废热驱动金属氢化物热变换器的性能分析  

Performance analysis of a metal-hydride heat transformer driven by waste heat

作　　者：肖跃雷[1] 傅秦生[1] 张早校[1] 张计鹏[1] 

机构地区：[1]西安交通大学能源与动力工程学院,陕西西安710049

出　　处：《华北电力大学学报（自然科学版）》2004年第6期47-50,共4页Journal of North China Electric Power University：Natural Science Edition

基　　金：国家自然科学基金资助项目(50276052)

摘　　要：以 LaNi4.5Al0.5/LaNi5 为金属氢化物热变换器的工质对,建立了考虑反应器相对质量和比热容、热回收率等因素的金属氢化物热变换器能量分析和 分析模型,分析了热源温度、反应器相对质量和比热容、热回收率以及氢气的转化率对系统性能的影响,并提出了相应的改进措施,从而提高了金属氢化物热变换器的性能。The energy-analysis and its model are established for a metal-hydride heat transformer using LaNi4.5Al0.5/ LaNi5 as working media, in which the relative mass and specific heat capacity of reactors and the efficiency of sensible-heatrecovery etc. are considered. The effects of heat source temperature, the relative mass and specific heat capacity of reactors, the efficiency of sensible-heat recovery and the ratio of hydrogen transfer on system's performance are investigated. Some measures are proposed for improving the performance of metal- hydride heat transformer.

关 键 词：金属氢化物热变换器 性能系数 COP 能量转换材料 工作原理 废热驱动 性能分析 

分 类 号：TK172[动力工程及工程热物理—热能工程]