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  • ICR2007: CO2 in the limelight

    Among the 876 papers presented at the IIR International Congress of Refrigeration in Beijing, 82 were on CO2 as a refrigerant or secondary fluid. Many dealt with new components for CO2, the lack of such components being currently still one of the...

    • Publication date : 2007/11/20
  • Growing uptake of natural refrigerants in commercial refrigeration

    A recent report estimates the number of commercial refrigeration systems using R744 (CO2) or hydrocarbons in Europe and worldwide. 

    • Publication date : 2022/10/17
    • Subjects: Figures, economy
  • Underground storage of liquid CO2

    Dispensing of CO2 by storing it underground usually implies placing it in aquifer rocks deep enough (-800 m) to achieve sufficient pressure to maintain the CO2 in a supercritical (fluid) phase. This approach has many shortcomings as in this form,...

    • Publication date : 2006/11/15
  • 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,...

    • Publication date : 2005/10/26
  • H-fluid as an alternative to HFC-134a?

    The new European Directive 2006/40 on emissions from air-conditioning systems in motor vehicles - which bans F-gases with a GWP higher than 150 (such as HFC-134a) as of 2011 for new models of cars - and Californian legislation which is putting...

    • Publication date : 2006/11/15
  • 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...

    • Publication date : 2004/11/24
  • Briefs: Is air conditioning good for health?

    Air conditioning (AC) could blunt the ill effects of air pollution, according to a recent study by Bell et al. from Yale University, published in Epidemiology in September 2009. The study investigated the short-term effects of particulate matter...

    • Publication date : 2010/03/07
  • Ozone layer issues: Montreal Protocol

    A recent policy article recommends "further adjustments to strengthen the Montreal Protocol and provide further insurance against the threat of abrupt climate change". According to the authors, "the Montreal Protocol's successful work to protect...

    • Publication date : 2007/08/05
  • Alternative Cooling Technologies conference, London, 1st February 2005

    This conference, which was co-sponsored by the UK Institute of Refrigeration and organised commercially by RAC magazine, was well attended with about 140 people present. It was arranged in five sessions. In the first session, speakers from UK...

    • Publication date : 2005/02/11
  • Events: c-dig

    The latest c-dig (carbon dioxide interest group) meeting took place in Lyon, France, on November 3-4, 2008 and was attended by about 40 researchers, compressor manufacturers and industry stakeholders. It gave an overview of the current state of...

    • Publication date : 2009/02/24
  • Brief: controls market boost

    In order to comply with the introduction of energy efficiency legislations and to promote ‘green' solutions, the development of new and advanced products offering enhanced services and monitoring are critical in the European refrigeration controls...

    • Publication date : 2006/01/28
  • 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...

    • Publication date : 2005/12/22
  • Two-phase ejectors: a high potential for energy savings

    Two review papers recently published in the IJR highlight ejectors as a promising solution to dramatically improve the efficiency of vapour compression refrigeration systems and outline the challenges that...

    • Publication date : 2020/11/27
  • Regulations and use of HFCs in the USA

    Under section 608 of the Clean Air Act, it has been illegal since November 15, 1995, to knowingly vent substitutes for CFC and HCFC refrigerants during the maintenance, service, repair and disposal of air-conditioning and refrigeration equipment....

    • Publication date : 2004/09/14
  • Efficient mine cooling

    Bluhm Burton Engineering (BBE) is currently implementing energy management ventilation and refrigeration systems for mines to reduce overall and to manage energy consumption. BBE's Director, Raymond Funnell, has underscored that there is a boom in...

    • Publication date : 2008/05/13