Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration plan
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INVESTIGACIONMetadata
Title
Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration planAuthor (s)
Date
2022-05-25Publisher
ElsevierISSN
1359-4311; 1873-5606Bibliographic citation
Aranguren, P.; Sánchez, D.; Casi, A.; Cabello, R.; Astrain, D. Experimental assessment of a thermoelectric subcooler included in a transcritical CO2 refrigeration plant. Appl. Therm. Eng. 2021, 190, 116826, https://doi.org/10.1016/j.applthermaleng.2021.116826Type
info:eu-repo/semantics/articlePublisher version
https://www.sciencedirect.com/science/article/pii/S1359431121002751Version
info:eu-repo/semantics/publishedVersionSubject
Abstract
This study brings an experimental research that has tested a real transcritical CO2 vapor compression cycle that includes a thermoelectric subcooler at the exit of the gas-cooler of the refrigeration plant. The ... [+]
This study brings an experimental research that has tested a real transcritical CO2 vapor compression cycle that includes a thermoelectric subcooler at the exit of the gas-cooler of the refrigeration plant. The aforementioned technology hybridization increases the COP of refrigeration systems as long as the subcooling system is properly designed and operated. The experimental facility studied has been tested under constant ambient conditions (30 °C and relative humidity of 55%) and maintaining the evaporating temperature at −10 °C; while the voltage supplied to the thermoelectric modules and the thermal resistances of the heat exchangers located at the thermoelectric subcooler have been experimentally modified. The voltage supplied to the fans located at these heat exchangers was modified implying thermal performance deviation of the heat exchangers and a variation on the power consumption of the cooling facility. The results show an experimental increase on the COP of 11.3% while the cooling capacity increases a 15.3% when the thermoelectric modules are supplied with 2 V and the fans with 9 V. Moreover, the importance of optimizing the voltage supplied to the thermoelectric modules and to the auxiliary consumption of the thermoelectric subcooler is addressed along this research. [-]
Is part of
Applied Thermal Engineering, 2021, vol. 190Funder Name
Ministerio de Ciencia, Innovación y Universidades
Funder ID
http://dx.doi.org/10.13039/501100011033
Project code
MICIU/ICTI2017-2020/RTI2018-093501-B-C21 | MICIU/ICTI2017-2020/RTI2018-093501-B-C22
Project title or grant
Mitigación del potencial de efecto invernadero en sistemas de refrigeración comercial autónomos | Diseño optimizado de equipos termoeléctricos para mejorar el rendimiento de ciclos de compresión de vapor aplicados a sistemas de refrigeración comercial autónomos
Rights
info:eu-repo/semantics/openAccess
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