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Leading figures in M&E contracting and the ductwork industry make up the expert panel at the recent joint HVCA/ADCAS conference. From left are Bob Towse, head of technical and safety, HVCA; Barry Pollard, chairman, HVCA Ductwork Group; Paul Roxburgh, president, ADCAS; Allan McDougall, managing director, Shepherd Engineering Services; and Professor Rudi Klein, chief executive, Specialist Engineering Contractors’ Group. |
Airing the differences in the ductwork industry
Published: December 2007
The ductwork sector must take advantage of the current healthy state of the market to tackle contractual abuses and poor profit margins. Modern Building Services reports from the first joint HVCA/ADCAS ductwork conference.
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As movers of large quantities of air, air-handling units are responsible for a high proportion of a system’s energy use — so their specification merits close attention to detail and the conditions under which they operate. |
AHUs as the heart of an efficient air-conditioning system
Published: December 2007
Tony Millard highlights how merely meeting the requirements of Part L can jeopardise the efficiency of air-handling units.
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Redefining the performance of inline fans — Xpelair’s XPress range of duct fans. |
Xpelair redefines the performance of inline duct fans
Published: December 2007
Xpelair’s XPress range of duct fans is said to provide very high pressure development, volume and efficiency — enabling significantly smaller ductwork to be used than with conventional inline fans.
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Cutting spiral ductwork on site —Lindab’s SR Cutter. |
Lindab machine cuts spiral ductwork on site
Published: December 2007
Lindab has introduced a machine for cutting spiral ductwork on site. The SR Cutter can be used for all types of spiral ducting within the dimensional limitations, including LindabSafe products.
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Addvent commercial fans are designed for flush installation |
Addvent commercial fans are designed for flush installation
Published: December 2007
Addvent has introduced a range of powerful built-in commercial wall fans for both public and commercial applications. They are designed for a space-saving flush fit into walls and are made of high-impact ABS thermoplastics for strength and durability.
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This Passivent control system for natural ventilation now qualifies for Enhanced Capital Allowances. |
Natural-ventilation controller qualifies for Enhanced Capital Allowances
Published: December 2007
Passivent’s Enhanced Digital Controller for its natural-ventilation system now qualifies for Enhanced Capital Allowances, so that all of its cost and associated installation work can be offset against tax in the first year — rather than at 25% a year on a reducing basis.
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Integrating heat recovery, heating and cooling for a new building at this hospital in Finland into Flakt Woods EU Air-handling units halved the energy consumption of a new building compared to an older one. |
Air-handling units halve energy consumption in Finnish hospital
Published: December 2007
A 50% difference between the energy consumption of old and new hospital buildings at the Turku University Hospital (TYKS) in Finland has been attributed the installation of 50 Flakt Woods EU air-handling units to integrate all energy functions, such as heat recovery, heating and cooling.
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Heat-recovery ventilation for larger dwellings is provided by Xpelair’s Xcell 270 whole-house heat-recovery unit. |
Whole-house ventilation includes heat recovery
Published: December 2007
Mechanical ventilation with heat recovery for larger dwellings is provided by Xpelair Xcell 270 unit. It uses the latest UltraDC technology for reduce energy consumption in operation and increase its life up to fivefold.
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As the air tightness of dwellings increases, so more sophisticated methods of ventilation become appropriate and necessary. The simplest approach is individual fans for the kitchen and each wet room, preferably with energy-efficient DC motors such as Xpelair’s ultraDC (top right), and trickle vents in windows to provide make-up air. Mechanical ventilation units such as the Xcell 150 (bottom right) and Xcell 270 (top left) also provide make-up air and incorporate heat recovery to temper the incoming air. |
The growing need for energy-efficient ventilation
Published: December 2007
Ventilation is essential for buildings. As their energy performance improves, the proportion of energy required to deliver ventilation increases. Joe Barasso discusses strategies for efficient ventilation.
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This Titon trickle vent fits a standard window slot and has an equivalent area of 5000 m2. |
Compact trickle vent meets ventilation requirements of Part F
Published: December 2007
Titon’s Trimvent Select Xtra 5000 trickle vent can be installed in replacement windows to provide the 5000 m2 of equivalent area that is needed in habitable rooms to comply with the requirements of Part F of the Building Regulations and to conform to the best-practice guidelines of the Glass & Glazing Federation.
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