Portfolio!

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Featured School Project(NTNU)

The M!ND

Green Link

The self-Shading Umbrella

Featured Work Project (MH)

Master plan and Infrastructure

University Clinic

Wollo University Adminstration

Science Museum

The M!ND:

Project year: 2021, NTNU

Project location: Trondheim, Norway

Project objective:

The project idea was to deliver a high architectural quality, low maintenance and sustainable commercial office building that has a ZEB balance of ZEB O-EQ. Having a built-up area of 11,000m2 across seven floors and abasement accommodating service facilities and bicycle parking.

The design is paid attention to deliver high architecture quality, low maintenance, variation of spatial distribution and sustainable approach, craving a connection to green recreation areas, friendly lanes for pedestrian and bikes, promoting public transport and accommodating neighborhood that are active throughout the day and night.

The design focuses on flexibility by providing area for both temporary and permanent tenants. The vertical circulation is designed in the two cores, accommodating services, circulation and other functions. The horizontal circulation is dependable on the area design, function, accessibility and zone segregation.

As the structure is placed in the prime location of the ZEN pilot project, the southern facade is detailed to efficiently contribute in solar energy production to achieve the ZEB O-EQ ambition.

Form Development:

Finding the optimum form that fits the building requirement, site conditions and climate is always important to achieve building efficiency. For this reason, different forms have put to evaluation which also considers maximized energy production from building integrated photovoltaics.

Optimized Building form

Accessability:

The site can be accessed at the first level at the North-west corner, South-west corner and the Southern end. Due to a level difference the ground floor is closed by a retaining wall at the eastern end. The building can however be accessed directly from the North-east corner on the first level, which is the closest entry to the Bus-stop.

Spatial Arrangement:
Technical rm and Bycicle parking Public area, rental, Recreational Hub Offi ce spaces, Rental zones

Ventilation strategy:

Form and Energy production:

The Roof size, roof openings were redesigned multiple times. The final option has a dedicated distribution of PVs on the roof and the south facade (90% coverage) and remaining are distributed along the East and West facades (45%).

Two alternatives are considered for the energy supply system.The purpose was to evaluate the impact of district heating, considering the fact that regulations hold it mandatory to use it.

The aim of the building is to reach the ZEB-O-EQ ambition level. After evaluating the emissions from the delivered energy and the renewable energy, It was seen that PV generation compensates for all the emissions that are caused by the operational phases. For this reason, the building can be considered as nZEB.

The strategy uses TEK17 minimum requirements for ventilation in public buildings; where fresh air supply due to pollutio from persons in light activity shall be a minimum of 26 m3/h per person.

Furthermore, the average supply of fresh air must be at least 2,5 m3/hm2 when the rooms are in use. This can be reduced to 0,7 m3/hm2 when the rooms are not in use.

3D Physical Model: Lesson Learned:

• every solution needs to achieve the energy balance, and hence needs to go through a rigorous process of optimising PV surface, floor areas without compromising on architectural and practical concerns.

• Super-insulated or superior performing buildings come with unique challenges that need to be addressed, in terms of design integration as well as functional characteristics.

ZEB Balance Energy strategy

Green link:

Project year: 2021, NTNU

Project location: Trondheim, Norway

Project objective:

The purpose is to quantify and study the impact of renovating an existing Industrial building called Langeland and Schei constructed in the 1960s, in Trondheim. It focuses on the adaptive reuse of the industrial building into a mix-use building that serves the existing local community and also supports the upcoming developments in the Nyhavna neighbourhood.

The study hypothesizes that the existing structural elements of the building, like steel columns, slabs, retaining wall are in good conditions to be used over for next 60 years, hence a large part of the existing building is retained with integration of the design concept - Greenhouse Zones, that brings a large amount of daylight into the structure, maintain internal comfort temperature and creates an active space throughout the year.

Site and Building:

The existing building (L&S) is used for industrial purposes as a mechanical workshop and was originally built in the 1960s. The building has been extended and renovated at least five times after the initial construction, with a construction time spanning between 1963 to 1998. The building’s footprint area is 3500m2 and has a gross floor area of approx. 4800m2 before renovation and 5200m2 after renovation.

Design approach:

The parameter that LCA is being used to find is the Global Warming Potential (GWP) measured in CO2eq. This way the analysis will describe the greenhouse gas emissions that the project will generate.

The concept aims to keep and reuse large parts of the existing building. All structural elements like slabs, columns, retaining walls are unchanged. Some materials of the existing building are demolished, like parts of the exterior walls will be taken out to add the glass box in the front part of the building as a part of the design concept to create a Greenhouse zone. This would bring in transparency, daylight while reducing heating loads for the structure.

The LCA calculations for this project is only the new components added to the building The existing building is thought to have lived its’ lifetime of 60 years and therefore the emissions from the initial building should not be accounted for again.

Design and Access: LCA study Design and Zonning: Energy Strategy:
Atrium

To offset the operational emissions PV panels have been added to the roof

The PV energy analysis made in Revit show coverage 74 building’s energy need This is obtained from 1460 m 2 PV panels installation over the roof. The PV panels both decrease the emissions by generating local renewable energy, also contribute with material emissions The results show an almost 2 5 times increase of the total GHG emissions, hence can be concluede that the biggest contributor from material GHG emissions comes from PV panels.

As an adaptive reuse project, the initial emissions are low as the building has lived its life. For the further additions, care has been taken to do only necessary additions keeping most of the structural components intact. The chosen materials are done based minimal emissions, local availability and maximum reuse potential.

Throughout the project, multiple choices have been made in order to minimize the final operational energy need of the building. Initial temperature and energy analysis were made in the concept stage to find out the potential benefit of glazed atriums in reducing the heating needs of the building.

Energy Analysis: Ground Floor First Floor Second Floor Photovoltics analysis: life cycle assessment (LCA): Planning and Zonning:

Building rehabilitation considerations:

The results show an almost 2,5 times increase of the total GHG emissions for the project as can be seen in the graph to the right. It shows the total emissions by building system and life-cycle stage when the material emissions from the PV-panels are added to the LCA calculations. The results show that the biggest contributor from material GHG emissions comes from the PV-panels. The benchmark results of the scenario that includes the PV-panel emissions.

Material Comparsion

All LCA comparisons are made as a full life cycle assessment of the products meaning that they look at the total impacts of all life cycle stages.

Result:

The proposed design tries to minimizing emissions as a core criteria for choice of design interventions and materials. Another major factor is reuse of the existing structure, which helps significantly reduce emissions.

Renovating the building would lead to only 7 of the emissions compared to the new construction scenario and that is an incredible 93 decrease of emissions.

LCA Result

The Self-Shading Umbrella:

Project year: 2020, NTNU

Project location: Warm-Humid Climate

Project objective:

Warm-humid climate located mostly around the Equator is a unique climate with a seemingly stable, unfluctuating temperature profile and is marked by its high-humidity (upto 90%). Although inhabited by humans for a long time now, the vernacular range of construction here is mostly in small to moderate scale structures, with light construction and varying internal environmental conditions.

Adhering to this understanding, the approach was to morph the form into a self-shading format to acheive internal comfort by preventing heat-gain. This in turn helped to break down the vertical extent into smaller, habitable masses and work with greenery and vegetation to prevent reflected heat-gain while reclaiming lost greens from the ground. Natural ventilation has also been moderated by controlling humidity and avoiding heated winds. Combined, these strategies lend a distinct yet iconic design language to the project which responds to the bio-climatic challenges in this climate.

Site Location: The tower has been located such that the solar gain to the site can be minimised. Placing the tower along the E-W near the Southern edge maximised the building shadow zone within the site, making public access during the day possible

Form Development:
BASE FORM 312kWh/m2 SLANT FORM & DIVIDED VOLUMES 208kWh/m2 OPTIMISED FORM+MATERIALS 92kWh/m2 SIMPLE FORM SEGREGATED VOLUMES TAPERED FORM INITIAL DESIGN FORM 23rd June 22nd Dec BUILDING SHADOW ZONE
Shading Form:
Mximizing solar shade:
Self

volumes with their own public terrace for recreation.

- It gently slopes from the East, West as well as the South to minimize heat gain by generating self-shading.

- The final design stands at an avg of 92KWh/sqm compared to the base cuboidal volume which was rated at 312KWh/sqm

Energy: Residential Floor: Office Floor: Base Model 312 Final Model (with materials and insulation) , 91.79 BASE MODEL FINAL MODEL (WITH MATERIALS AND INSULATION)

Master plan & Infrastructure:

Project year: 2019

Project location: Wolita, Ethiopia

Consultant: MH ENGINEERING PLC.

Role: Site analysis, Master plan

Project objective:

The proposal aim to arrange the fundamental facilities and systems that serve the users of the compound and students at large and utilize the space. It also aim to guide and support the goal and future development of the medical campus alligned to its functionality.

General:

The land covers a total plot area of 11.9 hectars with topography of 6% mainly west to east direction. It serves as the regions medical campus and public referraal hospital.

Findings:

The site has an existing infrastructure that has

- poor road network

- conjested temporary structures

- Shortage of common and green spaces

- Zones lack identity

Proposal:

The proposal looked in to this weaknesses and considered the future goal of the campus to come up with different solutions according to the functionality of different zones.

Existing Functional arrangement Topography of the Site Existing Building Blocks and identifying thier purpose and aplicability in future planning

Design Consideration:

Introducing public and Green spaces

Creating clarity and maximize efficienty of space usage

Standardized roads and networking

Proposed new blocks

Clinic center:

Project year: 2015

Project location: Dessie, Ethiopia

Consultant: MH ENGINEERING PLC.

Role: Conceptual design, design development and material specification

Project objective:

The two floor building proposal is done refering the ministry of health, building regulations and university’s requierment. The primary purpose of this medical clinic is to provide urgent medical attention mainly to students and staffs.

Market center:

Project year: 2019

Project location: Addis Ababa, Ethiopia

Consultant: MH ENGINEERING PLC.

Role: Conceptual design, Preliminary design development

Project objective:

The five storey building is designed to benefit 300 widowed mothers that are not able to sustain their families and are currently being supported by Zer Ethiopia Charity Organization.

Concept Development:

Establishing modern and integrated market centers as part of rehabilitation and ensuring sustainable development for widows and their families.

Wollo University Adminstration:

Project year: 2018

Project location: Dessie, Ethiopia

Consultant: MH ENGINEERING PLC.

Role: Conceptual design, detail making, material and supervision ,3d rendering

Project objective:

The administrative block is designed in such a way that it accommodates the universities administrative staff in one place to facilitate and give organized service to the society. It is indeed the focal point of the compound and is designed emphasizing the region’s ancient architecture to speak for the entire university and region.

Conceptual Development:

As it is one of the higher educational institutes in Amhara region, ancient building characteristic were depicted to represent the civilization in the region.

Accomodation:

The building is designed to accommodate the university administrative staff in one place, it is a five-story building with semi basement. The building incorporates offices, meeting halls, wet areas, recreational areas, kitchenets and circulation areas.

and Planning: Ground flooor plan Semi-basement plan 4th floor plan 1st - 3rd typical floor plan
Design
3Dimensional views Construction images

Science Museum :

Project year: 2016

Project location: Addis ababa, Ethiopia

Consultant: MH ENGINEERING PLC.

Role: Conceptual design, detail making, material, 3d rendering

Project objective:

The project is designed to function as Ethiopian space science museum. Besides it’s main function as a science gallery where it showcase the institutes long in coming it accommodates offices and recreational areas.

Concept Development:

A simplified form of the solar system is used as a design concept where the elliptical shape of the layout of the building is defined by it. Special attention was given to the hight of the building where it does not affect the visual of the observatory telescope in the compound.

Site access: Spatial Arrangement: 3D Rendering
Thank you! E-mail - samrawig@stud.ntnu.no - samrawitkelemework@gmail.com Tel - +47 94720446, Trondheim, Norway

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