Search results

  • Geothermal heat pumps on the rise

    Geothermal (ground-source) heat pumps (GHPs) are one of the fastest growing applications of renewable energy in the world with worldwide annual growth rate which exceeded 10% over the past 10 years.

    • Publication date : 2012/07/06
    • Subjects: Figures, economy
  • PCM thermal energy storage for indoor environments

    During the IIR PCM 2018 conference which took place on May 21-23 in Orford, Canada, numerous applications of phase-change materials (PCMs) and slurries were presented, including in commercial refrigeration (refrigerated display cabinets), domestic...

    • Publication date : 2018/06/22
  • 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
  • Efficiency of ground source heat pump systems

    Ground source heat pumps (GHSP) have been reported to be more efficient than more widespread air source heat pumps despite higher installation costs. A recent article has reviewed parameters impacting the energy...

    • Publication date : 2021/03/29
    • Subjects: Technology
  • GeoExchange coalition: promoting earth-energy heat pumps

    A coalition for the promotion of earth-energy heat pumps, called the GeoExchange Coalition has been formed in Canada. Five electric utilities formed this coalition in an effort to significantly increase the number of annual installations for...

    • Publication date : 2004/09/14
  • ICR2019: overview of current refrigeration research topics (part IV)

    Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.

    • Publication date : 2019/10/30
  • Market: European heat pump market

    - The European Heat Pump Association (EHPA) has published an updated version of its outlook for the European heat pump market. The report shows that after 2 years of very difficult economic times, the market decline has stopped and heat pump...

    • Publication date : 2011/02/07
  • ICR 2019: an overview of current refrigeration research (part I)

    Presentation of the main scientific and technical topics covered in the papers of the 25th IIR International Congress of Refrigeration and summary of some of the 14 keynotes.

    • Publication date : 2019/09/30
    • Subjects: HFCs alternatives
  • 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...

    • Publication date : 2004/09/14
  • For IIR members only

    Heat pumps : the core technology for sustainable heating

    A recent report by the IEA highlights that heat pumps are essential to reducing the use of natural gas for heating, while improving energy security, reducing emissions and ensuring...

    • Publication date : 2023/01/26
    • Subjects: Environment
  • 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...

    • Publication date : 2004/12/22
  • The high potential of ground-source heat pumps to decarbonise the European building sector

    A potential reduction of 20-40% and 30-50% of energy demand in buildings, for heating and cooling respectively, could be achieved through increased use of geothermal heat pumps. 

    • Publication date : 2022/05/27
  • 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...

    • Publication date : 2007/05/04
  • AC Market in Europe

    According to Daikin Industries Ltd., the European air-conditioning (AC) market has features that could appear as commercial obstacles, including relatively mild climate, even in Mediterranean areas. Concern for cityscape issues leads to resistance...

    • Publication date : 2006/07/26
  • IIR Rankine Conference 2020: Which alternative working fluids for ORC systems?

    HFOs (hydrofluoroolefins), HCFOs (hydrochlorofluoroolefins) and hydrocarbons were the main alternatives to HFC245fa presented during the IIR Rankine Conference 2020.

    • Publication date : 2020/09/04
    • Subjects: HFCs alternatives
  • Hydrocarbon refrigerants

    Hydrocarbons such as R290 (propane), R600a (isobutane) or R1270 (propene/propylene) are low GWP non-toxic natural refrigerants with excellent thermodynamic properties. They offer an...

    • Last update : 2022/06/22
    • Langues : French, English
    • Themes : Hydrocarbons, Containment, refrigerant charge reduction
  • For IIR members only

    Ice cream manufacturing, environmental impact and market data

    From a physico-chemical point of view, ice cream is a complex, frozen multiphase mixture. The manufacturing process includes several stages of freezing which are described in this...

    • Last update : 2022/10/12
    • Langues : French, English
    • Themes : Ice creams
  • Additive manufacturing of regenerators for caloric cooling

    In many areas of engineering, additive manufacturing allows the production of complex and multifunctional products that could not be manufactured using traditional methods. In the...

    • Last update : 2022/09/16
    • Langues : French, English
    • Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)
  • Liquefied Natural Gas: production process and cold energy recovery

    Liquefied natural gas (LNG) is natural gas that has been cooled to about -160 °C and turned into a liquid to facilitate transportation and storage. A typical LNG supply chain...

    • Last update : 2022/06/20
    • Langues : French, English
    • Themes : LNG and LPG
  • Environmental impact of the ice cream industry

    This summary document describes the environmental impact of ice cream manufacturing, which is mainly due to the energy consumption and refrigerants used.

    • Last update : 2022/11/17
    • Langues : French, English
    • Themes : General information on environment (climate change, ozone depletion…)
  • Additive manufacturing of heat exchangers

    In the refrigeration industry, additive manufacturing (colloquially referred to as “3D printing”) makes it possible to fabricate novel, complex and potentially more energy efficient...

    • Last update : 2022/09/07
    • Langues : French, English
    • Themes : Evaporators, condensers and other heat exchangers