www.constructionreviewonline.com May/June 2023 | CR 35 SOLAR PANELS

what time is suitable for using your washing machine or other utilities.

8. Start and Test Solar Panels

The final step is to switch the power on and test the newly installed solar panel system. After that, the solar panel installation process is completed.

Solar Panel Maintenance

Since there are no moving parts, solar panels require very little maintenance. Once you have covered the installation cost of solar panels, there are not many costs associated with maintaining them. Having said that, you should inspect them a few times per year for dirt or some other things that might have piled on top. It is important that the panels are clean and there is nothing blocking them from efficiently absorbing the sun.

Before cleaning the panels yourself, you should consult with your installer about the warranty conditions. Some solar panel manufacturers could terminate the warranty if any self cleaning is done. For a general cleaning, you can just use a normal garden hose to wash the face of the panels. You should do this in the morning or evening. Also avoid spraying them with cold water while they are hot because that might damage them.

Moreover, If the panels need some more cleaning that the hose cannot provide, you can use a sponge with soapy water to scrub them. You can also get the services of a cleaning company. This is advisable if the panels are too high or need more thorough cleaning. You should have your system examined every 4-6 years by an installer. It is also a good idea to ask your installer about specific maintenance requirements for your solar system.

If you want to take the next step and get solar panels for your home, then look no further. Fill in the contact form to compare up to 3 quotes from suppliers near you. GreenMatch’s service is free of charge and without further obligations.

36 CR | May/June 2023 SOLAR PANELS +254 724 256 665 +254 733 714 108 / +254 734 800 201

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