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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical simulation of sorption/desorption processes in metal-hydride systems for hydrogen storage and purification. Part I: Development of a mathematical model
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Numerical simulation of sorption/desorption processes in metal-hydride systems for hydrogen storage and purification. Part I: Development of a mathematical model

机译：在金属氢化物系统中用于氢存储和纯化的吸附/解吸过程的数值模拟。第一部分：数学模型的开发

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摘要

The pressure drops and the intertacial convective heat and mass transfer coefhcients in packed beds saturated with a gaseous mixture containing hydrogen are studied by direct numerical simulation in the Darcy regime flow(Re_d≤1)for both random and structured packings of the beds. For conditions with the Knudsen number Kn≤0.01, the effective thermal conductivity of the random packings was calculated for various filling gases(H_2, He, N_2, and Ar). Additional correlations of the mathematical model for variable heat and mass transfer in porous hydrogen-absorbing media and based on the approximation of interpenetrating continua were specified from the received results. The developed mathematical model was used in numerical simulations of the heat and mass transfer processes in practical hydrogen storage devices. These results will be presented in the second part of the paper.
机译：通过直接数值模拟在随机床和规整床的达西状态流（Re_d≤1）中研究了饱和含氢气体混合物的填充床中的压降以及界面对流换热和传质系数。对于克努森数Kn≤0.01的条件，计算了各种填充气体（H_2，He，N_2和Ar）的无规填料的有效导热系数。从接收到的结果中指定了多孔氢吸收介质中可变传热和传质的数学模型的其他相关性，并且基于互穿连续体的近似值。开发的数学模型用于实际储氢装置中传热和传质过程的数值模拟。这些结果将在本文的第二部分中介绍。

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