CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis
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Altres documents de l'autoria: Nebot-Andres, Laura; Llopis, Rodrigo; Sánchez García-Vacas, Daniel; Catalán-Gil, Jesús; Cabello López, Ramón
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comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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Títol
CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic AnalysisAutoria
Data de publicació
2017-09Editor
MDPICita bibliogràfica
NEBOT-ANDRÉS, Laura, et al. CO2 with Mechanical Subcooling vs. CO2 Cascade Cycles for Medium Temperature Commercial Refrigeration Applications Thermodynamic Analysis. Applied Sciences, 2017, vol. 7, no 9, p. 955.Tipus de document
info:eu-repo/semantics/articleVersió de l'editorial
http://www.mdpi.com/2076-3417/7/9/955/htmVersió
info:eu-repo/semantics/publishedVersionParaules clau / Matèries
Resum
A recent trend to spread the use of CO2 refrigeration cycles in warm regions of the world is to combine a CO2 cycle with another one using a high performance refrigerant. Two alternatives are being considered: cascade ... [+]
A recent trend to spread the use of CO2 refrigeration cycles in warm regions of the world is to combine a CO2 cycle with another one using a high performance refrigerant. Two alternatives are being considered: cascade and mechanical subcooling systems. Both respond to a similar configuration of the refrigeration cycle, they being based on the use of two compressors and same number of heat exchangers. However, the compressor, heat exchanger sizes and energy performance differ a lot between them. This work, using experimental relations for CO2 and R1234yf semi-hermetic compressors analyzes in depth both alternatives under the warm climate of Spain. In general, it was concluded that the CO2 refrigeration solution with mechanical subcooling would cover all the conditions with high overall energy efficiency, thus it being recommended for further extension of the CO2 refrigeration applications. [-]
Proyecto de investigación
Spanish Ministry of Economy and Competitiveness (project ENE2014-53760-R.7)Drets d'accés
© 2017 MDPI AG
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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