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  • Latest research on ammonia-based absorption refrigeration systems

    A recent article has reviewed literature on absorption chillers that use ammonia as a refrigerant, along with water (H2O), lithium nitrate (LiNO3), and lithium nitrate + water...

    • Publication date : 2021/02/25
    • Subjects: Technology
  • New energy-efficient way to make ammonia

    The traditional way of manufacturing ammonia leaves a huge carbon footprint. An Australian team of researchers have found a cheaper and greener way to make ammonia from air, water, and renewable electricity....

    • Publication date : 2021/02/08
    • Subjects: Environment, HFCs alternatives
  • Guide 2013: Natural Refrigerants - Market Growth for North America

    The new Guide 2013: Natural Refrigerants - Market Growth for North America gives an overview of the status of ammonia, CO2, hydrocarbons, water and air as refrigerants in various sectors (food chain, city & buildings, transport, and industry...

    • Publication date : 2013/05/06
  • Briefs: Sustainable fishery in Namibia

    Since November 2009, Hangana Seafood has a new pre-sorting facility in Walvis Bay harbour, Namibia, which uses ammonia as a refrigerant. The 2800 m² sorting facility has a 0°C chill room for holding unsorted fish, two 16°C temperature-controlled...

    • Publication date : 2011/02/04
  • CO2 applications: First hospital catering facility refrigeration system to run with CO2 in the UK

    A CO2 unit supplied by Green & Cool has been installed and commissioned by CCS Refrigeration, through Aggora on behalf of Medirest to provide for the on-site catering requirements of patients, restaurant and hospital staff at the Homerton...

    • Publication date : 2011/02/07
  • 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...

    • Publication date : 2007/11/20
  • Briefs: A comeback for Einstein’s fridge?

    Scientists at Oxford University have rebuilt one of Einstein's early inventions in an attempt to develop an environmentally friendly refrigerator that runs without electricity. They have built a prototype of a fridge patented in 1930 by Einstein...

    • Publication date : 2008/10/25
  • 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...

    • Publication date : 2005/10/26
  • Sorption chillers

    Sorption chiller technology is rapidly developing, especially that using solar energy. - As highlighted by Jacob and Kohlenbach* during the latest IIR Gustav Lorentzen Conference on Natural Working Fluids in Sydney, in Europe, numerous new...

    • Publication date : 2011/02/07
  • Briefs: A CO2 secondary refrigerant system to test icebreakers

    Travelling through the North Pole's ice-capped seas could reduce sea transport distances between Hamburg and Osaka, Japan, or Shanghai, China, for instance, by more than 4000 nautical miles, thus allowing for great time and financial savings. The...

    • Publication date : 2009/02/25
  • 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
  • Capturing CO2 thanks to refrigeration

    Intensive research into capturing the CO2 created in fossil-fuel-based electricity production has been carried out for several years by Alstom. One of the technologies used is post-combustion separation using a solvent (amine or chilled ammonia)....

    • Publication date : 2008/02/12
  • 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...

    • Publication date : 2010/03/07
  • Briefs: Optimized freight hub

    A new temperature-controlled freight hub in Christchurch International Airport, New Zealand, was opened by Hellmann Worldwide Logistics on March 12, 2009. "The facility has been predicated on environmental, efficiency and energy-conscious criteria...

    • Publication date : 2009/05/18
  • PCMs and ice slurries: PCMs: two recent applications

    Phase-change materials (PCMs) can provide thermal storage which means that they can absorb thermal energy when they solidify and release it when they melt. This can be very useful to dampen temperature swings. PCMs are usually water-based and are...

    • Publication date : 2007/02/12
  • 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
  • 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
  • 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