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  • High efficiency AC system for the Grand Théâtre de Rabat

    Four facilities should open in 2018 in Rabat, Morocco, under a gigantic cultural project began in 2010.

    • Publication date : 2017/08/02
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  • Heat exhangers: what's new?

    Nanotechnology: the future of heat exchangers? The US Department of Energy has awarded contracts to improve energy efficiency. One such contract, awarded to TIAX, a technology development company, through the Small Business Innovation...

    • Publication date : 2006/05/05
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  • Residential CO2 heat pump system for combined space heating and hot water heating

    This paper was presented at the IIR Gustav Lorentzen Conference in Glasgow (Sep. 2004). A theoretical and experimental study was carried out for a residential brine-to-water CO2 heat pump system for combined space heating and hot water heating - a...

    • Publication date : 2004/11/24
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  • GL2012 highlights: compact CO2 air-heating heat pump for industrial drying

    Researchers in Japan studied and developed a small capacity CO2 heat pump for industrial drying that is hoped will reduce power consumption to about one third.

    • Publication date : 2012/10/04
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  • New combined CO2 heat pump and solar heating system.

    The Institut für Thermodynamik at the Technical University of Braunschweig (www.ift.tu-bs.de) has developed a new heating system based on a CO2 heat pump connected with a solar storage tank. A...

    • Publication date : 2007/12/03
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  • CHEs in heat pumps

    In its Annex 33, "Compact Heat Exchangers in Heat Pumping Equipment" issued in September 2010, the Heat Pump Programme details the benefits of using compact heat exchangers (CHEs): . Improved heat exchanger thermal effectiveness: thermal...

    • Publication date : 2011/02/07
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  • Heat pumps

    - Analysis of sales of heat pumps in Austria over 2003 and 2004 has shown good growth in the heating and controlled dwelling ventilation segments. The figures were compiled with the National Ministry for Transportation, Innovation and Technology,...

    • Publication date : 2005/07/19
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  • China: new CO2 heat pump standard

    Standard GB/T26181-2010 is for hermetic motor-compressors for household and similar-use heat pump water heaters using CO2 refrigerant, and is expected to accelerate the introduction of new products on the Chinese market.

    • Publication date : 2011/12/22
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  • Markets: Heat Pumps

    - Heat pumps hot in Europe According to the Swedish Heat Pump Association, SVEP, the Swedish market for domestic heat pumps has developed greatly over the last ten years, with over 100 000 heat pumps being sold in 2004. Exhaust air heat...

    • Publication date : 2006/05/05
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  • Markets: Heat pumps

    The French heat-pump market grew 112% in 2006, reaching 53 510 units sold. The sales increase was even greater in Germany, where 139% growth occurred.

    • Publication date : 2008/02/12
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  • 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
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  • Converting waste heat into cooling

    A prototype that has succeeded in converting waste heat into cooling capacity could lead to new solutions to harness excess energy produced by systems.

    • Publication date : 2012/03/23
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  • USA's largest ground-source heat pump

    The conversion of Ball State University in Muncie, Indiana, to a geothermal ground-source heat pump, reportedly the largest project of its kind in the USA, has entered its second and final phase.

    • Publication date : 2012/07/24
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  • Towards a heat pump boom in Switzerland?

    Swiss government aims to install 400 000 heat pumps by 2020.

    • Publication date : 2013/02/18
    • Subjects: Figures, economy
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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...

    • Publication date : 2005/10/26
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  • 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
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  • For IIR members only

    Heat pump stock in Europe

    This table presents the stock of installed heat pumps, the CO2 emissions avoided and the number of jobs in the heat pump sector in Europe.

    • Last update : 2021/12/14
    • Langues : English
    • Themes : Heat pumps, energy recovery: economics and statistics
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  • Nanorefrigerants

    Nanorefrigerants are created by adding nanoparticles in suspension to a base refrigerant. They have a thermal conductivity that is 15% to 104% higher than that of the corresponding...

    • Last update : 2022/06/17
    • Langues : English, French
    • Themes : Nanofluids
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  • 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
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  • 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)
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  • 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 : 2023/06/23
    • Langues : French, English
    • Themes : LNG and LPG
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  • 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 : 2023/06/30
    • Langues : French, English
    • Themes : Ice creams
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  • Global warming potential (GWP) of HFC refrigerants

    Using the latest updated data from UNEP’s RTOC 2022 report, we have compiled the 100-year GWP and 20-year GWP values of hydrofluorocarbon-based (HFC) refrigerants. Our table includes...

    • Last update : 2023/09/15
    • Langues : French, English
    • Themes : HFCs
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  • 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…)
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  • Thermophysical properties of HFC refrigerants

    Thermophysical properties of over 100 HFC refrigerants, including single-component and blends.

    • Last update : 2022/06/17
    • Langues : English
    • Themes : HFCs, HFO et HCFO, Blends
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  • Thermophysical properties of HFO refrigerants

    Thermophysical properties of over 50 HFO refrigerants, including single-component and blends.

    • Last update : 2022/06/17
    • Langues : English
    • Themes : HFO et HCFO, Blends
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  • Thermophysical properties of hydrocarbon refrigerants

    Thermophysical properties of over 20 hydrocarbon refrigerants, including single-component and blends.

    • Last update : 2022/06/17
    • Langues : English
    • Themes : Hydrocarbons, Blends
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  • Cryogenic nitrogen in the food and beverage industry

    The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...

    • Last update : 2023/11/07
    • Langues : French, English
    • Themes : Freezing of foodstuffs
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