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Integrated service modules from SAS are space saving and deliver air-conditioning more efficiently than fan-coil systems. This installation is at Imperial College in London.
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The energy efficient approach to delivering comfort cooling
Published: August 2007
Chilled ceiling and beams deliver comfort cooling with 60 to 70% lower energy use than other systems, which is why John Staunton argues that this water-based approach cannot be ignored.
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Demand-controlled ventilation
Published: August 2007
Monitoring carbon-dioxide levels in a building enables ventilation to be controlled according to occupancy and to maintain indoor air quality — efficiently. Bill McConnell examines the benefits that can be obtained.
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This Vaillant solar thermal installation on a barn conversion will meet over half of the hot-water demand for the building. |
Barn conversion turns to the Sun
Published: August 2007
As part of the conversion of a barn in Pershore, Worcester, a Vaillant solar system has been installed to help meet the demand for domestic hot water. The family for which the conversion was being carried out consulted with Vale Heating, which specified installing a Vaillant solar auroTherm system to provide 50 to 60% of the hot-water requirement.
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Building services, with its demand for cooling and space heating, is one of the major users of motors |
Embarking on an energy-efficiency drive
Published: August 2007
With today’s overriding concerns about energy efficiency, is the building services sector missing a great opportunity to make their buildings more efficient.
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At the heart of a heat-recovery air-conditioning system serving a maternity unit in Poole is this Daikin 14 hp condensing unit. |
Maternity unit enjoys the energy-saving benefits of heat-recovery air conditioning
Published: August 2007
Energy-efficient heating and cooling for a hospital in Poole is provided by a Daikin VRV heat-recovery air-conditioning system.
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Originally designed with no cooling or ventilation, this outpatients area in an east-Midlands hospital is now kept comfortable by a combination of balanced ventilation and EcoCooling evaporative cooling units. |
Evaporative cooling solves hospital over-heating
Published: August 2007
A low-energy approach to reducing temperatures in outpatient waiting areas in an east-Midlands hospital is provided by EcoCooling evaporative cooling used as part of a balanced-ventilation system. A typical EcoCooler rated at 30 kW can reduce electricity costs by over £2000 a year and carbon emissions by 10 t compared to an equivalent refrigeration-based system.
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Using adiabatic cooling to cool outside air which, in turn, cools inside air via a plate heat exchanger is the key to this approach of delivering comfort cooling with a COP of up to seven. It also enables adiabatic cooling to be integrated with techniques such as direct expansion. |
Advancing the art of adiabatic cooling
Published: August 2007
A fresh approach to adiabatic cooling can provide an ideal solution where new or additional comfort cooling is required. Chris Ree explains how.
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Among a range of Passivent natural-ventilation equipment installed in a new primary school in Altrincham are Airscoop units in the main hall. |
Primary school shows the way to a sustainable future
Published: August 2007
Among a range of green-engineering solutions serving a flagship primary school in Altrincham is Passivent natural ventilation. Other features include solar panels, rainwater harvesting and a wind turbine to generate electricity.
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Two separate systems of Clyde condensing boilers provide an efficient approach to meeting the high hot-water loads and low heating loads of a new sports and social pavilion in west London |
Clyde shows its energy-efficiency expertise for new sports and social pavilion
Published: August 2007
Energy-efficient heating and hot water for the new Olympic Pavilion at the Trailfinders Sports Club in Ealing are provided by stainless-steel condensing boilers supplied by Clyde Energy Solutions.
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Toshiba inverter-controlled air conditioning was chosen for its heating capabilities to heat this church in Ireland. |
Air-conditioning equipment is installed for its efficient heating capabilities
Published: August 2007
To provide heating for the refurbished Roman Catholic church in Sligo, Ireland, Toshiba Super Digital inverter wall-mounted units have been installed.
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Thinking Gaia — the same philosophy that is behind the world’s largest solar photovoltaic installation at a Sanyo factory in Japan also underpins developments in air conditioning and hot-water generation.
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Beyond energy efficiency
Published: August 2007
Simply delivering energy-efficient products as its contribution to reducing the threat of climate change was not enough for Sanyo, which has adopted the Think-Gaia concept to direct its future development.
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Exploiting controls to halve lighting energy use
Published: August 2007
Lighting is a major user of energy in commercial buildings — and much of that energy is used unnecessarily. Neil Jones highlights the benefits of controlling lighting.
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