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Numerical investigation of hydrogen absorption in a metal hydride reactor with embedded embossed plate heat exchanger
Energy ( IF 9 ) Pub Date : 2020-03-01 , DOI: 10.1016/j.energy.2020.116942
Swaraj D. Lewis , Purushothama Chippar

Abstract In this paper, a Metal Hydride (MH) reactor integrated with an Embossed Plate Heat Exchanger (EPHX) was studied for the first time for its hydrogen absorption rate and thermal performance. A detailed numerical analysis of the various flow-field designs in the EPHX such as parallel-type, pin-type, and serpentine types (vertical and horizontal) was performed. The serpentine flow-field EPHX presented better heat transfer and faster hydrogen storage ability. Also, it showed more uniform temperature distribution in the bed compared with parallel and pin-type flow-fields. Next, the vertical-serpentine flow-field EPHX was compared with the most commonly used Helical Coil Heat Exchanger (HCHX) and the outcomes were discussed. Although, EPHX showed slightly lower overall heat removal from the reactor, it presented similar hydrogen absorption rate and remarkable uniformity in temperature distribution in the reactor.

中文翻译:

嵌入式压纹板式换热器金属氢化物反应器吸氢数值研究

摘要 本文首次研究了与压纹板式换热器(EPHX)集成的金属氢化物(MH)反应器的吸氢率和热性能。对 EPHX 中的各种流场设计进行了详细的数值分析,例如平行型、销型和蛇形(垂直和水平)。蛇形流场EPHX表现出更好的传热和更快的储氢能力。此外,与平行流场和针式流场相比,它在床中显示出更均匀的温度分布。接下来,将垂直蛇形流场 EPHX 与最常用的螺旋盘管换热器 (HCHX) 进行比较,并讨论结果。尽管 EPHX 从反应器中去除的总热量略低,
更新日期:2020-03-01
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