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IIR document
Data driven assessment of a small scale evaporative condenser based on a combined artificial neural network with design of experiment approach.
Rendimiento energético del almacenamiento en frío.
Cold store energy performance.
Le glissement de températures impacte les performances.
Temperature glide affects performances.
Performance analysis of small refrigerating regenerators.
[In Chinese. / En chinois.]
Glissement de la température et impact sur la déclaration de performances.
Refrigerant glide and effect on performances declaration.
Glide dei refrigeranti e impatto sulla dichiarazione delle prestazioni.
Kältemittel mit Temperaturgleit und Auswirkungen auf die Leistungsangaben.
Experimental research on refrigeration performance of quick freezer.
Estudo experimental para a melhoria do desempenho de um frigorífico solar.
Experimental study to improve a solar refrigerator performance.
Investigation on performance of ejectors with adjustable nozzles.
Performance evaluation of an active magnetic regenerator for cooling applications. 1. Experimental analysis and thermodynamic performance.
Un système en cascade à ejecto-compression performant.
A performing ejection and compression cascade system.
Performance investigation on electrochemical compressor with ammonia.
Performance of hybrid refrigeration system using ammonia.
Modular heat pumps: energy performance.
Refrigeration sector monitoring
362 results
Promising performances for a PCM used in refrigerated transport
British and Chinese scientists collaborated to develop a refrigerated container which can keep the inside temperature between 5 and 12°C for up to 120 hours.
Performance comparison of R1234yf and R134a
A study published in Applied Thermal Engineering compares the performance of HFC-134a and HFO-1234yf as drop-in alternative in automotive air conditioning systems.
Not-in-kind cooling technologies performance comparison
This study proposes a quantitative comparison of refrigerants and system performance of not-in-kind cooling technologies.
Heat exchanger design can improve the performance of PCMs
According to a recent review article, optimising the design of heat exchangers in latent heat thermal energy storage systems (LHTES) is one way of improving the thermal conductivity of phase change materials...
Use of ejectors for performance improvement in CO2 commercial refrigeration systems
Expansion work recovery by means of a two-phase ejector is an attractive option for improving the efficiency of CO2 commercial refrigeration systems. Transcritical CO2 systems have relatively large throttling loss, meaning that they offer the...
Nanotechnology based approaches to increase the performance of HVAC systems
EnE-HVAC, or Energy efficient heat exchangers for HVAC applications, is a collaborative project funded by the EU to achieve significant energy savings in future HVAC systems via new and innovative technologies.
A new software to track and analyze cold chain performance
ShockWatch, a provider of supply chain monitoring, introduced the web-hosted TrekView Data Management System (DMS) to make monitoring temperature-sensitive products easier.
Impact of failures on the performance of refrigeration systems
An Australian study assesses the impact of failures of different refrigeration systems on their performance. Various air conditioning systems, refrigerated display cabinets and walk-in cold rooms were put to the...
New heat pump life cycle performance assessment tool
The Air-conditioning, Heating and Refrigeration Technology Institute (AHRTI) developed a tool to calculate Life Cycle Climate Performance (LCCP), using Microsoft Excel.
Performance of R32 and R290 as alternatives to R22 and R410A in domestic air conditioning
According to the authors, regardless of the capacity difference, R290 could be considered as the most appropriate substitute in air conditioners with small finned tube heat exchangers
Purdue highlights: R410A “drop-ins”performance
According to a paper presented at Purdue in July 2016, two new “drop-in” alternatives to R410A are said to have exhibited very similar performance in experimental tests. This paper will be available in Fridoc in te near future.
R452A performance and environmental impact in refrigerated transport
A paper presented at the IIR ICCC conference in China provides a review of R452A properties, system performance and LCCP impact as an alternative refrigerant in refrigerated transport.
Improving the energy performance of cold stores
During ICCC2013, J. Evans presented results of surveys and audits which aimed at collecting data on the energy use in various types of cold stores.
Household refrigerators: HFO performance as drop-in replacement for R-134a
During the IIR co-sponsored International Refrigeration and Air-conditioning Conference at Purdue in 2012, K.M Karber et al. from Oak Ridge National Laboratory, United States, presented* the results of a performance test on R1234yf and R1234ze,...
IJR highlights: impacts of refrigerant charge on system performance
A team from Purdue University recently published* in the International Journal of Refrigeration a study showing the impact of charge level on capacity and efficiency for several heat-pump and air-conditioning units tested at various refrigerant...
IIR news
97 results
IIR Working Group publishes Guidelines for Life Cycle Climate Performance
The Guidelines for Life Cycle Climate Performance (LCCP) provide a harmonised method to calculate the LCCP for all types of stationary air conditioning, heat pumping and refrigeration systems.
Discover the 32nd IIR Informatory Note on the “Harmonization of Life Cycle Climate Performance Methodology”
This Informatory Note summarises the LCCP guidelines prepared by the Working Group. It provides recommended assumptions and data sources for different types of units, presents the various existing LCCP tools and outlines usages and limitations of...
Catch up on the IIR Working Group on LCCP evaluation in Chicago
IIR Working Group on Life Cycle Climate Performance (LCCP) evaluation continues to make impressive headway.
Book your spot! Training session on food refrigeration systems
From July 1 to 5 2024, Professor Don Cleland will be leading a training workshop in London entitled “Cost-Effective Refrigeration”.
New IIR Informatory Note. Low-GWP Refrigerants: Status and Outlook
The latest IIR Informatory Note outlines the options available for low-GWP refrigerants and their respective performance. It provides a series of recommendations on refrigerant...
Check out the latest news from FRISBEE!
In this issue two hot topics: the test carried out to increase refrigerator performance and field test monitoring of the food cold chain in European markets.
New in our Encyclopedia: additive manufacturing for refrigeration equipment
Additive manufacturing makes it possible to optimise the geometry and performance of cooling components such as heat exchangers and regenerators for caloric...
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).
Second meeting of the IIR Working Party on LCCP Evaluation in Gaithersburg
The second meeting of the IIR Working Party on Life Cycle Climate Performance (LCCP) Evaluation took place at NIST in Gaithersburg, MD, USA.. The minutes of the meeting and other documents can be consulted on the Web page of the working party. The...
Job opportunities: Sainsbury’s is looking for young graduate engineers.
Sainsbury’s is looking for young graduate engineers: £27,000 (32,500 €) starting salary, six monthly reviews and performance relative bonus.
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...
Available now: All 474 papers from the Purdue Conferences 2018
Welcoming 800 participants from 30 different countries, the 2018 Purdue Conferences took place at Purdue University in West Lafayette, Indiana, USA, from July 9 to 12, 2018.
New IIR Informatory Note on caloric cooling technologies
IIR’s 50th Informatory Note on refrigeration technologies focuses on three promising alternative solid-state cooling technologies: magnetocaloric, electrocaloric and...
New president of IIR Commission C2 on food science and engineering
The IIR is proud to announce the appointment of Judith Evans, Professor at London South Bank University, as the new president of IIR Commission C2 on food science and engineering.
Encyclopedia of Refrigeration
6 results
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...
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...
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...
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...
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...
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...
