Experimental research on refrigeration characteristics of a metal hydride heat pump in auto air-conditioning
Experimental research on refrigeration characteristics of a metal hydride heat pump in auto air-conditioning
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汽车空调金属氢化物热泵制冷特性实验研究
DOI：
10.1016/j.ijhydene.2006.09.038
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发表时间：
2007
影响因子：
7.2
通讯作者：
Hongmin Liu
中科院分区：
文献类型：
--
作者：
Jiujian Ni;Hongmin Liu
对金属氢化物热泵进行了三种工作温度下的制冷实验。高压反应床填充LaNi4.61Mn0.26Al0.13，低压反应床填充La0.6Y0.4Ni4.8Mn0.2。结果表明，高压反应床有4个工艺流程，低压反应床有3个工艺流程。三种操作温度下的最低冷藏温度分别为6.5、2.5和1.9°C。冷却功率输出不能保持恒定，并随着制冷过程的进行而变小。随着温度的增加，高反应床的制冷循环时间、温度和压力都在上升，COP和制冷功率输出不断增加。在Th/Tm/Tl=150°C/ 30-32°C/20°C的工作温度下，静态范霍夫图与实际动态lnP-1000 /T关系存在较大偏差。
Refrigerating experiments of metal hydride heat pump were conducted under three operating temperatures. The high pressure reaction bed is filled with LaNi4.61Mn0.26Al0.13, while the low pressure reactor is filled with La0.6Y0.4Ni4.8Mn0.2. The results show that there are four processes for high-pressure reaction bed, and three processes for low-pressure reaction bed. The lowest refrigerating temperatures at the three operating temperatures are 6.5, 2.5, and 1.9∘C, respectively. Cooling power output cannot be kept constant and becomes smaller as the refrigerating process goes on. As Thincreases, the refrigeration cycle time, temperature and pressure of high reaction beds all climb and COP and cooling power output keep increasing. There is a great deviation between the static van’t Hoff plots and the actual dynamic lnP–1000/T relations under the operating temperature of Th/Tm/Tl=150∘C/30–32∘C/20∘C.