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3079 results
Ecological alternative for an air-water heat pump.
IIR document
Maldistribution in air–water heat pump evaporators. 2. Economic analysis of counteracting technologies.
Performance evaluation of a large capacity air-water heat pump using propane as refrigerant.
Development of high performance air-conditioning system combined liquid desiccant and R718 centrifugal heat pump.
Flow characteristics of air-water two phase flow in a plate heat exchanger.
Experimental analysis of an air-water heat pump with micro-channel heat exchanger.
Maldistribution in air–water heat pump evaporators. 1. Effects on evaporator, heat pump and system level.
Dynamic model and experimental study of an air–water heat pump for residential use.
Concepts to increase the seasonal coefficient of performance of an air/water heat pump: comparison of costs and benefits.
Characterization of lubricating oil effects on the performance of reciprocating compressors in air–water heat pumps.
Internal reversible ammonia air-to-water heat pump/chiller.
A new ground-coupled heat pump system integrated with multi-mode air-water heat exchanger to eliminate thermal imbalance.
Reversible air-to-water heat pumps: annual performances in residential buildings.
Lubrication of R290 rotary compressor used in low-temperature air-water heat pumps.
Experimental and numerical investigation of a transcritical CO2 air/water reversible heat pump: analysis of domestic hot water.
Refrigeration sector monitoring
293 results
Saving water thanks to air conditioning
Two Houston Universities are tapping into the city’s air-conditioning (AC) systems to conserve water in the midst of a historic drought.
Global air-to-water heat-pump market figures
In 2010, global air-to-water (ATW) heat-pump market demand increased by 24% since the previous year.
Solar panels and a "water battery" to provide chilled water for air conditioners in an Australian university
The University of the Sunshine Coast, in Australia, has announced plans to install a giant "water battery" run by 5,800 solar panels to provide chilled water for air conditioning.
World air-to water heat pumps market
A few figures from the JARN.
How to reuse the condensate water from air conditioners?
Review of the different uses of the condensate water rejected by air conditioners.
An air conditioning system using cold ocean water in Mauritius
The Indian Ocean island of Mauritius has obtained a grant to install an air conditioning system for the inhabitants of its capital, Port Louis, which will use cold ocean water.
World’s largest seawater air-conditioning system commissioned in Tahiti
Thanks to this system, the cold waters of the deep will cool the French Polynesia Hospital Center, saving at least 2.5 million euros of electricity per year.
Air conditioner wastewater purified for human consumption
In Ecuador, Panasonic developed ACH20, a filtering system that purifies air conditioner wastewater and makes it fit for human consumption.
Strong growth of the global ATW heat pump market in 2017
According to JARN, global air-to-water heat pump demand reached 2.66 million units in 2017, 14.8% more than in 2016.
European heat pump market repartition by energy source
Air continues to be the main energy source (more than 85%) used in the European heat pump markets. The aerothermal heat pump segment is dominated by air/air (with heating functionality) and air/water units used for heating and hot water production.
The German market for ventilation, air conditioning, refrigeration and heat pump technology
In 2012, 6,800 water coolers, 110,000 split systems and 37,400 air-to-water heat pumps were sold in Germany.
How about refreshing Parisians with the Seine river water... (in French)
Following discussions between the Snefcca - French national trade union for refrigeration, professional cooking facilities and air conditioning companies) and the Paris City Hall (France), the project to use the non-drinking water network in order...
Air-conditioning and heat-pump market figures in France; January-April 2014.
From January to April 2014, air-to-air heat pumps showed signs of very slight growth (2 to 4 %) whereas air-to-water heat pump sales grew by 23 %.
India is in urgent need of affordable, energy-efficient air-conditioning
With energy demand for cooling in India expected to increase eightfold by 2038, a recent study by the Council on Energy, Environment and Water (CEEW) discusses the country's...
Los Angeles grants new discounts on energy-efficient air conditioners
The Los Angeles Department of Water and Power offers low-income customers rebates on energy-efficient air conditioners.
IIR news
28 results
News from IIR members: Johnson Controls
Johnson Controls and Princess Noura bint Abdulrahman University are beating the record books with York CYK chillers. To construct what is claimed to be the world's largest chiller plant using air-cooled radiators, Johnson Controls is providing 26...
Conference update: Sydney
The 9th IIR Gustav Lorentzen Conference Natural Working Fluids will be held in Sydney, Australia, on April 12-14, 2010. The call for papers and first announcement are now available:
News from IIR members: Danfoss
A pleasant indoor climate and no energy costs. This is what it feels like to live in the Zero+ house - the first home in Denmark that produces more power than is actually consumed. The house supplies its own heating and electricity and generates...
Conference update: Ohrid
The 3rd IIR event in a series, Ammonia Refrigeration Technology was held on May 7-9, 2009, in Ohrid, Macedonia. With 95 participants from 24 countries and 32 papers presented, the event was very successful. A key focus of this series of...
Corporate members: news
- During the IIAR's 2008 Ammonia Refrigeration and Conference, the first fundraising event, a golf tournament, was held in order to launch Ammonia Refrigeration Foundation actions. The recently formed foundation will promote charitable,...
IIR member news: Johnson Controls YORK chiller optimised for R1233zd(E)
The YORK YZ magnetic bearing centrifugal chiller, produced by Johnson Controls, is said to be the first chiller fully optimized for ultimate performance with the low-global warming potential refrigerant R1233zd(E).
News from IIR members: Star Refrigeration
Star Refrigeration has installed a highly efficient Azanechiller at a Scottish meat processing facility. The central pumped glycol system has a total cooling capacity of 365kW and includes pumps with variable speed drives, six ceiling...
New EU funded project began on October 1st, 2021: “SophiA - Sustainable off-grid solutions for pharmacies and hospitals in Africa”
With a budget of 8 million euros over four years, SophiA will develop containerized solutions for hospitals using natural refrigerants, solar thermal and photovoltaics to enable more and more African people to...
IIR member news: Daikin
From 2012 to March 2015, over 3 million units of Daikin’s residential and commercial air conditioners using the “mildly flammable” R32 have been sold in 43 countries.
News from IIR members: Mayekawa
Watch 3 videos on Mayekawa’s Web site: one deals with Mayekawa’s vision and philosophy, another covers activities at its Moriya plant, and the third one presents Mayekawa’s viewpoints on HCFC phase-out.Jan Boone describes the emphasis placed...
News from IIR members: Nestlé
Nestlé is conducting unique research with the Institute for Snow and Avalanche Research in Switzerland (SLF) with a view to identifying the main mechanisms that alter the texture and structure of ice cream.
New IIR Informatory Note on passive cooling
The IIR’s latest Informatory Note demonstrates that passive cooling technologies can contribute significantly to reducing energy demand for air conditioning.
Member news: Latest news from Air Liquide
Air Liquid inaugurates a low-carbon hydrogen production unit and promotes the development of helium refrigeration.
Member news: Mirai Intex releases new high capacity ultra-low temperature refrigeration system
Mirai Intex, corporate member of the IIR, has released a new ultra-low temperature (ULT) system based on air-cycle technology, offering high cooling capacity.
New IIR Informatory Note on thermal energy storage systems
IIR’s latest Informatory Note demonstrates that a well-designed TES system can reduce energy consumption through more efficient equipment operation and lower investment costs, thus reducing the equipment...
Encyclopedia of refrigeration
7 results
Cryogenics in the pharmaceutical industry: drug design and bioavailability improvement
Research activities in the pharmaceutical sector focus primarily on developing novel drug formulations which can elicit the desired response upon being administered to the patient...
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...
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...
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...
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...
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...
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...
Events
1 result
IIR event
14th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning
May 01, 2024 - May 31, 2024
Paris, France
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