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Thermodynamic analysis of an electrochemically driven chemical looping heat pump.
Energy density enhancement of chemical heat storage material for magnesium oxide/water chemical heat pump.
Comprehensive modeling of a chemical looping heat pump with a reverse fuel cell.
IIR document
Assessment of non-ideal chemical looping heat pump cycle.
Techno-economic analysis for early-stage assessment of chemical looping heat pump technology.
The chemical looping heat pump: Thermodynamic modeling.
Evaluation metrics of electrochemically active working fluids for heat pumping cycles.
Scalability of chemical looping heat pump technology.
Recommended by the IIR / IIR document
Is chemical HFO refrigerants a solution for heat pumps?
3D CFD simulations of acetone hydrogenation in randomly packed beds for an isopropanol–acetone–hydrogen chemical heat pump.
Evaluation of system-level performance of closed strontium bromide thermochemical energy storage systems for space heating.
Experimental development and investigation of a CO2-based air-to-air heat pump for food drying.
Organic Rankine cycles combined with thermochemical heat transformers to enhance the power output from waste heat.
An ammonia-based chemisorption heat pump for cold climate: experiments and modeling for performance analysis and design optimization.
A Methodology and bench design for experimental study of heat pump thermodynamic cycles using CO2 based mixtures.
Refrigeration sector monitoring
10 results
Assessing the market potential of industrial heat pumps in Europe
To address the lack of product development of high temperature heat pumps, a recent article provides manufacturers with an estimate of the industrial heat pump market potential in...
ICR2019: overview of current refrigeration research topics (part IV)
Energy storage, desiccant air conditioning, high-temperature heat pumps and ejector technologies were some of the salient topics of the latest IIR Congress. Continuation of the synthesis of key presentations of ICR2019.
China heat pump market in 2023
Although the country still relies heavily on coal for heating, China is currently the only major market where heat pumps sales grew in 2023, when global sales declined by 3%...
Next generation of working pairs in absorption heat pumps
The history and latest developments in working pairs for absorption heat pumps were discussed in a recent review article.
A strong global compressor market
The almost 12% growth in the refrigeration compressor market over the 2020-2023 period reflects the vitality of the refrigeration sector. Centrifugal compressors and semi-hermetic reciprocating compressors...
Novel desiccant materials for more energy-efficient AC systems
Teams of researchers at MIT and at Texas A&M University have developed novel desiccant materials that could lead to more energy-efficient and economical room air conditioners and...
Road to COP28. Extending the temperature range and application for heat pumps
To promote decarbonation, “high temperature heat pumps should be designed using waste heat and renewables as a driving energy, and environmentally friendly working fluids”, according...
Road to COP28. How can we achieve sustainability in gas processing and liquefaction?
In gas processing plants, focus should be set on non-flaring operation and reduction of releases caused by leaks, says Dr Heinz Bauer, IIR expert....
Europe: the proposal to review the F-Gas Regulation has been published, and the proposal to ban PFAS has been delayed.
At the beginning of April, the European Commission published a proposal to update the F-Gas Regulation . In addition, the proposed PFAS ban has been delayed for six months.
Reducing the environmental impact of ultra-low temperature refrigeration systems
Ultra-low temperature (ULT) refrigeration systems often use very high-GWP HFCs. Yet, ULT systems are excluded from the scope of the regulations aimed at phasing-down HFCs. An IJR paper reviews the most promising...
IIR news
6 results
Heat pumps, the central theme of the recent IIR Congress
An overview of the research carried out in the field of heat pumps, with the aim of achieving greater flexibility and increased energy efficiency, in particular through to the use of thermal energy...
New IIR Informatory Note on high-temperature heat pumps
IRR’s latest Informatory Note demonstrates that high-temperature heat pumps are a key technology in the decarbonisation of process industries.
World Refrigeration Day 2021 reaches every corner of the globe!
This year, seven organisations partnered with World Refrigeration Day to bring to the limelight the exciting career opportunities in fields relying on refrigeration.
Spotlight on Commission B2: at the forefront of refrigerating equipment
Coordinated by the IIR Science and Technology Council, Commission B2 focuses on promoting knowledge of refrigerating equipment technologies and their applications worldwide.
The long awaited ICR2015 is underway!
Held every four years, this year ICR2015 welcomes 1,011 conference delegates from 55 countries, making it a truly global refrigeration event.
New IIR Working Groups focus on core matters in refrigeration
IIR Working Groups (WGs) operate on a temporary basis and bring together specialists to work on projects concerning current technological, social or economic issues linked to refrigeration. Their aim is to promote development, provide knowledge...
Encyclopedia of Refrigeration
4 results
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...
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...
Cryogenic nitrogen in the food and beverage industry
The adoption of cryogenic processes in the food and beverage industry is predominantly driven by liquid nitrogen (LIN), and it is the preferred candidate for food chilling and...
