August

Exploiting the energy-saving potential of modern air conditioning

14 August, 2005

The scope for reducing the annual energy consumption of air-conditioning systems is some 45%. ANDREW KEOGH discusses a whole range of opportunities.

Why every problem needs a different solution

14 August, 2005

Prescriptive regulations for boiler plant in commercial buildings will not always lead to the most efficient heating system being installed. There are many factors to be considered, as GRAHAM WILLIAMSON explains.

Variable-speed drives combine better environment with lower energy use

14 August, 2005

Building-services engineers have fought shy of installing variable speed drives or inverters in the past, but GUY KENNETTsays that their apprehensions are based on older technologies. He also admits that few drives engineers have taken the trouble to understand the needs of environmental installations.

Giacomini brings its approach to comfort to the UK

14 August, 2005

Comfort technology based on radiant heating and cooling is more energy efficient than just controlling air temperature, according to a major Italian company, which is now bringing its underfloor heating technology to the UK.

Combining air conditioning and passive ventilation into an energy-efficient solution

14 August, 2005

Air conditioning and passive ventilation both have important contributions to make to the comfort of buildings. Now those contributions have been combined and increased by two companies working together to exploit the benefits of mixed-mode cooling.

Responding to hot summers and legislation

14 August, 2005

More hot summers, financial and regulatory pressures of increasing energy prices and the political determination to improve energy efficiency are all problems that can yield to the capabilities of intelligent building-management systems. TED SCHEIDEGGER explains.

Portsmouth care trust teams up with Keston Boilers

14 August, 2005

As part of efforts to reduce fuel bills by Portsmouth City Teaching Primary Care Trust Estates & Facilities Services, Keston Boilers is supplying equipment for heating and hot-water requirements. The scope of projects includes special-needs care home, day hospitals and health centres.

MHS Boilers meet efficiency demands of Gatwick Pier 6

14 August, 2005

To help meet requirements for maximum heating efficiency with low emissions for the new Pier 6 development at Gatwick Airport, NG Bailey has installed Ultramax gas-fired condensing boilers from MHS boilers. To meet the fluctuating heating requirement of this project, the heat output of these boilers is fully variable down to 25% of full output.

Examining the benefits of variable-speed drives

14 August, 2005

Danfoss has prepared a CD-ROM that provides comprehensive guidance on the control and application of AC drives in the HVCA sector. HVAC Planet is available free and supersedes the HVACity CD.

DHW with condensing efficiencies

14 August, 2005

To help building proprietors and managers comply with legislation on the energy performance of buildings and carbon-dioxide emissions, Andrews Water heaters is continuing its development of condensing technology.

Underfloor heating is key part of £50 a year home-heating scheme

14 August, 2005

Such is the use made of renewable energy sources in a 420 m2 home in Gloucestershire, that a Hepworth Hep2O underfloor heating and domestic-hot-water installation is expected to have total running cots of £65 a year, Heating costs are calculated at £50 a year, with a further £15 for hot water.

Free cooling is key feature of Airedale Ecotel cooling units

14 August, 2005

Airedale has added compact 5 and 6.5 kW models to its Ecotel Indoor range of packaged, free-cooling for telecom exchanges, base stations, cabins and shelters, as well as ISPs and computer rooms.

Know the rules — new trends in electrical testing and inspection

14 August, 2005

Ensuring that electrical installations in commercial buildings comply with regulations requires a planned programme of inspection and testing. ANDRE DUFAYE outlines what is involved.

Explaining the need for higher short-circuit ratings

14 August, 2005

The changing nature of electrical installations is reducing their natural impedance, so that higher short-circuit currents occur. DAVID PITT and CHRIS SMITH explain the consequences.

A design-conscious alternative to box profile trunking

14 August, 2005

Concealing electrical cables is either messy work or lacks elegance. DAVE MILBOURNE explains another approach.

Protecting data cables against electromagnetic disturbances

14 August, 2005

How much protection against electromagnetic interference does data cabling need? MATTHEW WAYS explains describes how independent tests confound common sense.

Cooper Lighting is on the right tracks

14 August, 2005

Pacemaker high-bay luminaires and Tufflite luminaires have been supplied by Cooper Lighting & Security for the maintenance deport of the Nottingham Express Transit tramway. This is the first tram service to operate in Nottingham since 1936 and carried 8.4 million passengers in its first year — well ahead of target.

Making the right connection in lighting installations

14 August, 2005

Ex-Or has expanded its Connect range of purpose-designed connection systems for lighting installations with the launch of Connect Ultra-Lite.

Stainless-steel conduit and fittings range extended

14 August, 2005

Armorduct has expanded its range of stainless-steel conduit and fittings for use in kitchens, food factories, health-car facilities and laboratory environments.

Distribution board enhances contractor safety

14 August, 2005

A new range of electrical distribution boards from Schneider Electric incorporates features to avoid installation errors.

Pluggable electrical installation systems from Wieland

14 August, 2005

Over 5000 electrical components are covered in Wieland Electric’s new building installation catalogue. They are part of the Gesis system, with all components from the distribution unit to the consumer device being plug-in

Merlin shows it has a big heart

14 August, 2005

To provide power for a mobile cardiac catheter laboratory at Aberdeen Royal Infirmary, power support company Merlin Power Management delivered a 200 kVA standby generator overnight.