热电制冷器冷热端传热特性分析  

Analysis of Heat Transfer Characteristics at Cold and Hot Sides of Thermoelectric Refrigerator

作　　者：王衍金[1] 罗清海[1] 熊军[1] 柳建祥[1] 张鹏飞[1] 

机构地区：[1]南华大学城市建设学院,湖南衡阳421001

出　　处：《煤气与热力》2011年第1期4-8,共5页Gas & Heat

基　　金：湖南省教育厅重点科研项目(08A061);南华大学博士启动基金项目(506XJQ06002)

摘　　要：通过数值模拟,分析了冷热端传热对热电制冷器性能的影响。根据制冷量调整冷热端散热方式和强度,能较好地提高热电制冷器性能和节能效益。当制冷量较大时,单纯改变散热器肋片表面传热系数效果并不明显,而改变换热介质温度效果更佳,且热端比冷端效果更明显。The influence of heat transfer at cold and hot sides on performance of thermoelectric refrigerator is analyzed by numerical simulation. The performance and energy saving benefit of thermoelectric refrigerator can be significantly improved by adjusting the heat radiation mode and intensity at cold and hot sides according to refrigerating capacity. When refrigerating capacity is large, the efficiency of changing the temperature of heat exchange medium is better than that of only changing the heat transfer coefficient on surface of radiator fins, and the efficiency at hot side is more obvious than that at cold side.

关 键 词：数值模拟 热电制冷器 散热强度 制冷性能 

分 类 号：TU995[建筑科学—供热、供燃气、通风及空调工程]