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Étude numérique des performances thermo-hydrauliques d'un échangeur de chaleur à circuit imprimé pour un système de stockage d'énergie à air liquide.

Numerical Investigation on Thermal–Hydraulic Performance of a Printed Circuit Heat Exchanger for Liquid Air Energy Storage System.

Author(s) : LIU H., ZHANG Y., YU P., XUE J., ZHANG L., CHE D.

Type of article: Periodical article

Summary

A printed circuit heat exchanger (PCHE) is utilized to cool the compressor inlet air to increase the compression efficiency in a liquid air energy storage and liquid natural gas (LNG) coupled system, which can offer large-scale energy storage with significantly improved exergy efficiency and round-trip efficiency. In this work, the effect of pressure of air, incline angle, and hydraulic diameter on the performance of a compressed air–water PCHE with a semicircle cross-section was studied. The results show that PCHE can realize the intermediate cooling of air compression in the liquid air energy storage system, and the pressure variation of air shows a limited effect on the heat transfer of PCHE; however, the hydraulic diameter and the incline angle both affect the heat transfer and the flow resistance of PCHE, and the best incline angle is 15°.

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  • Original title: Numerical Investigation on Thermal–Hydraulic Performance of a Printed Circuit Heat Exchanger for Liquid Air Energy Storage System.
  • Record ID : 30030429
  • Languages: English
  • Subject: Technology
  • Source: Energies - 15 - 17
  • Publishers: MDPI
  • Publication date: 2022/09
  • DOI: http://dx.doi.org/10.3390/en15176347

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