Lattice Boltzmann method simulation of ice melting process in the gas diffusion layer of fuel cell

被引：41
作者：
He, Pu [1 ]
Chen, Li [1 ]
Mu, Yu-Tong [2 ]
Tao, Wen-Quan [1 ]
机构：
[1] Xi An Jiao Tong Univ, Key Lab Thermofluid Sci & Engn MOE, Sch Energy & Power Engn, Xian 710049, Shaanxi, Peoples R China
[2] Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian 710054, Shaanxi, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2020年 / 149卷
基金：
中国国家自然科学基金;
关键词：
Ice melting; Gas diffusion layer; Lattice Boltzmann method; Enthalpy-based method; Fluid flow; Heat transfer; PHASE-CHANGE MATERIALS; THERMAL-ENERGY STORAGE; SOLAR WATER-HEATER; PORE-SCALE; COLD START; CATALYST LAYERS; SELF-START; PERFORMANCE; MODEL; PCM;
D O I：
10.1016/j.ijheatmasstransfer.2019.119121
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A 2D lattice Boltzmann model combining the enthalpy-based method (EBM) is established to investigate the ice melting process in the gas diffusion layer (GDL). The effects of GDL melting position, porosity, Rayleigh number and Stefan number on the melting rate, ending time of melting, temperature distribution and solid-liquid interface distribution are investigated. It is found that the GDL melting positions have a significant effect on the melting process, the melting rate in the In-plane position increases fastest. When the porosity is large, the effect of the carbon fiber layer number on the melting process is more significant than that of the carbon fiber length. In the In-plane position, the increase of natural convection intensity has a promoting effect on the ice melting process. The increasing of Stefan number can promote the melting process significantly when the Stefan number is not high. And reducing the GDL porosity can effectively promote the melting process. (C) 2019 Elsevier Ltd. All rights reserved.
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页数：12
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