Newsletter Number 85
July 2017
New development brings life to Sydney CBD’s western shoreline has been revitalised and returned to the people in the city’s largest urban renewal project since the 2000 Olympic Games. The 22-hectare site had been used as a wharf since the 1820s, but was abandoned in the late 20th century when changes to shipping technology rendered its role as a commercial container terminal unsustainable.
In 2003, the NSW Government decided to transform the wharves into a new urban precinct known as Barangaroo. The $6 billion project separates the area into three sections for development. Barangaroo Reserve features 6 hectares of parkland planted with 75,000 Sydney natives to replicate the vegetation when inhabited by traditional owners, the Gadigal people. Barangaroo South and Central Barangaroo include a vibrant financial and commercial business hub, over 80 retail outlets, waterfront apartments, a dining precinct and a 6-star hotel. After being closed off to the public for generations, there has been a conscious effort to create public spaces and sustainable options. The Barangaroo Delivery Authority aim to be the first precinct of its size in the world to be climate positive. They will accomplish this by generating and exporting more water than Barangaroo uses; delivering zero waste to landfill, achieving carbon neutrality by generating renewable energy and enhancing the wellbeing of the community. Much of the activity has focused on Barangaroo South where the dominant landmark is International Towers Sydney (ITS) which comprises of three skyscrapers simply named Towers 1, 2 and 3. They rise 217m (49 floors), 178m (43 floors) and 168m (39 floors) into the air and collectively offer 280,000 sqm of office space. Designed by acclaimed architects - Lord Richard Rogers and Ivan Harbour from Rogers Stirk Harbour & Partners, all three towers have been awarded 6-Star Green Star ratings. Inside large adaptable floor plans, generous ceiling
Sydney wharves heights and abundant light help create a sense of spaciousness. Outside there is 6,000m2 of solar panels at Barangaroo South and a 1,200m3 rainwater tank below the underground carpark at Barangaroo Reserve. AG Coombs was the mechanical contractor for Towers 1 and 2. Project Manager Adam Ewers said the biggest challenge was managing the logistics of delivering equipment to a busy site in a central city location. “Fantech supplied a range of fans including in-line axial supply and exhaust fans, kitchen exhaust and essential services fans. We have worked with Fantech for many years and built a solid working relationship. It’s not just their product integrity and knowledge that keeps us coming back, but their strong customer service and reliability to deliver a quality product by the due date.” Mr Ewers said construction on ITS began in late 2010, and opened progressively from July 2015 to December 2016. “It’s a fantastic central location with commanding views over the city and its waterways,” he said. “The development has attracted major tenants and will house up to 23,000 workers when fully let.” Barangaroo South is due to be completed in 2022, with the remainder of the site finished two years later.
“ Barangaroo South, Sydney, New South Wales
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Barangaroo South’s Tower 1
Technically Speaking
The means of converting a free-field measurement to an in-duct measurement is by adding an end reflection coefficient (although this is still less accurate than testing using the in-duct test method).
with Andrew Rossi
In-Duct and Free-Field noise levels
Fan manufacturers can choose to publish either ‘In-Duct’ or ‘Free-Field’ noise levels depending on where the noise is measured. The difference between the two terms is not well understood by many engineers and can lead to underestimation of noise levels.
What is ‘In-duct’ and ‘Free-Field’?
‘In-duct’ noise is a measurement of the sound inside the duct. The International test standard used is ISO5136 (which is identical to BS848-2.5). ‘Free-Field’ noise is a measurement of the sound outside of the duct. The relevant International test standards are ISO13347-1, 2, 3 and 4. Therefore, if the sound power level of a ducted fan is measured outside the duct, it is a free-field measurement.
What is an end reflection?
The sound energy emitted into the duct from fan equipment is not always fully transmitted into a test room. This prevention of the sound energy being transmitted into a room is called an end reflection. Because of this, the sound power measured in the room may be lower than the true sound power of the fan equipment.
ISO13347-1 defines theoretical end reflection coefficients based on different conditions. Where circular duct terminates flush with a wall as per Figure 2, the end reflection coefficients are as shown in Table 1. Frequency Bands Fan Dia . (mm)
63
125
250
500
1000
2000
4000
8000
310
12
7
3
1
0
0
0
0
400
10
5
2
0
0
0
0
0
500
8
4
1
0
0
0
0
0
560
8
3
1
0
0
0
0
0
630
7
3
1
0
0
0
0
0
710
6
2
1
0
0
0
0
0
800
5
2
0
0
0
0
0
0
1000
4
1
0
0
0
0
0
0
1250
3
1
0
0
0
0
0
0
1400
2
1
0
0
0
0
0
0
1600
2
0
0
0
0
0
0
0
1800
2
0
0
0
0
0
0
0
2000
1
0
0
0
0
0
0
0
Table 1: End reflection values based on flush mounted circular ductwork from ISO13347-1.
Note: If duct protrudes into a room (instead of being flush with the wall), the end reflection values will be greater than shown above.
Example using a Ø400mm axial fan.
How should fans be tested?
Fans may be tested to various noise test standards. The series of International Standards are: ISO13347 Parts 1 to 4 and ISO5136. ISO13347-1 2004 “Industrial fans - Determination of fan sound power levels under standardized laboratory conditions Part 1: General overview”. Clause 7.1 states: “If a fan has a duct on the inlet and/or outlet side, then the sound power levels on the sides which are ducted should be determined by an in-duct method as detailed in ISO5136:2003. As an alternative method with a lower order of accuracy, an enveloping surface, sound intensity or reverberant room method may be used with corrections added for the effect of duct end reflection. Where figures are obtained in such an alternative method (e.g. for small duct sizes or for other reasons) then this shall be clearly stated.” Figure 1 and Figure 2 show an example of a Type B installation (Free inlet, ducted outlet) and how an in-duct method (Figure 1) or a free-field method (Figure 2) would be measured.
Duct Fan
Air flow
Duct dB Sound meter
Air flow
Figure 1: ‘In-duct’ noise measurement of a fan to ISO5136. Note that the noise is measured in the duct.
Reverberation Room Duct Fan
Air flow
Air flow
Air flow
Sound meter dB
Figure 2: ‘Free-Field’ noise measurement to ISO13347-2. Note that the duct terminates at the wall inside the room and the noise is measured in a reverberation room. Therefore, less sound energy is measured when compared to the sound level using the In-duct method as shown in Figure 1.
Frequency Bands 63
125
250
500
1000
2000
4000
8000
Free-field Sound Power
58
65
68
69
71
69
61
52
Theoretical End Reflection
10
5
2
0
0
0
0
0
In-duct Sound Power
68
70
70
69
71
69
61
52
In other words if the sound test data for a smaller than 2 metre diameter fan is based on the free-field method, the sound power levels will always be lower than if the same fan was tested using the in-duct method. However, ISO13347-1 warns that with the present ction coefficients state of knowledge the end reflection ever possible are approximate only, and wherever d on test method in-duct sound power levels based ater accuracy. ISO5136 should be used for greater
? Why is this important?
Firstly, if an engineer is comparing ng noise levels nufacturers that on similar fans from different manufacturers uct vs free-field) use different test methods, (in-duct the sound level comparison will be inaccurate. coustic Secondly, when performing an acoustic xpects analysis, an acoustic engineer expects to use in-duct sound power levelss for ngineer fans in a ducted system. If the engineer d on the is unaware that the data is based nalysis free-field method, the acoustic analysis will under predict the noise levelss at the critical low frequencies. As most noise problems with fans occur at the 125Hz se and 250Hz frequency bands, noise problems may be experienced d if free-field sound levels are used in error.
Fans by Fantech Product Selection Program With Stuart Bryson
Hints and Tips
Working with Schedule Export Formats
In the previous tip, we covered exporting fans and silencers from a schedule into a customised Excel file layout that best suited you. You may have multiple schedule formats, such as electrical, acoustic and delivery, and want to ensure all of your colleagues can export their schedules in the same column or row order. In the Schedule Format screen, once you have selected the data types, click Save Format – this will save the format of the export, not the data. You can then reload the format with Load Format, saving the manual task of reorganising the columns to export. If you share the “fsfx” files with colleagues, they can also output their schedules in the same formats. Version 5.4 of the Selection Program can be downloaded from the Fantech website. Remember to use the auto-updater to make sure you’ve got all the latest features.
NZ restructure builds better business for customers When Mark Rickard moved to Melbourne as the new CEO of Fantech Australasia, Fantech New Zealand was presented with an opportunity to restructure the business for further improvements to customer service. During his 8-years as Managing Director of Fantech NZ, Mark revitalised the business taking it to a strong, market leading position.
Vikrant Bhatt
The restructure saw his two leading sales managers – Vikrant Bhatt and Kain Silvester – promoted to Regional Managers of the North and South Island respectively. The two men work closely, sharing information on their regions so that both can learn from each other’s experiences. Kain said the day to day running of both the north and south regions had not changed much. Kain Silvester “However, now that Vik and I are responsible for our regions, we can further improve our We are constantly response times to customers with all the looking to improve information they need to make a decision customer service… and move forward on a project.”
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Vik said he could now see the bigger picture and was more involved with the operational side of the business. “It is vital that we make it easy for our customers to work with us and ensure we have the right stock on hand at all times,” he said. “We are constantly looking to improve customer service and implement changes in logistics to get the product to customers quicker and easier,” Kain said. “We also believe in providing training for staff and customers to raise awareness of new technologies and capabilities that save energy, reduce costs and improve occupant comfort.”
New Science Centre launches new learning
New Zealand’s’ University of Auckland has been rejuvenated with the completion of a new Science Centre (B302) and refurbishment of the adjacent Chemistry building (B301). The improvements are part of a billion-plus 10-year Campus Development Strategy created in 2009. $1 billio
“The Auckland market has been very busy,” Vik said. “We have been working on the Datacom Office Building, TVNZ Building and Auckland Airport, to name a few.” In the South, Fantech continues to lead the way in the rebuilding of Christchurch with major projects including: Hoyts Cinema and Christchurch Hospital.
the required conditions, thereby consuming less energy when the demand for conditioned air is reduced. Furthermore, EC fans do not create an electronic hum at reduced fan speed, and are therefore less of a distraction. They are also easier to install with no need for thermal overloads, shielded cables or Variable Speed Drives,” he added.
The Sc Science Centre was built on the foundations of the original 1960s building and features an 11-storey tower with a total floor area of 23,500m2. It contains flexible workspaces for sharing knowle knowledge as well as specialised research areas and laboratories, formal teaching spaces, drop-in study areas, and offices for academic and professional staff. Technology to increase earthquake academ resistance and to dampen out floor vibration were included along resistan with new ne building systems for greater energy efficiency.
The project posed many challenges as the campus remained ‘live’ with students and academics present the entire time. Peter said it took six months to partially demolish the Chemistry building and this increased the pressure to deliver the Aquahe Aquaheat has worked on several projects at the university and won new chemistry the me mechanical services contract for the new Science Centre. Project Manager Peter Hawkins has worked with Fantech on numerous undergraduate laboratories before project projects and knew that they would deliver a quality product at a good the academic year price. “More “ than 20 Fantech EC fans were installed throughout the started. two bu buildings,” he said. “Being a teaching facility, we paid close attentio attention to the attenuation of noise from the mechanical plant to Nevertheless, minimis minimise disturbance to the students.” Buildings 301 and Fantec Fantech’s North Island Regional Manager Vikrant Bhatt said demand for EC fans was continuing to grow as customers looked for more energy efficient solutions. “In Auckland, the ambient temperature can change significantly throughout the day,” he said. “EC fans are a demand control solution and automatically adjust the speed of the fan to match
302 were successfully completed in 2016 giving students access to a new state-of-the-art learning environment.
Science & Chemistry building, University of Auckland, New Zealand
Product News
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…innovative Mixed-Flow impeller with high performance blade geometry.
with Kerry Dumicich
The quiet achievers New Gamma and Heritage Ultra series
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Gamma Ultra Downflow Exhaust
All Gamma Ultra series units are available with an EC motor for further savings in running costs. On the larger models, the EC motors are a simple ‘plug and play’ system as they can be preconfigured by Fantech with the required parameters. This means the installer doesn’t need to have specialised control programming knowledge.
Fantech’s series of Gamma centrifugal roof units and Heritage vertical exhaust roof units have been The compact and low-profile Gamma extended to include high air flow, low noise Ultra models. Ultra units feature a robust, lightweight construction and come fitted with Fantech’s Ultra series, which also includes the recently released PowerLine in-line range, feature Ziehl-Abegg’s birdmesh to prevent the entry of birds and vermin into the ducting or building. innovative Mixed-Flow impeller with high performance blade geometry. The Ultra series can achieve up to a The inlet geometry and housings of the staggering 30% additional air flow compared to the Heritage Ultra range have been optimised standard model of the same size, without generating to further help improve air flow performance higher noise levels. and minimise noise levels. The increases in The increased air flow of the Ultra series often enables a smaller fan, than the standard model, to be selected to meet the specifications. This has the flow-on effects of reduced capital outlay, lighter weight for installation, lower energy consumption and less noise. Furthermore, a lower noise level may mean that less acoustic treatment is required to achieve target noise levels and building occupants benefit from a quieter working environment.
performance were all verified by performance testing to ISO5801:2007.
Heritage Ultra
The Heritage unit has a durable galvanised steel construction and can be powder coated in a number of colours as an option. The removable windband is fitted with quick-release toggle clamps to facilitate cleaning and maintenance. The Gamma and Heritage Ultra ranges can now be ordered and are available in sizes from 250 to 630mm impellers.
Burra presses forward with new technology
Burra Sheetmetal was established as a standalone business in 1996, where it diversified into high quality steel component fabrication for fans and air handling equipment. In 2010 it was acquired by the Fantech Group who committed to an ongoing investment program that focused on staff training and purchasing the most advanced machinery achinery in the world. Based in Gipp Gippsland ppsland d Vi Vict Victoria, ctor o ia, Burra Sheetmetal metal has become a si sign significant gnifific ican antt employer in the area with 13 qualified ied d bo boil boilermakers/sheetmetal iler erma make kers/sheetmetal workers and a nu numb number mber er of apprentices. s. eetmetal facility y ul ulti tililise sess a range of leading g, high g ly The Burra Sheetmetal ultilises leading, highly tate-of of-t -the he-a artt steel fabrica cati tion on m mac achi hine nery ry ttha h t are used specialised state-of-the-art fabrication machinery that nd fform orm fan comp mpon onen ents and many y ot the herr sh shee eet metal to cut, fold and components other sheet e ra ang nge e of m machiness in incl clud ude: products. The range include: ang n ing g an and d sspinning pinning ng machine, machine e, un uni iquely y cap apab able le • Fan case flanging uniquely capable piec ece e fa fan ca case ses an nd in inlet cones up tto o2 000mm of forming one pi piece cases and 2000mm in diameterr …highly specialised g machine, mach ma chin ine, e c capab ble • CNC rolling capable ild steel up up to 10mm 1 10m 0mm state-of-the-art steel of rolling mild fabrication • PLC controlled automatic lllled ed a u om ut o atic sseam eam ea m welder for accurate neat welding ea and nd n nea eatt we weld lding g machinery… • High definition ion io n plasma plas pl asma ma cutting cut c utti ting machine capable off w working steel plate apab ap able le o orking wi with th sste te eel p pl late up to 35mm • 5 axis, 110 tonne CNC press e CN NC p ress brake folding machine
allowed us to increase our efficiency and lift our output so we could continue to meet demand.” Russell said the turret press is one of the most important tools in the workshop because the components it produces are constantly required. “Our new press is fitted with an energy efficient EC motor, and as a result is a lot quieter to operate, with half the power requirements. It is very precise and is more versatile, with the capacity to handle 1250 x 5000mm sheets up to 6.35mm thick. The new press is very accurate y hig gh and the components it produces are of an extremely high standard standa ard even e eve ven n th thou though ough gh iit’ it’s t’s very ffastt with more hits/strokes per minute,” Russell said. d. “We We e est estimate stimate th the e ca capa capacity paci city ty is about 2. 2.5 5 ti time times mes greater than an tthe he o old dm mac machine achi hine ne m mea meaning eani ning ng w we e can get orders compl plet eted e a nd o ut tto o cu stom st tom omer erss ea er arl rlie ie ier er.” can completed and out customers earlier.” w Ya Yawe weii-Ni Niss sshi hinb nbo o tu turr rret et p press was as c com ommi miss ssio ioned The new Yawei-Nisshinbo turret commissioned December 2016 and dh has as b bee een n wo work rkin ing g continuousl ly in December been working continuously nce ce. ever sin since.
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Production Manager an anager Russell McNally said recently Burra Sheetmetal metal also installed a turret press that is used to cutt and form metal into a range of shapes and sizes. izes. “We needed a machine that
Gamma Ultra Vertical Exhaust
Le efft to Right: Ben Irela e and, n Ash S A Sttrid rid de and Russe ell McNally
A dedicated team
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…committed to cultivating a motivated team environment…
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Fantech’s commitment to customer service and high quality products began with founders Jack Pirie and Glen Harries. From humble beginnings, the two men built a strong foundation in the market, developing new products and providing customers with long term value.
“I started as an internal sales engineer, but now work as an Intelligent Ventilation Solutions Engineer. It’s a different sort of challenge where you need to be determined and have a ‘can do’ attitude to help customers and find the best solution for them.”
This passion for excellence and continual improvement remains a core value in the business today and is driven by every staff member. The entire organisation is focused on product innovation and the emerging needs of the industry. Fantech is committed to cultivating a motivated team environment where staff are fully engaged in the business and recognised for the input, dedication and hard work.
Winner of the Glen Harries Award, Chrystal Smith was also honoured to be chosen. Chrystal is a self-starter who identifies opportunities for improvement and uses her initiative to present possible solutions. “I enjoy the challenge of my role and look forward to continuing my positive work with all the team” she said.
To honour the legacy left behind by Jack and Glen, and inspire others to follow, Fantech Group has introduced three new staff awards. Fantech Group Marketing Manager Frank Cosentino said the awards recognised team members that had excelled in their function, were role models to others, and contributed to the success of the business. “Like their namesakes, the Jack Pirie and Glen Harries Awards recognise motivated individuals that are problem solvers, show creativity in their thinking and demonstrate the highest standard of work. They also show great passion for what they do and often go beyond the call of duty to exceed expectation,” he said.
Fantech Group Fantech Inaugural Engineering award winners Manager Inspire Excellence Award: Kerry Dumicich Kerry Dumicich has been with Jack Pirie Award: Fantech for 22 Hock Lim years and was Glen Harries Award: Chrystal Smith humbled to receive the Inspire re Excellence Award. Kerry is an integral member of the Fantech team who has strong leadership skills, demonstrates an entrepreneurial spirit and champions the collaboration of fellow staff.
Always one to share the accolades with his team, Kerry said: “I think it highlights the fantastic work done by the Fantech Engineering team in introducing a large number of products in a very short period of time. I am fortunate to have a great Hock Lim said it was a great compliment to be the inaugural recipient of the Jack Pirie team who are able to rise to the challenge, think creatively and embrace change.” award. “There are lots of opportunities to grow with the company,” he said.
Kerry Dumicich & Chrystal Smith
Hock Lim
IV Training Program
“Everyone - from graduates through to company directors – wants to know how they can reduce capital costs and save energy,” he said. “The program teaches individuals how to incorporate intelligent technologies into their HVAC system design to achieve greater efficiencies and improve occupant comfort.”
The program commenced early May in Sydney, and was followed with sessions in Melbourne, Brisbane, Perth, Adelaide and Hobart. The program ended late June in New Zealand, with sessions in Auckland and Christchurch. Intelligent Ventilation Product Manager Peter Henry said high attendances ... the industry’s confirmed the industry’s strong desire strong desire to to implement new technologies and the need for further education. implement new
The morning session taught attendees how to design an even-pressure HVAC duct system for the Integrated AirLink VAV System. The afternoon session covered how to design an effective car park ventilation system using EC JetVent Fans, controls and sensors.
Fantech’s Intelligent Ventilation Training Program is helping consultants, contractors, and developers to produce smarter, more efficient ventilation solutions.
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technologies...
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Contact your local Fantech branch about Fantech Training Programs in your state.
Jako Industries celebrate 45 years Returning home after serving two years military service, Vic Jakovich and his brother Peter formed Jako Industries in 1972. “Initially we operated from the family-owned premises, fabricating mechanical ventilation and air conditioning ductwork for various clientele,” Vic said. “Within a year we had moved to a small workshop in Hamilton Hill near Fremantle and the following year, our own newly built 1,200sqm facility in Jandakot.” Today Jako has 72 permanent staff, operating from a new 3,500sqm purpose-built office and workshop in the Jandakot airport precinct. The company is a broad-based mechanical services contractor mainly operating in Western Australia’s industrial and commercial sectors of the building industry. They offer a full range of mechanical services, whether it is for hospitals, commercial buildings, telecommunication, aged care or tertiary institutions.
Vic is proud to be Managing Director of one of the oldest private mechanical contractors in Western Australia. He said it is important to have a high quality professional team of staff as the company can only be as good as the people it employs and their commitment to excellence. “Recently we completed the redevelopment of St John of God Hospital in Murdoch and the new ABC building in East Perth where acoustic performances were very important. Fantech contributed substantially to the success of these projects, providing their service and mechanical ventilation equipment, which enabled us to meet the clients’ requirements and expectations,” Fantech congratulate Jako Industries on reaching their 45-year milestone in the mechanical services industry.
Fabrication, remaining a core part of the business, has evolved over the years to be mostly computerised in the industry. This provides greater flexibility to meet stringent timeframes and greater uniformity.
New ABC building, East Perth, Western Australia
WOULD YOU LIKE MORE INFORMATION? Please send me a copy of the Fans by Fantech Product Selection Program. Please send me a copy of the AirLink VAV System brochure. Please send me a copy of the Rickard VAV diffuser brochure.
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Fantech Contacts
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Visit our website at www.fantech.com.au