Experimental validation and development of an advanced computational model of a transcritical carbon dioxide vapour compression cycle with a thermoelectric subcooling system
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comunitat-uji-handle2:10234/7035
comunitat-uji-handle3:10234/8617
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INVESTIGACIONMetadata
Title
Experimental validation and development of an advanced computational model of a transcritical carbon dioxide vapour compression cycle with a thermoelectric subcooling systemAuthor (s)
Date
2022-01-23Publisher
Elsevier Ltd.ISSN
1359-4311Bibliographic citation
Casi, Á., Aranguren, P., Sanchez, D., Araiz, M., Cabello, R., & Astrain, D. (2022). Experimental validation and development of an advanced computational model of a transcritical carbon dioxide vapour compression cycle with a thermoelectric subcooling system. Applied Thermal Engineering, 118045.Type
info:eu-repo/semantics/articleVersion
info:eu-repo/semantics/publishedVersionAbstract
The inclusion of a thermoelectric subcooler as an alternative to increment the performance of a vapour
compression cycle has been proved promising when properly designed and operated for low-medium power
units. In ... [+]
The inclusion of a thermoelectric subcooler as an alternative to increment the performance of a vapour
compression cycle has been proved promising when properly designed and operated for low-medium power
units. In this work, a computational model that simulates the behaviour of a carbon dioxide transcritical vapour
compression cycle in conjunction with a thermoelectric subcooler system is presented. The computational tool
is coded in Matlab and uses Refprop V9.1 to calculate the properties of the refrigerant at each point of the
refrigeration cycle. Working conditions, effect of the heat exchangers of the subcooling system, temperature
dependent thermoelectric properties, thermal contact resistances and the four thermoelectric effects are taken
into account to increment its accuracy. The model has been validated using experimental data to prove the
reliability and accuracy of the results obtained and shows deviations between the ±7% for the most relevant
outputs. Using the validated computational tool a 13.6 % COP improvement is predicted when optimizing the
total number of thermoelectric modules of the subcooling system. The computational experimentally validated
tool is properly fit to aid in the design and operation of thermoelectric subcooling systems, being able to
predict the optimal configuration and operation settings for the whole refrigeration plant. [-]
Is part of
Applied Thermal Engineering, Vol. 206 (april 2022)Funder Name
Ministerio de Ciencia, Innovación y Universidades | European Regional Development Fund
Project code
RTI2018-093501-B-C21 | RTI2018-093501-B-C22
Project title or grant
Mitigación del potencial de efecto invernadero en sistemas de refrigeración comercial autónomos (LOWTEWI)
Rights
© 2022 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
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