ENERGY
ENERGY EFFICIENT DIMPLEX AIR CURTAINS CAN HELP HIT CRC TARGETS
to more efficient units, can offer a fast and easy way to reduce the energy required to maintain a comfortable indoor environment.
W
ith the government’s CRC Energy Efficiency Scheme now in effect, large organisations across the public and private sectors are actively looking for ways to reduce their energy consumption, and Dimplex air curtains can help, by creating a stream of fast- moving air that stops treated air from escaping through open doorways. The scheme, formerly known as the Carbon Reduction Commitment, is mandatory for large organisations and aims to improve energy efficiency and cut carbon emissions by rewarding organisations for reducing energy use. Specifying air curtains, or upgrading them
Doorways can be one of the biggest challenges to heating or cooling commercial premises and air curtains offer the perfect solution, providing an invisible curtain of air to separate internal and external environments when access points are open. They are a relatively low cost yet effective way to increase the efficiency of the whole HVAC system, maintaining comfort and saving energy, reducing whole facility running cost as well as carbon emissions.
Dimplex air curtains are easy to retrofit, as the manufacturer offers both recessed and surface-mounted models. Alternatively, the units can be installed at the same time as the air conditioning or heating system, for a complete effective HVAC solution. To further reduce energy use, Dimplex air curtains are supplied with a built-in Building Energy Management System
(BEMS) interface as standard and they can also be controlled via timers, presence detectors and temperature controls, which together improve the overall performance of a heating or cooling system. For example, efficiency can often be improved by linking the operation of air curtains to other HVAC equipment either directly or via suitable BEMS links to avoid conflicting operation and improve overall system efficiency.
With many organisations now considering how to reduce carbon use, enhanced products and new technology will play an increasingly important role in achieving lower emissions. Dimplex has a full range of air curtains that can all have a positive impact on carbon emissions wherever fitted, from the CAB and DAB ranges installed over doors of 3m or 4m respectively, to the prestigious ARC designer models and heavy duty IAB range for large industrial premises. Tel: 01489 773336
Email:
marketing@dimplex.co.uk www.dimplex.co.uk
First commercial Passivhaus building A
n External Wall Insulation System from Sto forms an essential component of the first commercial building to be certified to Passivhaus standards in England. The principle of Passivhaus – that the building should require no energy for heating or cooling – can only be achieved with walls of a U value of 0.11Kw/m2
. To
achieve this, the solid block walls were covered in StoTherm Classic, a highly effective multi-layered system incorporating EPS insulation and coated with an impact resistant render finish. In this case, the top coat incorporates StoLotusan, a self-cleaning surface designed to keep the minimalist white aesthetic pristine.
The thermal mass of the building is designed to maintain a consistent year- round temperature with a mechanical heat recovery and ventilation system removing excess heat caused by sunshine and the activity of the building occupants. In winter, the large glazed facade provides welcome solar gain which is deflected in summer by the use of a brise soleil system. Additional solar control is provided by the use of automatically
46| SUSTAINABLE FM | AUGUST 2010
controlled external blinds that sit on the South side of the building between the glazing and the brise soleil. The building, situated in Dover, is being certified to Passivhaus standards by the Building Research Establishment. The certification process involves a scrutiny of designs, verified by performance testing once the building is occupied.
The project is something of a personal crusade for developer Terry Hill who became a Passivhaus convert while studying for a Masters degree in Energy in
Building and Architecture. Having visited the centre of knowledge for Passivhaus in Freiberg, Germany, he became convinced that this was the right method to produce buildings that combine an excellent working environment with minimal energy consumption.
The office building incorporates many additional features to improve its green credentials, such as the Sedum roof and rainwater harvesting and solar thermal collection. Email:
info.uk@
stoeu.com www.sto.co.uk Tel: 01256 337602
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