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Heat Transfer Behavior of Composite Hydrogen Cylinder Based on Conjugate Heat Transfer Subjected to Fire Impingement(PDF)

《燃烧科学与技术》[ISSN:1006-8740/CN:12-1240/TK]

Issue:
2020 01
Page:
51-59
Research Field:
Publishing date:

Info

Title:
Heat Transfer Behavior of Composite Hydrogen Cylinder Based on Conjugate Heat Transfer Subjected to Fire Impingement
Author(s):
Cheng ChonglüXu BaopengKong Fanfu
School of Energy and Power Engineering,Dalian University of Technology,Dalian 116024,China
Keywords:
composite hydrogen cylinderlarge eddy simulationconjugate heat transferfiredecomposition
PACS:
TK91
DOI:
10.11715/rskxjs.R201812003
Abstract:
Composite hydrogen cylinder is a key component of hydrogen fuel cell vehicles,and the accurate prediction of its transient heat transfer behavior subjected to fire impingement is essential to its failure criterion.In this paper,a two-way coupled conjugate heat transfer model based on a multi-region approach is proposed for modelling the transient heat transfer behavior of composite hydrogen cylinders.The fire is modelled using large eddy simulation(LES),and three-dimensional governing equations based on the finite volume method are established to model the heat transfer through the regions of composite laminate,HDPE liner and pressurized hydrogen,respectively.The effects of the gas decomposition of composite material and the volatile gas transport are taken into account,and the variable physical properties relying on composite material composition and temperature are adopted.The proposed conjugate heat transfer model is validated against a bonfire test of a commercial Type-4 cylinder,and its transient heat transfer characteristics are also studied in detail.

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Last Update: 2020-01-17