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Evaluación energética del impacto del mechanical subcooling en un sistema de CO2 de expansión directa en una cabinet comercial de MT.

Energy evaluation of the mechanical subcooling impact on a CO2 DX-system in a commercial MT cabinet.
- Author(s) : NEBOT-ANDRÉS L., CATALÁN-GIL J., LLOPIS R., et al.
- Publication date: 2018/06/19
- Languages : Spanish
- Keywords : Temperature difference, Energy consumption, Display cabinet, Direct expansion, R744, Thermodynamic property, Subcooling, Performance, Expérimentation, CO2
- Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
- Formats : PDF
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Sistema de subenfriamiento mecánico para ciclos transcríticos de refrigeración con CO2.

Mechanical subcooling system for CO2 transcritical refrigeration cycles.
- Author(s) : LLOPIS R., SÁNCHEZ D., CABELLO R., et al.
- Publication date: 2016/05/03
- Languages : Spanish
- Keywords : Enhancement, R744, Subcooling, Performance, Transcritical cycle, Refrigerant, CO2
- Source: CYTEF 2016. VIII Congreso Ibérico y VI Congreso Iberoamericano de las Ciencias y Técnicas del Frío, Coimbra-Portugal, 3-6 mayo, 2016.
- Formats : PDF
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Mejora energética de sistemas de subenfriamiento mecánico en plantas de refrigeración con CO₂.

Energy improvement of mechanical subcooling systems in CO2 refrigeration plants.
- Author(s) : NEBOT-ANDRÉS L., CALLEJA-ANTA D., SÁNCHEZ D., CABELLO R., MARTINEZ-ANGELES M., LLOPIS R.
- Publication date: 2022/04
- Languages : Spanish
- Keywords : R744, Commercial application, Subcooling, Transcritical cycle, COP, Testing
- Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
- Formats : PDF
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Análisis del subenfriamiento integrado en los sistemas booster con CO2.

Analysis of integrated subcooling in CO2 booster systems.
- Author(s) : CATALÁN-GIL J., NEBOT-ANDRÉS L., SÁNCHEZ D., et al.
- Publication date: 2018/06/19
- Languages : Spanish
- Keywords : Spain, Energy consumption, Commercial application, R744, Subcooling, Portugal, Modelling, COP, CO2
- Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
- Formats : PDF
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Maximización del COP de un sistema de compresión de vapor con CO₂ al incluir subenfriamiento termoeléctrico optimizado.

Maximising the COP of a CO2 steam compression system through optimised thermoelectric subcooling.
- Author(s) : ARANGUREN P., CASI A., ARAIZ M., ERRO ITURRALDE I., ALEGRIA P., SÁNCHEZ D., CABELLO R., ASTRAIN D.
- Publication date: 2022/04
- Languages : Spanish
- Keywords : CO2, R744, Compression system, Subcooling, COP
- Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
- Formats : PDF
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IIR document

Effect of Dual-frequency ultrasonic on subcooled water freezing.
- Author(s) : ZHAO Z., ZHOU R., JIN Z., QIN L., LI S., LI Y.
- Publication date: 2023/10
- Languages : English
- Keywords : Ultrasound, Freezing, Subcooling, Ice slurry, Expérimentation, Ice
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 154
- Formats : PDF
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Comparativa de sistemas de subenfriamiento en ciclos de refrigeración de CO2 en climas cálidos.

Comparison of subcooling systems in CO2 refrigeration cycles in hot climates.
- Author(s) : NEBOT-ANDRÉS L., CATALÁN-GIL J., LLOPIS R., et al.
- Publication date: 2018/06/19
- Languages : Spanish
- Keywords : Comparison, R744, Subcooling, Modelling, Evaporation, Energy efficiency, COP, CO2, Hot climate
- Source: CYTEF 2018. IX Congreso Ibérico y VII Congreso Iberoamericano de Ciencias y Técnicas del Frío, Valencia, España, 19-21 junio 2018.
- Formats : PDF
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IIR document

Energy improvements of CO2 transcritical refrigeration cycles using dedicated mechanical subcooling.
- Author(s) : LLOPIS R., CABELLO R., SÁNCHEZ D., et al.
- Publication date: 2015/07
- Languages : English
- Keywords : Enhancement, Subcooling, Energy efficiency, Transcritical cycle, CO2
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 55
- Formats : PDF
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Análisis experimental de un sistema de subenfriamento en un ciclo simple de compresión de vapor usando R744 transcrítico.

Experimental analysis of a sub-cooling system in a single vapour compression cycle using transcritical R744.
- Author(s) : VIDAN-FALOMIR F., ANDREU-NACHER A., CABELLO R., LARRONDO-SANCHO R., LLOPIS R., SÁNCHEZ D.
- Publication date: 2022/04
- Languages : Spanish
- Keywords : Subcooling, CO2, R744, Expérimentation, Optimization, Gas cooler
- Source: XI Congreso Ibérico y IX Congreso Iberoamericano de Ciencias y Técnicas del Frío, CYTEF 2022.
- Formats : PDF
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IIR document

Numerical study on flow condensation in subcooled oxygen bend pipes of liquid rocket.
- Author(s) : ZHU K., MA Y., LI C., et al.
- Publication date: 2017/05/15
- Languages : English
- Keywords : Pipe, CFD, R123, Subcooling, Modelling, Condensation
- Source: Cryogenics 2017. Proceedings of the 14^th IIR International Conference: Dresden, Germany, Mai 15-19, 2017.
- Formats : PDF
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IIR document

Evaluation of optimal subcooling in subcritical heat pump systems.
- Author(s) : PITARCH M., HERVÁS-BLASCO E., NAVARRO-PERIS E., et al.
- Publication date: 2017/06
- Languages : English
- Keywords : R134a, R1234yf, Calculation, R32, R290, Subcooling, Heat pump, Heat exchanger
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 78
- Formats : PDF
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IIR document

Correlation for CHF during subcooled flow across a single cylinder.
- Author(s) : SHAH M. M.
- Publication date: 2023/01
- Languages : English
- Keywords : Critical flux, Heat flux, Crossflow, Cylinder, Tube, Correlation, Subcooling
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 145
- Formats : PDF
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IIR document

Subcooling methods for CO2 refrigeration cycles: A review.
- Author(s) : LLOPIS R., NEBOT-ANDRÉS L., SÁNCHEZ D., et al.
- Publication date: 2018/09
- Languages : English
- Keywords : Thermoelectric cooling, Commercial application, R744, Review, Subcooling, Performance, Economizer, Heat exchanger, CO2
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 93
- Formats : PDF
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Recommended by the IIR / IIR document

CO2 transcritical plant with optimized dedicated mechanical subcooling.
- Author(s) : CORTELLA G., COPPOLA M. A., D'AGARO P.
- Publication date: 2020/08/26
- Languages : English
- Keywords : CO2, Transcritical cycle, Thermodynamic property, Subcooling, Supermarket, Optimization, Performance, Simulation, R744, Modelling
- Source: 6^th IIR International Conference on Sustainability and the Cold Chain. Proceedings: Nantes, France, August 26-28 2020
- Formats : PDF, Video
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IIR document

Numerical study on performance comparison for sub-cooling methods using a sub-cooler in a multi-split variable refrigerant flow (VRF) system.
- Author(s) : LEE T., MIN B., CHOI G.-M., et al.
- Publication date: 2019/08/24
- Languages : English
- Keywords : Variable volume, Split system, Subcooling, Simulation, Performance, Injection, Refrigerant, Air conditioning, Scroll compressor
- Source: Proceedings of the 25^th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
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See all results in the Fridoc database

R&D topics

In this issue of the Newsletter dedicated to environmental issues, we present several initiatives related to promising refrigeration technologies or applications which have the potential to decrease the environmental impact of refrigeration plants...
- Publication date : 2007/08/05
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Summary of two papers of the 9th International Conference on Compressors and Coolants (ICCC2017)

The IIR 9th International Conference on Compressors and Coolants (ICCC2017), which took place in Bratislava, Slovakia, in September 2017, addressed advances in compressors but also refrigerating technologies and alternative refrigerants, as...
- Publication date : 2018/01/10
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Highlights from IIR Ohrid conference

The 6th IIR conference on Ammonia and CO2 Refrigeration Technologies held in April 2015 in Ohrid, Macedonia, FYROM, proved highly successful. Highlights from some of the 54 papers presented were
- Publication date : 2015/11/11
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Member news : Danfoss launches thermostatic expansion valve for CO2

Danfoss has recently launched a thermostatic expansion valve for CO2, based on its TE2 valve. It is suitable for small to medium size remote refrigeration systems such as cold rooms and display...
- Publication date : 2022/10/27
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Newsletter INDEE+ | September 2023

The latest news on the INDEE+ project.
- Publication date : 2023/09/22
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Another successful IIR Gustav Lorentzen conference 2016

Dedicated to natural refrigerants, mainly ammonia, carbon dioxide and hydrocarbons, Gustav Lorentzen 2016 was a great success attracting over 270 people and more than 145 papers from leading international researchers and industrialists.
- Publication date : 2016/09/14
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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...
- Publication date : 2023/10/24
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