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Chi paga è sempre il compressore! Conseguenze di una cattiva manutenzione del circuito frigorifero.
The compressor always has to pay! Consequences of a refrigeration circuit poorly maintained.
IIR document
Alternative refrigerants for the primary circuit of an indirect commercial refrigeration cascade system.
Limpieza de circuitos frigoríficos para alargar la vida en las instalaciones existentes y mejorar su eficiencia energética.
Cleaning of refrigeration circuits to extend the life of existing installations and improve their energy efficiency.
Process control strategy for ITER central solenoid operation.
Influence of subcooling in R449A supermarket low-temperature refrigeration circuit using medium temperature cooling load.
Application of interleaved circuitry to improve evaporator effectiveness and COP of a packaged AC system.
Development of R290 transport refrigeration system.
Tube-fin heat exchanger circuitry optimization using integer permutation based Genetic Algorithm.
Comparative performance of air-conditioning systems with different refrigerant circuitries in liquid-separation condenser.
Effect of water maldistribution in multi-circuit evaporator on superheat control dynamics of thermostatic-expansion-valve refrigeration system.
Sizing, selecting pumps and circulators.
Reduced order modeling for multi-circuit fin-and-tube heat exchangers with multiple identical circuit types.
Principles of refrigerant circuit optimization in single row microchannel condensers.
Sistema idronico in free cooling. Smaltimento, recupero e riutilizzo del calore proveniente dai condensatori dei frigoriferi.
Free cooling hot-water system. Condenser heat elimination, recovery and re-use in refrigerators.
Optimization of pass arrangements for microchannel heat pump condensers using isobutane.
Refrigeration sector monitoring
12 results
Record: heat pump less than 10 g of propane per kW
German researchers have developed a refrigeration circuit integrating a propane heat pump that achieves a heating power of 12.8 kW with only 124 g of refrigerant.
Reduce refrigerant leaks in supermarkets
Refrigerant leaks are a recurring problem, particularly in the commercial refrigeration sector. An American initiative aims to identify the main causes of leaks and to propose solutions to reduce...
Reclaiming waste heat from ice rinks’ refrigeration systems to save energy
Several studies and recent cases studies show that heat recovery from the refrigeration system is the biggest energy-saving measure in ice rinks.
Low GWP blends for domestic air conditioning
A review article presents the latest research trends on low GWP refrigerants, mainly HFC/HFO blends, for domestic air conditioning.
MIRAI Intex, new corporate member of the IIR!
Presentation of MIRAI Intex and its flagship product: MIRAI COLD 15.
The district cooling network of Paris will be extended by 158 km within 20 years
Paris’ district cooling network currently covers over 86 kilometres and will be extended to 250 kilometres by 2042. It will increase the city's contribution to the carbon neutrality objective by...
The expansion of refrigeration applications of Thermal Energy Storage and PCMs
Based on a selection of papers from two recent IIR conferences, overview of thermal energy storage and PCM applications in the fields of refrigerated transport, display cabinets, fishing vessels, food processing...
Current status and future trends of natural refrigerants in North and South America
Two papers presented at the IIR Gustav Lorentzen Conference perfectly illustrate the interest in natural refrigerants and the obstacles they face in the Americas.
Germany: Blue Angel ecolabel now includes heat pumps and liquid coolers
The 2023 edition of the German “Blue Angel” ecolabel now includes domestic heat pumps and “liquid coolers”.
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.
How to increase market uptake of innovative renewable heating and cooling systems ?
The results of two years of EU-funded research highlight several recommended incentives to motivate the uptake of innovative renewable heating and cooling systems.
Revising A3 refrigerants charge limits to promote wider application
A recent IJR paper examines the validity and form of charge limits for “highly flammable” A3 refrigerants, which constitute low-GWP alternatives to HFCs. Authors propose to eliminate upper charge limits for...
IIR news
5 results
Hot off the press: Handbook on Indirect Refrigeration and Heat Pump Systems
Be the first to read the newly published IIR Handbook on Indirect Refrigeration and Heat Pump Systems.
Add the latest refrigeration publications to your bookshelf!
Check out the latest IIR publications including CO2 as a Refrigerant, Handbook on Indirect Refrigeration and Heat Pump Systems and the 1st IIR International Conference of Cryogenics and Refrigeration Technology (ICCRT 2016).
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.
Member news: latest innovations from Mirai Intex
The company Mirai Intex has just marketed a refrigeration machine using air cycle for low temperatures. Mirai Intex also markets a mobile storage solution.
Member news: Efficient Energy has been rewarded for its remarkable growth over the last 4 years
Energy Efficient, an IIR corporate member, ranked third in the latest Deloitte Technology Fast 50 in Germany. This ranking rewards companies based on the percentage increase in their revenue over the last four...
Encyclopedia of Refrigeration
1 result
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...
