Experimental evaluation of alternative CO2-based blends for transcritical refrigeration systems
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Títol
Experimental evaluation of alternative CO2-based blends for transcritical refrigeration systemsAutoria
Data de publicació
2023-08-21Editor
International Institute of Refrigeration (IIR)Tipus de document
info:eu-repo/semantics/conferenceObjectVersió de l'editorial
https://www.icr2023.org/Versió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
This work presents two refrigerant CO2 blends with R32 and R1270 designed with a theoretically nonflammability and a GWP below 150. Both mixtures were tested in a small-capacity vapour compression
system with and ... [+]
This work presents two refrigerant CO2 blends with R32 and R1270 designed with a theoretically nonflammability and a GWP below 150. Both mixtures were tested in a small-capacity vapour compression
system with and without IHX, considering the same working conditions of heat rejection temperature and
demanding conditions at the evaporator. Taking the pure CO2 results as a reference in a cycle without IHX,
the blend of CO2/R32 enhanced the COP up to 18.1% with an optimal pressure reduction of 19.0% and a
power consumption minimization of 17.1%. The mixture of CO2/R1270 presented a COP enhancement of
8.4% with an optimal pressure reduction of 8.0% and a power consumption minimization of 7.9%. In all cases,
the use of the IHX resulted positively with increments compared to the pure CO2 base cycle of 6.4% for pure
CO2, 13.3% for CO2/ R1270, and 24.7% for CO2/ R32. [-]
Entitat finançadora
Ministerio de Ciencia, Innovación y Universidades (Spain) | European Union-Next Generation EU | Ministry of Education and Professional Training, Spain | MCIN/AEI/10.13039/501100011033 | Universitat Jaume I
Codi del projecte o subvenció
PID2021-126926OB-C21 | INVEST/2022/294 | PRE2019-091617 | PRX22/00714 | TED2021-130162B-I00 | UJI-B2021-10
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http://rightsstatements.org/vocab/CNE/1.0/
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess