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Computational analysis of a thermoelectric subcooler included in vapour compression cycles with natural refrigerants.

Number: 0169

Author(s) : CASI A., ARANGUREN P., SÁNCHEZ D., ARAIZ M., CABELLO R., RODRÍGUEZ A., ASTRAIN D.

Summary

This work presents a computational model able to simulate a thermoelectric subcooling system in a refrigeration cycle that uses natural refrigerants. It represents the vapour compression equipment and subcooling system powered by thermoelectric modules. It takes into consideration thermal resistance of the heat‐exchangers, thermal losses, thermal contact resistances and every thermoelectric phenomenon. The deviations obtained with the computational model are between the ± 7 % interval. The computational model is used to predict the optimum number of thermoelectric modules on the system and the effect that the heat exchangers of the subcooler have on the performance of the system. The results show that an optimization of the number of thermoelectric modules would improve the COP from 11.3 % to 13.6 % in comparison with the base cycle. In addition, improving the thermal resistance of the heat exchangers an extra improvement of 2.49 % enhancement in the COP could be achieved.

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Pages: 8 p.

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Details

  • Original title: Computational analysis of a thermoelectric subcooler included in vapour compression cycles with natural refrigerants.
  • Record ID : 30029761
  • Languages: English
  • Subject: Technology
  • Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
  • Publication date: 2022/06/13
  • DOI: http://dx.doi.org/10.18462/iir.gl2022.0169
  • Document available for consultation in the library of the IIR headquarters only.

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