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Le marché chinois des pompes à chaleur en 2023
Bien qu’elle dépende encore fortement du charbon pour le chauffage, la Chine est actuellement le seul marché majeur où les ventes de pompes à chaleur ont augmenté en 2023, alors que...
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2 721 actualités
Cryogenics: Energy Saving for Cryogenic Systems
The Cryogenics Group in the Accelerator Engineering Department of the Accelerator Division of Thomas Jefferson's National Accelerator Facilities has discovered a way of cutting the energy consumption of the compressors involved in cryocooling. The...
Cryogenics: A new cryocooler
A new cryocooler has been demonstrated at the National Institute of Standards and Technology (NIST) that combines small-size, rapid cooling, low temperatures and high efficiency. It is a "pulse tube" design that uses oscillating helium gas to...
Cryogenics: Ed
Ed, a discount grocery operating in France, does not use pallets in dual-temperature trucks to deliver products from its 8 warehouses to its 800 retail outlets. Instead, Ed has opted for a cryogenic refrigeration system combining carbon dioxide...
High-temperature Superconductivity
Groundbreaking findings on high-temperature superconductivity. A superconductor is a material that can conduct electricity with virtually no resistance. The phenomenon was discovered by Kamerlingh Onnes in 1911 and takes place in certain metals...
Phare Tower
Morphosis's Phare (Lighthouse) Tower is to go up in La Défense, France. Thom Mayne, the Design Director, describes the future landmark building as follows: "Moving around the tower, it appears to shift continually, distinct from different vantage...
New solar-cooling technology for cooling-freezing
Refrigeration is often based on compressor technology which consumes electricity. A recently developed system making it possible to achieve relatively low temperatures solely using solar energy has been designed by PROMES, a laboratory working...
Briefs: Superchilling keeps fish fresh longer
Scientists at the Norwegian Institute of Technology SINTEF have found that the superchilling of fish or meat between -1 to -3°C combines the extended life of freezing while retaining the fresh taste that chilling provides; it also reduces storage...
Briefs: Ionic Wind to Cool PCs
Kronos Advanced Technologies are developing a cooling process for personal computers based on an ionic wind pump. Ionic air propulsion is based on a principle called the corona discharge, an electrical discharge characterized by a corona, i.e. a...
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,...
How to evaluate the refrigerating capacity of compressors?
Most compressor manufacturers express the capacity of their compressors using the "nominal capacity" of the motor, expressed in HP (1 Horse Power = 0.735 kW) which does not give precise information on the refrigerating capacity of the compressor....
Announcement for 2007 ASHRAE Refrigeration Awards
Refrigeration Committee awards to be presented at the 2008 summer meeting will be for new refrigeration technology applied in a unique manner. Two awards will be made: - Milton W. Garland Commemorative Refrigeration Award for Project Excellence...
Ozone depletion and global warming
As an intergovernmental organization, the International Institute of Refrigeration (IIR) is invited to attend the annual conferences on the ozone layer (and the Montreal Protocol), on climate change (and the Kyoto Protocol), and to present a...
Trends and Markets: The Dubai District-Cooling Boom
The United Arab Emirates has the potential to become the world's largest district-cooling market: demand is estimated at 10 million tonnes of refrigeration (36 360 MW) in the next 10 years. The construction boom in Dubai has triggered particularly...
Trends and Markets: Turkey: the AC market is expanding rapidly
Thanks to its efforts to achieve EU membership, Turkey has also gained success in its economy: at the end of 2005, it became the 22nd exporter and the 14th importer (90 billion €) worldwide. The HVAC&R industry grew four times more than...
Trends and Markets: India: the retail boom spin-offs
India is positioned as the leading destination for retail investment. This followed saturation in Western retail markets and big Western retailers like Wal-mart and Tesco are entering the Indian market. The USD 412 billion investment which is...
Climate change: The cost of global warming
The Stern Review is the most comprehensive study ever performed on the economics of climate change. According to the report commissioned by the UK Chancellor, pre-industrial level of greenhouse gases in the atmosphere was 280 ppm CO2 equivalents...
Climate change: CERN is to investigate the climate
Besides the Large Hadron Collider project (see "Technology"), CERN is at the forefront of a wide range of other projects including one designed to investigate the influence of galactic cosmic rays on the Earth's clouds and climate: for the first...
Briefs: Changes at ARI
William G. "Woody" Sutton, President of the Air-Conditioning and Refrigeration Institute (ARI) since 2001, has resigned. Stephen Yurek has recently been appointed Chief Operating Officer and General Counsel, and Mark Menzer is now Senior Vice...
Briefs: Danfoss
Niels B. Christiansen has been promoted to Vice Chief Executive Officer of the Danfoss Group. Frederik Lotz has been appointed Executive Vice President and Chief Financial Officer. The President (CEO), Jørgen M. Clausen, intends to strengthen his...
Briefs: DKV
DKV's best annual meeting in years took place in Dresden in November 2006: 100 papers were presented and 720 participants took part. The proceedings CD-ROM can be ordered at info@dkv.org. The 2007...
Briefs: Fill ’er up with hydrogen!
The Linde Group, a corporate member of the IIR, recently inaugurated its Hydrogen Centre in Loohhof, near Munich. The 3-million € centre brings the hydrogen highway system a step closer to an economic reality and will serve as a filling station...
Briefs: Alanco
Alanco Technologies Inc.'s StarTrak Systems subsidiary has a USD 10 million contract for its wireless tracking system and related monitoring services. GenTrak is a GPS-based, wireless monitoring and control system initially used to monitor the...
Out of ordinary: Cryopreservation after death
Cryopreservation after death is catching on, at a price. Cryonics, defined as "the practice of freezing the body of a person who has just died in order to preserve it for possible resuscitation in the future, as when a cure for the disease that...
Out of ordinary: Chilled Medieval Book
A 1000-year-old Book of Psalms has been discovered by a construction worker in Ireland and is now stored in refrigeration at the National Museum of Ireland in Dublin. The book was found in a bog and the tannic acid content of the bog is thought to...
Out of ordinary: Cool Cows Produce More Milk
Cows placed in air-conditioned conditions have been shown to produce 10% more milk. It is also claimed that cows suffer from heat stress at temperatures as low as 22°C. This puts particular pressure on cows raised in hot places such as Israel, but...
