JS Air Curtains at Hope Uni
JS Air Curtains has supplied a Rotowind air curtain for a revolving door at the Hope University in Liverpool. The air curtain was installed by M&E Contractor, HE Simm, and is helping to maintain internal temperatures, keeping students and staff warm at the new Registry Building at the Hope Park Campus.
Although revolving doors offer some protection from the outside elements, they also act like a slow moving fan, dragging in cold air with every rotation. An air curtain following the contours of the internal curve of a doorway prevents this cold air from entering the building.
The Rotowind air curtain installed by HE Simm at Hope University was a black 1.5m unit with an electrical heater capable of providing up to 22.5kW.
The Rotowind can be supplied in any RAL colour or stainless steel and is suitable for doorways up to 3.5m high. It is available in three different formats to
accommodate different styles of revolving door. A Door-Internal unit is mounted above the door and blows warm air into its inner sections. A Room-Side unit is also mounted above the door but blows across the room-side opening, and a Room-Side External unit that blows across the room- side opening but is mounted on the inside of the building rather than above the door. Every air curtain is tailored to the dimensions of the revolving door in question. JS Air Curtains liaises with the door manufacturer and designs each Rotowind to perfectly match the contour of the door model.
Heating can be supplied with an electrical heater or low pressure hot water. Air-only models are also available. The Rotowind incorporates low noise centrifugal double inlet fans driven by an external rotor motor with built-in thermal protection, capable of delivering up to 6,475m³/h of air. The unit comes with a
Supersonic start for Coolair’s move into commercial heating
Coolair Equipment Limited is now offering unique commercial heating products that will help the majority of buildings achieve renewable energy targets with more ease, reliability and flexibility than any other alternative renewable technology including biomass boilers.
The range of VRF (Variable Refrigeration Flow) heating-only products from manufacturer Mitsubishi Electric, is modular; making it ideal for new-builds, but it can also be retro-fitted to existing buildings and will work independently or alongside other heating systems. Coolair is a Business Solution Partner for the manufacturer and the launch was celebrated at a special event held in the shadow of Concorde at the dedicated conference centre at Manchester Airport. 65 Coolair customers were given presentations by both Coolair and Mitsubishi Electric staff before being shown around the historic supersonic aircraft.
“Concorde radically changed the way we thought of air travel and this new range of heating-only VRF systems changes the way we think about heating,” explained Coolair Manchester Office Manager, Miles Gorton. “By using advanced heat pump technology it can provide radiant heating, warm air, sanitary hot water, or a combination of all three and is also more flexible and requires less maintenance than almost any other renewable technology.”
14 energy solutions
Gorton is convinced that the development of VRF heating-only systems by Mitsubishi Electric opens up the boiler room to heat pump technology in a whole new way and presents a serious challenge to gas, oil and even biomass boilers as the future of commercial heating. “The advances made in heat pumps over the past decade place VRF technology in a strong position to capitalise on the demand for lower carbon heating,” he added. Figures published by the Department of Energy and Climate Change last year* show that hot water and heating account for around 55 per cent of the energy used in the commercial properties. For anyone looking to reduce energy in buildings this an obvious place to start.
Most Local Authorities have already introduced the need for renewable energy in commercial properties as part of the planning process, so anyone building new premises or undertaking any major refurbishments now needs to demonstrate that these properties are using renewable energy. Larger organisations now also face the UK’s first mandatory carbon emissions scheme which places even more emphasis on energy use. Heat pumps have the ability to harvest free, renewable energy from the air or ground, so they are classified as renewable technology by both the European Union and the UK Government. This makes them a serious challenger to
other renewable systems such as solar thermal, wind turbines, photovoltaic, MicroCHP, and biofuels.
“In our view though, these other technologies face limits to their use for one reason or another,” says Gorton. “For the majority of situations, install costs, or the limits in renewable capacity restrict where they can be used. Even biomass boilers are not without limits as few appreciate how much space is required for secure fuel storage and regular fuel delivery, or how often they need maintenance to keep them working efficiently.”
In contrast, the installation of VRF heat pump heating is straightforward and they have been designed to supply sanitary water at 70°C, water for radiators and underfloor systems at 45°C or warmed air for a ducted supply system. Installing VRF heating systems will already help a building achieve today’s and tomorrow’s renewable energy targets, reduce emissions, lower running costs and increase control and comfort.
www.coolair.co.uk
*Source: Department of Energy and Climate Change - secondary analysis of data from the Digest of UK Energy Statistics and Building Research Establishment 2009. Building & Facilities Management – July 2010
five speed controller and 20m of plug and play RJ45 electrical cable.
Additionally it can be connected to a BMS.
JS Air Curtains supplies an extensive range of air curtains, as well as bespoke solutions, for all commercial and industrial applications. If required JS’ in-house project management division also provides a smooth, hassle-free installation service that walks the customer through from design specification to post-installed product training.
Email:
sales@jsaircurtains.com www.jsaircurtains.com
HVRAC
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