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LAPSE:2023.10121

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

Hu Liu, Yankang Zhang, Pengfei Yu, Jingwen Xue, Lei Zhang, Defu Che

February 27, 2023

Abstract
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°.

Record ID

LAPSE:2023.10121

Keywords

compressed air–water heat transfer, Computational Fluid Dynamics, printed circuit heat exchanger, thermal–hydraulic performance, wavy channel

Subject

Modelling and Simulations

Suggested Citation

Liu H, Zhang Y, Yu P, Xue J, Zhang L, Che D. Numerical Investigation on Thermal−Hydraulic Performance of a Printed Circuit Heat Exchanger for Liquid Air Energy Storage System. (2023). LAPSE:2023.10121

Author Affiliations

Liu H: State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China [ORCID]
Zhang Y: State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Yu P: State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China [ORCID]
Xue J: State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China
Zhang L: Xi’an Thermal Power Research Institute Co., Ltd., Xi’an 710032, China
Che D: State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

Journal Name

Energies

Volume

Issue

First Page

6347

Year

2022

Publication Date

2022-08-31

DOI:

https://doi.org/10.3390/en15176347