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Numerical study on a two-stage Metal Hydride Hydrogen Compression system

机译:两级金属氢化物氢压缩系统的数值研究

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A multistage Metal Hydride Hydrogen Compression (MHHC) system uses a combination of hydride materials in order to increase the total compression ratio, whilst maximizing the hydrogenation rate from the supply pressure at each stage. By solving the coupled heat, mass and momentum conservation equations simultaneously the performance of a MHHC system can be predicted. In the current work a numerical model is proposed to describe the operation of a complete compression cycle. Four different MHHC systems are examined in terms of maximum compression ratio, cycle time and energy consumption and it was found that the maximum compression ratio achieved was 22: 1 when operating LaNi5 (AB(5)-type) and a Zr-V-Mn-Nb (AB(2)-type intermetallic) as the first and second stage alloys respectively in the temperature range of 20 degrees C (hydrogenation) to 130 degrees C (dehydrogenation). (C) 2015 Elsevier B.V. All rights reserved.
机译:多级金属氢化物氢压缩(MHHC)系统使用氢化物​​材料的组合,以增加总压缩比,同时最大程度地提高每个阶段的供气压力。通过同时求解耦合的热量,质量和动量守恒方程,可以预测MHHC系统的性能。在当前的工作中,提出了一个数值模型来描述一个完整压缩循环的操作。研究了四种不同的MHHC系统的最大压缩比,循环时间和能耗,发现当操作LaNi5(AB(5)型)和Zr-V-Mn时,最大压缩比为22:1。 -Nb(AB(2)型金属间化合物)分别作为第一阶段和第二阶段的合金,温度范围为20摄氏度(氢化)至130摄氏度(脱氢)。 (C)2015 Elsevier B.V.保留所有权利。

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