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IIR document

Geometry of wrap profiles in co-rotating scroll compressors.
- Author(s) : MOJIRI A., MIKEL M., BARBER T.
- Publication date: 2019/10
- Languages : English
- Keywords : Scroll compressor, Modelling, Rotation, Geometry, Speed (machines)
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 106
- Formats : PDF
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IIR document

Numerical study on optimization of ejector primary nozzle geometries.
- Author(s) : WANG L., YAN J., WANG C., et al.
- Publication date: 2017/04
- Languages : English
- Keywords : Refrigerating system, Geometry, Roughness, CFD, Design, Ejector
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
- Formats : PDF
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Effect of channel geometries on flow reversal in microchannel evaporators.
- Author(s) : LI H., HRNJAK P.
- Publication date: 2016/07/11
- Languages : English
- Keywords : Geometry, Microchannel, Modelling, Evaporator, Flow
- Source: 2016 Purdue Conferences. 16th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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Friction properties of journal bearing having bell-mouth geometry.
- Author(s) : ISHIDA Y., USAMI H., NAKASHIMA N.
- Publication date: 2018/07/09
- Languages : English
- Keywords : Geometry, Friction, Wear, Refrigerator, Bearing, Testing, Reciprocating compressor
- Source: 2018 Purdue Conferences. 24^thInternational Compressor Engineering Conference at Purdue.
- Formats : PDF
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IIR document

Review of variable geometry air-to-refrigerant heat exchangers.
- Author(s) : O'MALLEY B., AUTE V., BACELLAR D., RADERMACHER R.
- Publication date: 2023/08/21
- Languages : English
- Keywords : Heat exchanger, Geometry, Finned tube, Review, Heat transfer
- Source: Proceedings of the 26^th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Formats : PDF
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Recommended by the IIR / IIR document

Study of a novel inlet geometry for ejectors.
- Author(s) : BAUZVAND A., TAVOUSSI E., NOGHREHABADI A., BEHBAHANI-NEJAD M.
- Publication date: 2022/07
- Languages : English
- Keywords : Geometry, Ejector system, Two-phase flow, CFD, Simulation, Performance, Nozzle, Expérimentation, Ejector
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 139
- Formats : PDF
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Design optimization of variable geometry microchannel heat exchangers.
- Author(s) : HUANG L., AUTE V., RADERMACHER R.
- Publication date: 2014/07/14
- Languages : English
- Keywords : R134a, Geometry, Microchannel, Design, R744, Performance, Optimization, Heat exchanger, CO2
- Source: 2014 Purdue Conferences. 15th International Refrigeration and Air-Conditioning Conference at Purdue.
- Formats : PDF
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CFD analysis and experimental study on the effect of geometries for the performance of an ejector.

[In Chinese. / En chinois.]
- Author(s) : XIA Z., LI J., GAO D., et al.
- Publication date: 2014/06
- Languages : Chinese
- Keywords : Geometry, CFD, Turbulence, R236fa, Simulation, Expérimentation, Ejector
- Source: Journal of Refrigeration - vol. 35 - n. 157
- Formats : PDF
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Design of compact microscale geometries for ammonia-water desorption.
- Author(s) : DELAHANTY J. C., GARIMELLA S., GARRABRANT M. A.
- Publication date: 2014/03/02
- Languages : English
- Keywords : Geometry, Mass transfer, Heat transfer, Design, Ammonia-water, Desorption
- Source: International sorption heat pump conference (ISHPC2014), College Park, United States, March 31-April 2, 2014.
- Formats : PDF
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IIR document

Second law optimization of regenerative geometries for magnetic cooling applications.
- Author(s) : TREVIZOLI P. V., ALCALDE D. P., BARBOSA J. R. Jr
- Publication date: 2014/09/07
- Languages : English
- Keywords : Geometry, Heat transfer, Regenerator, Optimization, Modelling, Magnetism, Entropy
- Source: 6^thInternational Conference on Magnetic Refrigeration at Room Temperature (Thermag VI). Proceedings: Victoria, Canada, September 7-10, 2014.
- Formats : PDF
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IIR document

Direct numerical analysis of pin geometries for magnetocaloric regenerators.
- Author(s) : MUGICA GUERRERO I., PONCET S., BOUCHARD J.
- Publication date: 2019/08/24
- Languages : English
- Keywords : Geometry, Magnetic refrigerator, Magnetocaloric cooling, Heat transfer, Regenerator, Simulation, Performance, Demagnetization
- Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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IIR document

Experimental results with a variable geometry ejector using R600a as working fluid.
- Author(s) : PEREIRA P. R., VARGA S., SOARES J., et al.
- Publication date: 2014/10
- Languages : English
- Keywords : R600a, Isobutane, Geometry, Ejector system, Performance, Expérimentation, Refrigerant
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 46
- Formats : PDF
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IIR document

Visualization of flow distribution in rectangular and triangular header geometries.
- Author(s) : MAHVI A. J., GARIMELLA S.
- Publication date: 2017/04
- Languages : English
- Keywords : Two-phase flow, Geometry, Minichannel, Measurement, Design, Compact heat exchangeur, Distribution
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 76
- Formats : PDF
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IIR document

Comprehensive analytic solutions for the geometry of symmetric constant-wall-thickness scroll machines.
- Author(s) : BELL I. H., GROLL E. A., BRAUN J. E., et al.
- Publication date: 2014/09
- Languages : English
- Keywords : Geometry, Wall, Expander, Thickness, Scroll compressor
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 45
- Formats : PDF
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IIR document

Novel geometries for air-cooled condensation of ammonia-water mixtures.
- Author(s) : CHAKRABORTY S., KINI G., GARIMELLA S.
- Publication date: 2021/01
- Languages : English
- Keywords : Ammonia-water, R717, Mixture, Condensation, Geometry, Condenser, Optimization, Design, Modelling, Expérimentation
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 121
- Formats : PDF
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See all results in the Fridoc database

Solar ejector refrigeration systems: benefits and latest developments

Two IJR articles present the latest advancements in this technology and in particular the advantages of variable geometry ejectors and low-GWP refrigerants in terms of performance.
- Publication date : 2020/06/26
- Subjects: Developing country
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2005 AHR Expo Innovation award winners

The winners of the third annual AHR (Air Conditioning, Heating and Refrigeration) Expo Innovation awards will be honoured during a ceremony during the 2005 AHR Expo in Orlando, Florida, on February 8, 2005. The product entries were judged for...
- Publication date : 2004/12/22
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Frost mitigation methods for heat pumps and refrigeration systems

Frost growth is an important issue since defrosting can represent up to 30% of the total energy consumption of refrigerated display cabinets. Review of the various frost mitigation technologies and latest...
- Publication date : 2021/12/15
- Subjects: Technology
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THRIVE project explores new developments for adsorbtion heat pumps

Launched in 2014, the four-year project THRIVE was funded by the Swiss National Science Foundation (SNSF) to investigate adsorption heat pumps and to develop a system powered by waste heat.
- Publication date : 2018/11/30
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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...
- Publication date : 2016/05/13
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Pulse technology defrosts surfaces in seconds

A team of Japanese and American researchers is developing with a new, fast and efficient technology to defrost surfaces.
- Publication date : 2019/09/30
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Reducing the economic costs of a direct-use geothermal heating system

Italian researchers have modelled a polymer heat exchanger to reduce the cost of a direct-use geothermal heating system for a single building in the active volcano district of the...
- Publication date : 2022/02/21
- Subjects: Technology
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The benefits of 3D printing in refrigeration and air conditioning

The various applications of 3D printing in the field of refrigeration and air conditioning highlight possible tremendous advantages in terms of energy efficiency and cost minimisation.
- Publication date : 2020/05/27
- Subjects: Technology
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Cryogenics and 3D-printing techniques could allow the replication of human tissues

A team of researchers from Imperial College London have developed a new technique which could allow the replication of human brain and lung tissue and regenerate damaged parts.
- Publication date : 2018/03/22
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Great potential for solar district cooling in Saudi Arabia

A recent modelling compares the performances of a two-stage and a single-stage absorption chiller in a solar district cooling system in Riyadh, Saudi Arabia.
- Publication date : 2018/12/27
- Subjects: Developing country
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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...
- Publication date : 2022/09/28
- Subjects: Technology
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New design for the IJR but still quality papers!

As well as original research papers the IJR also includes review articles, papers presented at IIR conferences, short reports and letters describing preliminary results and experimental details, and letters to the Editor on recent areas of...
- Publication date : 2019/11/20
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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...
- Last update : 2022/09/16
- Langues : French, English
- Themes : Caloric cooling (magnetocaloric, electrocaloric, elastocaloric and barocaloric cooling)
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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...
- Last update : 2022/06/22
- Langues : French, English
- Themes : Hydrocarbons, Containment, refrigerant charge reduction
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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...
- Last update : 2022/09/07
- Langues : French, English
- Themes : Evaporators, condensers and other heat exchangers
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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...
- Last update : 2023/11/07
- Langues : French, English
- Themes : Freezing of foodstuffs
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