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Project
© Eamonn Ryan / RACA Journal
Testo system .
exposure to different temperatures . In one study at pork producer Danish Crown , for instance , sick time off was reduced by as much as 30 % just by using fabric ducting .
“ The other advantage of fabric over metal is its ease of installation . As it ’ s lighter , it can be installed about five times quicker than traditional steel ducting , almost ‘ plug and play ’.
Contrary to traditional metal ducts , the entire fabric ducting works as a diffuser . In metal ducting , the cold air with ΔT = 7-10 ° C is coming out from the diffusers with very high air velocities ( 7- 15m / s ) and creates drafts and hot / cold zones .”
Fabric ducting eliminates drafts and hot / cold zones by uniform air distribution and minimising temperature differences through the occupied area as low as 0.5 ° C .
It is also the more energy-friendly technology on the market ,
as the lower pressure drop , high precision and optimised mixing offered by the fabric ducts consumes up to 40 % less energy compared to conventional metal ducting .
Mitchell notes the system is not appropriate everywhere : “ It is not viable where ducting is required in a ceiling , even though the fabric is fire retardant fire ratings do not permit it . Also , because the fabric ducting is permeable and air emanates everywhere , it can create dust from the ceiling . It also cannot be used externally . It is ideal for the open architecture of a large warehouse or retailers operating from large open warehouse-type premises such as a Builders Warehouse .
“ It is almost maintenance-free – it can be taken down and laundered and many companies simply keep a spare set of ducting and replace them for laundering ,” he says . RACA
“ The EMS system , Saveris 2 , is a Code of Federal Regulations Title 21 Part 11 ( CFR 21 Part 11 ) accredited monitoring system that is suitable for pharmaceutical use and the first installation in South Africa .”
Project name : Nkunzi Pharmaceuticals Warehouse 1 upgrade LIST OF PROFESSIONALS : Owner Developer
Nkunzi Pharaceuticals
Hi Calibre Engineernig Project manager Hi Calibre Engineering Adrian Kelfkens Project Engineer Hi Calibre Engineering Johan Bekker
Consulting engineer
Contractors
HVAC and associated product suppliers
Electrical Mechanical Wet services Civil Main building HVAC & R Wet services Electrical Split Rooftop Packaged unit Fabric ducting Rigid ducting
Hi Calibre Engineering Hi Calibre Engineering Hi Calibre Engineering Hi Calibre Engineering Integrated Building Construction Shamus Rennie Integrated Building Construction Spectrum Engineering Services Dunham Bush FabricAir Shamus Rennie
Environmental Monitoring System Testo South Africa ( Saveris 2 )
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RACA Journal I July 2023 www . refrigerationandaircon . co . za