Alternative CO2-based blends for transcritical refrigeration systems
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Show full item recordcomunitat-uji-handle:10234/9
comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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INVESTIGACIONMetadata
Title
Alternative CO2-based blends for transcritical refrigeration systemsAuthor (s)
Date
2023-03-21Publisher
ElsevierBibliographic citation
SÁNCHEZ, D., et al. Alternative CO2-based blends for transcritical refrigeration systems. International Journal of Refrigeration, 2023.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionAbstract
The extensive use of CO2 in commercial refrigeration system has grown in the last two decade thanks to the development of new components and configurations that allows working in transcritical conditions efficiently. ... [+]
The extensive use of CO2 in commercial refrigeration system has grown in the last two decade thanks to the development of new components and configurations that allows working in transcritical conditions efficiently. However, using these arrangements increases the cost and complexity of the refrigerating plant, making it challenging to implement them in medium or low-capacity systems. As an alternative, CO2-based binary mixtures report attractive improvements that allow for enhancing the COP of the system by minimising its complexity and maintaining the safety and environmental conditions of CO2. This manuscript analyses five binary mixtures of CO2 with the refrigerants R32, R152a, R1234yf, R1234ze(E) and R1270, determining the optimal mixture composition for maximising the COP of a CO2 transcritical refrigeration plant in a wide range of environmental temperatures (0 to 40°C). Fixing the operating conditions for a medium-temperature application, the binary mixtures of CO2/R32 (81/19% in mass) and CO2/R1270 (92.5/7.5% in mass) reported the best COP enhancements results with increments up to +21.4% and +8.7%, respectively, at high environmental temperatures. [-]
Funder Name
Ministerio de Ciencia, Innovación y Universidades (Spain) | European Union – “NextGenerationEU” | European Union - NextGenerationEU “NextGenerationEU”/PRTR | Universitat Jaume I
Project code
PID2021–126926OB-C21 (acronym: HELTHA) | INVEST/2022/294 | PRE2019–091617 | TED2021-130162B-I00 | UJI-B2021–10
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info:eu-repo/semantics/openAccess
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