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  • Ice Gurus

    Ice tailoring appears to be the new Olympic challenge. Ice must be tailored to each athlete's needs, e.g. long-track speed skaters prefer a surface as low as -7 to -8°C, whilst figure skaters need to dig their skates into the ice in order to pull...

    • Date de publication : 05/05/2006
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  • Briefs: CO2 heat pumps in a retirement home

    Villa Laura, a retirement home near Florence, Italy, is equipped with 4 water/water ground-water heat pumps operating with a transcritical CO2 cycle providing heating, air conditioning and hot water. This technology is already used to produce hot...

    • Date de publication : 20/11/2007
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  • Mine cooling

    Cooling the world's deepest single-shaft mine: cooling Anglogold Mponeng gold mine in Gauteng, South Africa, is a challenge - the mine is 3.68 km deep and without cooling, temperatures can reach 60°C at the mine face. Six 3.5 MW Eco-Vim...

    • Date de publication : 28/01/2006
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  • Underground river to cool the London tube

    The "Cooling the Tube" competition in 2003, promising GBP 100 000 to those finding a workable solution to cool the Tube, received 3400 entries. Modern systems with large tunnels and surface lines can be cooled using air-cooling systems. However,...

    • Date de publication : 11/02/2005
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  • Heating and cooling ceilings

    The upcoming translation of European Directive 2002/91/EC on improving energy efficiency in buildings into EU national legislation in January 2006 calls for a clear improvement in the energy efficiency of cooling and heating systems. In view of...

    • Date de publication : 26/10/2005
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  • Solar Air conditioning

    With high summer temperatures, air-conditioning and thermal comfort are increasingly important issues, but raise the challenges of high energy consumption and of environmental consequences. Three recent projects use solar energy to operate...

    • Date de publication : 05/08/2007
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  • Comment réutiliser l’eau de condensation des conditionneurs d’air ?

    Revue des différents usages possibles de l’eau de condensation rejetée par les conditionneurs d’air.

    • Date de publication : 04/09/2020
    • Sujets : Pays en développement
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  • Chillers: efficiency takes off

    Chillers are key refrigerating systems since, according to the Department of Energy, in the US, they account for about 13% of the power consumed by the nation's buildings and 9% of the overall demand for electric power. Examples below illustrate...

    • Date de publication : 25/10/2008
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  • Briefs: A CO2 secondary refrigerant system to test icebreakers

    Travelling through the North Pole's ice-capped seas could reduce sea transport distances between Hamburg and Osaka, Japan, or Shanghai, China, for instance, by more than 4000 nautical miles, thus allowing for great time and financial savings. The...

    • Date de publication : 25/02/2009
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  • Comment refroidir les réacteurs nucléaires du futur ?

    Des chercheurs de l'Institut de technologie de Tokyo ouvrent la voie pour le refroidissement des réacteurs à fusion, alors qu’une percée historique dans le domaine de la fusion...

    • Date de publication : 26/01/2023
    • Sujets : Technologie
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  • Briefs: Heinen

    Heinen claims that its new, compact spiral freezer reduces defrosting time and allows longer production periods without defrosting thanks to a programmable air-cooler rinsing system that sprinkles warm water over the air coolers. Another feature...

    • Date de publication : 26/07/2006
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  • Out of the ordinary: Fed up with warm beer?

    Warm beer at a barbecue got young Kent Hodgson thinking about ways of cooling drinks without lugging around a chilly bin. The 22-year old New Zealand inventor has invented Huski, a device that turns a tepid beverage into a cold drink within...

    • Date de publication : 13/05/2008
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  • Les avantages du refroidissement évaporatif pour l’environnement

    Une étude d’Eurovent montre que le refroidissement évaporatif pourrait permettre d’économiser dans le futur jusqu’à 56.000 tonnes d’émissions de CO2 par an dans l’Union Européenne. Le refroidissement évaporatif est présent dans la moitié des...

    • Date de publication : 30/12/2019
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  • Zero emissions in the desert

    Eckhard Gerber, a German architect, is to build office towers in Riyadh, Dubai and Bahrain that produce all their own energy. The zero emissions office building has arrived! The 68-storey state-of-the-art 322-m Burj al-Taqa ("Energy Tower") in...

    • Date de publication : 20/11/2007
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  • New solar-cooling technology for cooling-freezing

    Refrigeration is often based on compressor technology which consumes electricity. A recently developed system making it possible to achieve relatively low temperatures solely using solar energy has been designed by PROMES, a laboratory working...

    • Date de publication : 04/05/2007
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