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Oil return measurements in a unitary split system air conditioner using different refrigerant mixtures.
Effect of pre-cooler on supply and return air of air curtain in display cabinet.
[In Chinese. / En chinois.]
IIR document
Regional flow motion and heat energy balance analysis of a 10,000 class pharmaceutical cleanroom with secondary return air conditioning system.
Investigation on an improved heat pump AC system with the view of return air utilization and anti-fogging for electric vehicles.
Energy conservation transformation of primary return of all-air air-conditioning system.
Recommended by the IIR / IIR document
Study of oil retention in suction lines with R1234ze(E) and POE32.
Finding the proper position of supply and return registers of air condition system in a conference hall in term of COVID-19 virus spread.
Development of hermetic large-capacity swing compressor using CO2.
Model selection for predicting the return time from night setback.
Numerical investigation and parametric study for thermal and energy management enhancements in data centers' buildings.
Feasibility of controlling heat and enthalpy wheel effectiveness to achieve optimal closed DOAS operation.
Improving temperature uniformity in a large frost-free chest freezer.
Energy conservation in room air conditioner unit by recovering cold energy from condensate.
Review of air flow regimes and thermal comfort in spectators' zone of Qatar Stadium.
Experimental development and investigation of a CO2-based air-to-air heat pump for food drying.
Refrigeration sector monitoring
31 results
Mine cooling
Cooling the world's deepest single-shaft mine: cooling Anglogold Mponeng gold mine in Gauteng, South Africa, is a challenge - the mine is 3.68 km deep and without cooling, temperatures can reach 60°C at the mine face. Six 3.5 MW Eco-Vim...
Out of the ordinary: Keeping clay soldiers (relatively) cool
The largest group of terracotta figures ever lent by China was on display at the British Museum until April 6, 2008. The Chinese government required the 20 warriors to be kept at temperatures of 22°C + 2°C and at humidity levels of 45% RH + 8%, a...
R&D
The US Department of Energy's National Renewable Energy Laboratory (NREL) has developed a new air-conditioning system combining membranes, evaporative coolers and desiccants into a single device with the objective to suit to all climates,...
Briefs: Cryocooling in outer space
MELFI (Minus Eighty degrees Celsius Laboratory Freezer) has been developed for the International Space Station (ISS) under a European Space Agency (ESA) contract for NASA. It is used to preserve biological and scientific samples until they return...
Refrigerant news: Refrigerant shortage
The refrigeration sector is facing a shortage of R134a, employed as a refrigerant or as a component used in the making of R404A. This is due to several factors: a lack of raw materials, the stopping of production of factories in Asia, low...
European heat pump market
The number of heat pump units sold in the European heat pump market increased by 3% in 2013. A total of 769 879 units were sold in the 21 European countries covered by this year’s EHPA report.
Overview of data center cooling technologies
The very huge growth in Internet traffic requires the continued development of new energy-efficient data center cooling technologies, based primarily on liquid...
France: refrigeration (excluding air conditioning) accounts for almost 11% of electricity consumption
According to the CEREN, energy production in the refrigeration sector accounts for 52 TWh in total annual electric energy consumption:
Storing energy thanks to cryocooled air
A new type of energy-storage process that can operate on a large scale.
The French air conditioning market in 2015
According to JARN, the room air conditioner (RAC) market grew 25% year on year in France in 2015 in terms of volume.
Eco-friendly skiing in Spain
Dutch architects working for SnowWorld say they have found a way to build an indoor ski facility with a difference in warm Barcelona.
UK: uncertified persons can buy F-gases for the servicing of MAC systems
The UK government has confirmed that “F-gas” refrigerants can be sold to unqualified persons servicing mobile air conditioning (MAC) systems.
ECOFRIDGES in Ghana: positive feedback from beneficiaries
A recent video updates on the ECOFRIDGES GO programme in Ghana, implemented by the Basel Agency for Sustainable Energy (BASE), UNEP’s United for Efficiency (U4E) initiative and the...
A design for a liquid-nitrogen-powered vehicle engine could provide an alternative to batteries and fuel cells
The engine developed by Dearman Engine Company (DEC), which is driven by the pressure created as liquid nitrogen (LN2) returns to its gas form could provide a way of powering a vehicle without producing CO2 tailpipe emissions but with a longer...
Spanish heat pump market situation
The ratio of heat pumps versus mere air conditioning units sold is bigger than 95% in the residential/domestic sector. In the commercial sector, this ratio is 90% approximately.
IIR news
6 results
Technical visit to the Tokyo fish market
At the ICCC conference last June, attendees had the opportunity to participate in technical visits, including a tour of the Tokyo fish market. Alain Le Bail, President of IIR Commission C2, joined the visit and...
See what's in our events calendar for 2015 !
The IIR’s calendar in 2015 shows a promising choice of events covering cutting-edge refrigeration themes from refrigerants to energy issues; from cold chain sustainability to new refrigeration technologies.
IIR Informatory Notes on refrigerants designed to meet the needs of decision-makers
"We felt it was important to draft a collection of Notes on the most appropriate actions to take in this field, designed to meet the needs of decision-makers in order to be better prepared for the upcoming deadlines."
Obituary: S. Forbes Pearson
Dr S Forbes Pearson, one of the most famous IIR person, passed away. The IIR presents its deepest sympathy and sincerest condolences to his family and relatives.
Energy efficiency on the agenda for discussion during Montreal Protocol meetings in Vienna
Focus on the fruitful workshop on "the energy efficiency opportunities while phasing down hydrofluorocarbons (HFCs)", which preceded the 40th meeting of the Open-ended Working Group (OEWG40) of the Parties to the Montreal Protocol on Substances...
Publish your article in the IJR
Do you have something innovative to say about refrigeration? Find out how you can publish an article in the IIR International Journal of Refrigeration (IJR).
