Performance investigations of a single-stage metal hydride heat pump
Performance investigations of a single-stage metal hydride heat pump
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单级金属氢化物热泵的性能研究
DOI：
10.1016/j.ijhydene.2010.04.043
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发表时间：
2010
影响因子：
7.2
通讯作者：
P. Muthukumar
中科院分区：
文献类型：
--
作者：
A. Satheesh;P. Muthukumar
对MmNi4.6Al0.4/MmNi4.6Fe0.4，LaNi4.61Mn0.26Al0.13/La0.6Y0.4Ni4.8Mn0.2，LmNi4.91Sn0.15/Ti0.99Zr0.01V0.43Fe0.09Cr0.05Mn1.5，LaNi4.6Al0.4/MmNi4.15Fe0.85和Zr0.9Ti0.1Cr0.9Fe1.1/Zr0.9Ti0.1Cr0.6Fe1.4。采用全隐式有限体积法求解圆柱形金属氢化物床内的二维非稳态传热传质耦合过程，预测了系统的性能。分析了热源温度、热沉温度和制冷温度对系统性能系数和制冷比功率的影响。预测的氢化物床的温度分布与文献中报道的实验数据进行了比较，并观察到它们之间有相当好的一致性。建议了每对合金的最佳工作温度范围。在选定的工作温度下，Zr0.9Ti0.1Cr0.9Fe1.1/Zr0.9Ti0.1Cr0.6Fe1.4氢化物对的最大COP为0.66，而LmNi4.91Sn0.15/Ti0.99Zr0.01V0.43Fe0.09Cr0.05Mn1.5氢化物对的SCP最高，为53.25W/kg体系总质量。
This paper discusses the performance investigations of a single-stage metal hydride heat pump (SS-MHHP) working with five different alloy pairs, namely, MmNi4.6Al0.4/MmNi4.6Fe0.4, LaNi4.61Mn0.26Al0.13/La0.6Y0.4Ni4.8Mn0.2, LmNi4.91Sn0.15/Ti0.99Zr0.01V0.43Fe0.09Cr0.05Mn1.5, LaNi4.6Al0.4/MmNi4.15Fe0.85and Zr0.9Ti0.1Cr0.9Fe1.1/Zr0.9Ti0.1Cr0.6Fe1.4. The performance of the system is predicted by solving the unsteady, two-dimensional coupled heat and mass transfer processes in metal hydride bed of cylindrical configuration using a fully implicit finite volume method. The influences of operating temperatures such as heat source (TH), heat sink (TM) and refrigeration (TC) temperatures on the coefficient of performance (COP) and specific cooling power (SCP) of the system are presented. The predicted hydride bed temperature profiles are compared with the experimental data reported in the literature and a reasonably good agreement is observed between them. The optimum operating temperature ranges of each pair of alloys are suggested. For the selected operating temperatures, a maximum COP of 0.66 is predicted for Zr0.9Ti0.1Cr0.9Fe1.1/Zr0.9Ti0.1Cr0.6Fe1.4hydride pair, while LmNi4.91Sn0.15/Ti0.99Zr0.01V0.43Fe0.09Cr0.05Mn1.5hydride pair produces the highest SCP of 53.25W/kg of total mass of the system.