Résultats de recherche

Voir tous les résultats dans la base documentaire Fridoc

  • Stratégies de réduction du bruit des compresseurs à vis

    Le bruit émis par les compresseurs à double vis en fonctionnement est un problème important qui est susceptible de limiter leur champ d’application. Deux articles récents de la RIF proposent plusieurs méthodes...

    • Date de publication : 31/05/2021
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  • New NIST screening method for refrigerants

    Researchers from the US National Institute of Standards and Technology (NIST) developed a computational method to identify candidate low-GWP refrigerant fluids. The method identified 1234 promising low-GWP chemicals among 56 203 considered.

    • Date de publication : 20/11/2012
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  • Ohrid conference highlights: ammonia refrigeration in China

    Over 92% of Chinese cold stores have adopted ammonia as a refrigerant. According to Jianji Zhang, series reciprocating compressors are currently the most widely used due to low cost and availability of spares, but screw compressors which have...

    • Date de publication : 21/08/2013
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  • Trends and Figures: Chiller market grows and diversifies

    According to reports published during the 2008 AHR Expo held on January 22-24, 2008 in New York, the chiller market in 2006 was USD 2 billion in Asia-Pacific, USD 1.5 billion in Europe and USD 1 billion in the US. The growth (as compared to 2005)...

    • Date de publication : 13/05/2008
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  • Scroll compressors offer top efficiency

    Scroll compressors offer top efficiency The Taiwan-based compressor manufacturer ChynTec International Co. Ltd. published an article earlier this year offering a synthetic comparison of the general performance of reciprocating, scroll and screw...

    • Date de publication : 22/12/2005
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  • Le marché mondial des compresseurs frigorifiques

    Although penalized by the Covid-19 pandemic which has strongly impacted the air conditioning sector, the compressor market has grown in certain areas such as the cold chain, the pharmaceutical industry and data...

    • Date de publication : 29/04/2021
    • Sujets : Chiffres, économie
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  • Marine refrigeration

    The use of natural refrigerants is gradually spreading. Here are two examples of their use in the marine sector: - Environmentally-friendly fish transport American Freedom is one of the world's largest refrigerated ships and can hold up to...

    • Date de publication : 20/11/2007
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  • Compressors: key trends

    Over the past few years, the design and performance of rotary, reciprocating positive displacement and dynamic compressors have been greatly improved. CO2 compressors have conquered new niches and twin-screw compressors are now increasingly used...

    • Date de publication : 26/10/2005
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  • Markets: Chillers

    According to a recent market report by BSRIA, an estimated 200 400 units of chillers were shipped worldwide in 2004. The estimated number of centrifugal chillers was 8500 with the USA at the centre of production (3500 units equal to 41% of the...

    • Date de publication : 28/01/2006
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  • Le marché mondial des compresseurs est florissant

    La progression de près de 12 % du marché des compresseurs frigorifiques sur la période 2020-2023 traduit la vitalité du secteur du froid. Ce sont les ventes de compresseurs centrifuges et de compresseurs à...

    • Date de publication : 26/04/2024
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    Compresseur

  • World AC and compressor trends

    In its recent report, JARN estimates that the HVAC&R market in 2006 was about 66 billion USD and about half of sales were air conditioners and related products. - Regarding the AC market, China, the US, Japan and major European countries make...

    • Date de publication : 04/05/2007
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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: Largest distribution centre in Africa

    The centre, built by Woolworths in Midrand, South Africa has a surface area of 72 000 m². The 2-stage refrigeration system uses 4.2 tons of ammonia. It operates at -9°C/+32°C on the low stage while the high-stage ammonia circuit is used to chill...

    • Date de publication : 12/02/2008
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  • Briefs: Grenco Marine

    Grenco Marine has developed the first ammonia/carbon dioxide cascade systems to be used on board fishing vessels. Experience with the Dirk-Dirk (a trawler with a capacity of 235 tons of fish/day) led to the development of a new defrosting process:...

    • Date de publication : 26/07/2006
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  • Briefs: Magnetic-levitation bearing system

    The world's first large tonnage magnetic-levitation bearing air-cooled chiller for air conditioning is being installed in the American Embassy in Tokyo. The 2520-kW chiller plant consists of 12 MagLev Chiller modules. OBO, which installed it,...

    • Date de publication : 04/05/2007
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