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With natural air leakage no longer being sufficient to provide adequate ventilation for buildings, achieving good indoor air quality becomes a task for engineers. DAVID STOLTON discusses the issues.
lincoln
Controlled ventilation with low energy consumption is provided in an apartment development in Lincolnshire with a ventilation scheme devised by Passivent and developer Redrow Homes.
schematic
Vortice has introduced a whole-house heat-recovery ventilation system that is said to exceed the requirements of Part L of the Building Regulations. The HRU ECO 3 RF unit is installed in the loft space and has DC motors and a heat exchanger that results in an efficiency of 95%. They are controlled by 3-speed wireless controllers.
How can you minimise the energy associated with achieving good indoor air quality? HARRI ITKONEN shares his ideas.
unit
Modern air-conditioning units can do much more than cool the air, they can also remove all manner of impurities. DAVID MacRAE reviews the technologies used.
Windows
To overcome safety issues of automated windows that are increasingly being installed as part of natural-ventilation strategies for buildings, WindowMaster has developed a control system to avoid fingers and hands becoming accidentally trapped as they close automatically.
Online calculators for duct and room humidification are available on the web site of HygroMatik. These tools are intended to simplify the process of designing and selecting humidification systems for buildings.
Socks
Textile ventilation socks from Euro Air UK deliver conditioned air to digital print company Digital International without draughts and with low cost of ownership. They were selected by consulting engineers J. E. Evans Associates.
Titon
To help manufacturers and installers of windows comply with Part F (ventilation) of the Building Regulations, Titon has introduced a new range of slot vents, Trimvent Select Xtra.
With one of the biggest users of electrical energy in an HVAC system being fans for supplying air, Vince Eade of Jasun Filtration sees an opportunity for reducing their consumption by using more efficient air filters. He tells us that according to research in Germany, fans can account for 18% of the electrical consumption of a building.
Seeley
Seeley International has introduced a controller for its Breezair range of evaporative cooler that can handle up to 10 smart hubs and control up to 41 coolers.
graphs
With the latest Building Regulations specifying low-air-leakage rates for buildings comes the need for controlled mechanical — and, at the same time, the opportunity for energy recovery from the exhaust air to improve the energy performance of buildings even more. CRAIG McFADYEN explores the economic benefits.
Lamps
Halving the energy used by lighting in industrial and commercial buildings is easy. If lighting is responsible for 40% of a building’s energy use, as it often is, the opportunity for a 20% reduction could be staring you in the face. MIKE HARRINGTON explores the possibilities.
Venture
Venture Lighting’s metal-halide lamps have been used to great effect in the improvement of the visual environment for over 1200 people employed at the O2 Call Centre in Bury, Lancs.
Aura
A written guarantee for at 80 000 h of maintenance-free life is provided with a range of fluorescent luminaires from Aura. Greenstock Lamp company is supplying Aura Ultimate long-life fluorescent tubes to sister company Aura Corporation to fit in Superlife versions of its Actulite polarised daylight fittings.
office
Modern approaches to lighting control can be installed at the same time as the lighting, and by the same electrician. COLIN LEGG reviews the options available and their benefits.
office
Focusing too much on reducing solar gain into office buildings will lead to buildings that are unpleasant to work in. People benefit from daylight. HARRY BARNITT discusses how to balance the requirements of Part L and people’s need for good lighting.
Chalmor
With seven channels providing a combination of timed, switching, occupancy and response to changing light levels, Chalmor’s Autolux controller is described as providing the functionality of a high-end lighting-management system for a fraction of the cost. It is also said to be intuitive for end users to operate.
Luxo
New floor-standing luminaires from Luxo combine screen-printed or prismatic glass with a mirror 5 reflector system and cast-aluminium head glass. The option of prismatic glass for Free luminaires increases light output by 20%.
Mercury Recycling is making significant expansion to its recycling services in preparation for the implementation of the WEEE Directive later this year (Waste Electrical & Electronic Equipment). The expansion increase the company’s capabilities in terms of volume, scope of service and geographical coverage.
Danlers
Wireless controllers from Danlers enable lighting to be switched or dimmed and are described as offering a practical solution to complying with Part L of the Building Regulations, especially in buildings where cables are not practical. These controllers can also be used with other electrical loads and are available as hand-held and wall-mounted versions.
PIR
Lighting at Birmingham’s reinvented Fort Dunlop incorporates ceiling-mounted PIR presence detectors from CP Electronics with a special finish.
LED
The use of an LED as the light-source in the flush-mounted JSB Micropoint recessed emergency luminaire from Cooper Lighting makes possible a diameter of just 3 cm. This light source has a life of 60 000 h, and the fitting delivers uniform illumination, making it ideal for coverage of open areas.
surrey
Refurbishment of Surrey County Council’s Quadrant Court offices in Woking has included the replacement of Cat 2 luminaires with a range of fittings from Whitecroft Lighting. They include specially modified versions of Cascade luminaires to meet the needs of the project.
Simmtronic
Simmtronic, which makes fully addressable digital lighting controls for corporate developments, has developed a new hard-wired hub for its proprietary SPECS3 systems driving DALI technology.



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