Experimental evaluation of a CO2 transcritical refrigeration plant with dedicated mechanical subcooling
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Other documents of the author: Llopis, Rodrigo; Nebot-Andres, Laura; Cabello López, Ramón; Sánchez García-Vacas, Daniel; Catalán-Gil, Jesús
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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
Experimental evaluation of a CO2 transcritical refrigeration plant with dedicated mechanical subcoolingAuthor (s)
Date
2016-09Publisher
ElsevierISSN
0140-7007Bibliographic citation
LLOPIS, Rodrigo, et al. Experimental evaluation of a CO 2 transcritical refrigeration plant with dedicated mechanical subcooling. International Journal of Refrigeration, 2016Type
info:eu-repo/semantics/articlePublisher version
http://www.sciencedirect.com/science/article/pii/S0140700716301712Subject
Abstract
CO2 transcritical refrigeration cycles require optimization to reach the performance of conventional solutions at high ambient temperatures. Theoretical studies demonstrated that the combination of a transcritical ... [+]
CO2 transcritical refrigeration cycles require optimization to reach the performance of conventional solutions at high ambient temperatures. Theoretical studies demonstrated that the combination of a transcritical cycle with a mechanical subcooling cycle improves its performance; however, any experimentation with CO2 has been found. This work presents the energy improvements of the use of a mechanical subcooling cycle in combination with a CO2 transcritical refrigeration plant, experimentally. It tested the combination of a R1234yf single-stage refrigeration cycle with a semihermetic compressor for the mechanical subcooling cycle, with a single-stage CO2 transcritical refrigeration plant with a semihermetic compressor. The combination is evaluated at two evaporating levels of the CO2 cycle (0 and −10 °C) and three heat rejection temperatures (24, 30 and 40 °C). The optimum operating conditions and capacity and COP improvements are analysed with maximum increments on capacity of 55.7% and 30.3% on COP. [-]
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International Journal of Refrigeration, 2016Rights
© 2016 Elsevier Ltd and IIR. All rights reserved.
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info:eu-repo/semantics/openAccess
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info:eu-repo/semantics/openAccess
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