A finite element analysis of thermal stress in an external resistant based regenerator

doi:10.12028/j.issn.2095-4239.2018.0235

Energy Storage Science and Technology ›› 2019, Vol. 8 ›› Issue (2): 333-337.doi: 10.12028/j.issn.2095-4239.2018.0235

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A finite element analysis of thermal stress in an external resistant based regenerator

HU Xiao¹, YANG Cenyu¹, CHEN Lei², XING Zuoxia², ZHAO Haichuan², XU Guizhi¹

1 Global Energy Interconnection Research Institute Co. Ltd, Beijing 102209, China;
2 School of Electrical Engineering, Shenyang University of Technology, Shenyang 110870, Liaoning, China

Received:2018-12-03 Revised:2019-01-07 Online:2019-03-01 Published:2019-03-01

Abstract

Abstract: The thermal deformation and thermal stress of a resistant based regenerator were analyzed by a combination of theoretical analyses and finite element numerical simulations, aimed at the understanding if thermal deformation of the external resistive regenerator could cause unstable structure of the regenerator. The thermal stress and thermal deformation equations of different phase change materials under temperature cycling were deduced theoretically, and the numerical simulations were carried out on the thermal stress and its distribution in the regenerator under a certain working condition (case study). The modelling was validated qualitatively by comparing with the operation of an actual thermal storage body.

Key words: electrothermal energy storage, external resistance, thermal deformation, thermal stress

CLC Number:

TM123

HU Xiao, YANG Cenyu, CHEN Lei, XING Zuoxia, ZHAO Haichuan, XU Guizhi. A finite element analysis of thermal stress in an external resistant based regenerator[J]. Energy Storage Science and Technology, 2019, 8(2): 333-337.

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A finite element analysis of thermal stress in an external resistant based regenerator

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