具有回热的电化学制冷机的性能分析  

Performance Analysis of a Thermally Regenerative Electrochemical Refrigerator

作　　者：隆瑞[1] 李保德[1] 谢攀[1] 刘志春[1] 刘伟[1] 

机构地区：[1]华中科技大学能源与动力工程学院,武汉430074

出　　处：《工程热物理学报》2016年第10期2043-2047,共5页Journal of Engineering Thermophysics

基　　金：国家重点基础研究发展计划(No.2013CB228302)

摘　　要：本文基于有限时间热力学方法对具有回热的电化学制冷机性能进行了研究。系统的分析了参数对制冷机性能的影响。结果表明:电池的等温系数和电量密度越大越高,其性能系数和制冷功率越高。同时制冷机的工作范围也越广。存在最佳的高低温工作温度使制冷机的制冷功率,但是高性能的回热器不能显著增加制冷机的性能。冷热源温度对之比对最大制冷功率时制冷机的性能系数没有显著的影响,考虑到实际需求,制冷机应工作于最大制冷功率与最大性能系数之间,本文对电化学制冷机的设计和改进具有重大指导意义。A performance analysis of a thermally regenerative electrochemical refrigerator（TRER）was systematically investigated based on finite time thermodynamics.Results revealed that the larger the isothermal coefficients and specific charge capacity,the higher the coefficient of performance（COP） and larger cooling power.Hence the operating range is wider.There exist appropriate working temperatures of the cell leading to the maximum cooling power.However a better regenerator could not guarantee higher performance of the TRER.The temperature ratio of the hot and cold reservoirs did not impact the COP under the maximum cooling power condition.The performance of the TRER should be located between the maximum cooling power and maximum COP to meet the actual demand.This paper might serve as a guidance to the design and improvement of TRER systems.

关 键 词：电化学制冷机 性能系数 制冷功率 

分 类 号：TK124[动力工程及工程热物理—工程热物理]