含内热源密闭空间两级半导体制冷器瞬态特性分析  

Transient Characteristics of A Two-stage Thermoelectric Cooler with An Internal Heat Source in A Confined Space

作　　者：徐辰欣 陈赵军 孟凡凯[3] XU Chenxin;CHEN Zhaojun;MENG Fankai(China Nuclear Power Operation Technology Corporation,Wuhan 430223,CHN;Three Gorges Yunnan Energy Investment Co.,Ltd.,Chuxiong 675000,CHN;College of Power Engineering,Naval University of Engineering,Wuhan 430033,CHN)

机构地区：[1]中核武汉核电运行技术股份有限公司,武汉430223 [2]三峡集团云南能源投资有限公司,云南楚雄675000 [3]海军工程大学动力工程学院,武汉430033

出　　处：《半导体光电》2024年第3期426-433,共8页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(11974429);海军工程大学自主研发计划项目(2022502210).

摘　　要：针对工作在含内热源密闭空间的空冷和热管式两级热电制冷装置,分别建立了瞬态性能计算模型,得到了制冷空间温度、模块两端温差,以及制冷系数随时间的变化规律;对比两种散热方式对装置特性的影响;分析了工作电流和热电偶热冷两级面积比,对温度、耗时和制冷系数的影响。结果表明:当元件功率为6W时,空冷和热管式制冷器温度分别比无热源时升高了8.28和7.86℃,热管式的制冷温度比空冷式低1.85℃,制冷系数比空冷式高12.12%。In this study,we established transient performance calculation models for aircooled and heat pipe two-stage thermoelectric cooler devices operating in confined spaces with internal heat sources.We determined the variation laws of the cooling space temperature,temperature difference between the two junctions of the module,and cooling coefficient with time as well as compared the effects of the two heat dissipation methods on the device characteristics.We analyzed the effects of the operating current,thermocouple two-stage area ratio,and thermocouple leg length ratio on the temperature,elapsed time,and cooling coefficient.Our results showed that for an internal heat source power of 6W,the temperatures of the air-cooled and heat pipe coolers were 8.28 and 7.86℃higher than that observed without a heat source.Furthermore,the cooling temperature of the heat pipe cooler was 1.85℃lower than that of the aircooled cooler,whereas its cooling coefficient was 12.12%higher than that of the air-cooled cooler.

关 键 词：两级半导体制冷器 瞬态 密闭空间 内热源 散热方式 

分 类 号：TB651[一般工业技术—制冷工程]