Résultats de recherche

Voir tous les résultats dans la base documentaire Fridoc

  • Japon: mise à jour de la loi sur la sécurité des gaz à haute pression (en anglais)

    Depuis juillet 2017, les révisions de ce règlement accélèrent l'adoption de frigorigènes à faible PRP.

    • Date de publication : 02/01/2018
    • Sujets : Réglementation
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  • Une colonne de distillation cryogénique (en anglais)

    Une colonne de distillation cryogénique à haute pression reproduisant un composant clé d'une usine de gaz naturel liquéfié (GNL) a été développée en Australie.

    • Date de publication : 08/08/2018
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  • Production de froid grâce aux cristaux plastiques

    Des chercheurs ont déterminé que les « cristaux plastiques », subissent des variations de températures particulièrement importantes lorsqu’ils sont soumis à des changements de pression. Ces matériaux pourraient être mis à profit pour le...

    • Date de publication : 30/04/2019
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  • Les systèmes d'éclairage pour les entrepôts frigorifiques

    Présentation des différents systèmes d'éclairage pour des entrepôts frigorifiques à température négative. (en anglais)

    • Date de publication : 28/03/2014
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  • Better air in planes - at last!

    A series of technical changes is making it possible to improve the quality of cabin air in airplanes which until now has been invariably dry and poor in oxygen. The reason: the air was derived from the jet engines. This so-called "bleed air" is...

    • Date de publication : 12/02/2007
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  • Development and evaluation of a reversible CO2 residential air conditioning system compared to a state-of-the art R410a unit

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A reversible CO2 prototype RAC split unit system was designed, built and installed in two calorimetric test chambers. The unit is based on the Lorentzen Cycle...

    • Date de publication : 24/11/2004
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  • The heart inspires a new cooling system

    In August 2004, at the Micro Nano Breakthrough Conference in Portland, engineers from Oregon State University in the US, presented a new successful desorption system using branching microchannels. The system was inspired by the human blood pumping...

    • Date de publication : 14/09/2004
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  • Brief: R-723

    The new natural refrigerant blend R-723 presents the same advantages as ammonia (i.e. high specific evaporation heat and insignifigant GWP) and offers further benefits: it can be used in copper systems and offers full mineral oil solubility. R-723...

    • Date de publication : 11/02/2005
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  • Briefs: Thermoacoustics for air conditioning

    The Palo Alto Research Center (PARC), is developing a new form of refrigeration for cooling at room temperature, based on thermoacoustics, which was previously used only for cryogenic temperatures. The technology PARC developed is claimed to...

    • Date de publication : 27/05/2010
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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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  • CO2 Supermarkets

    The journal Die Kälte und Klimatechnik has just produced an article on the opening of a supermarket using refrigeration installations for the first time running on direct expansion CO2 with both medium and low temperatures in Wettingen,...

    • Date de publication : 26/10/2005
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  • Natural refrigerants in emerging countries: South Africa

    South Africa is facing an energy shortage and a rise in electricity prices. Natural refrigerants, which have important energy saving potential, are now being introduced, especially in supermarkets. Here are 2 examples: . GTZ has offered technical...

    • Date de publication : 07/03/2010
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  • US HVACR sector news

    - According to the US Department of Labor (DOL), Bureau of Labor Statistics, heating, air-conditioning and refrigeration mechanics and installers held about 249 000 jobs in 2002 in the US. This sector has the fastest expected growth rate in the...

    • Date de publication : 10/11/2004
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  • 2005 AHR Expo Innovation award winners

    The winners of the third annual AHR (Air Conditioning, Heating and Refrigeration) Expo Innovation awards will be honoured during a ceremony during the 2005 AHR Expo in Orlando, Florida, on February 8, 2005. The product entries were judged for...

    • Date de publication : 22/12/2004
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  • Solar cooling: Plans for air-conditioned stadiums in Qatar

    When Qatar won the bid to host the 2022 football World Cup in December 2010, it came as a surprise. One of the major causes of scepticism was the average summer temperatures of over 40°C with recent peaks at 50°C. But central to Qatar's bid was a...

    • Date de publication : 11/02/2011
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