基于热管散热的多级热电制冷器性能分析  

Performance analysis of multistage thermoelectric cooler based on heat pipe dissipation

作　　者：孟凡凯[1] 孙悦桐 周林 MENG Fankai;SUN Yuetong;ZHOU Lin(College of Power Engineering,Naval Univ.of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学动力工程学院,武汉430033

出　　处：《海军工程大学学报》2024年第4期1-7,共7页Journal of Naval University of Engineering

基　　金：国家自然科学基金资助项目(11974429);海军工程大学自主立项基金资助项目(2022502210)。

摘　　要：为了研究几何结构对多级热电制冷性能的影响,建立了基于热管散热的多级热电制冷器有限时间热力学模型,提出模块利用系数和协调性能系数两个性能评价指标,并采用数值模拟的方法研究了热电偶比例系数和级数对热电制冷器性能的影响,得到了不同几何结构下装置性能指标随工作电流的变化规律。结果表明:比例系数为2的六级热电制冷器的制冷温差和制冷量可分别达到135.3℃和0.34 W;较小的比例系数和工作电流,可以有效实现制冷能力和经济性能的统一。设计制作了基于热管散热的四级热电制冷器样机,当环境温度分别为16℃和26℃时,实测冷端温度分别为-76℃和-69℃。In order to study the effect of geometric structure on performance,a finite time thermodynamic model of multistage thermoelectric cooler based on heat pipe dissipation was established.Two performance evaluation indexes of module utilization factor and coordination performance factor were proposed.The effect of proportional coefficient of thermocouple and the number of stages on the performance of thermoelectric cooler unit was analyzed using numerical simulation methods.The variation law of device performance index with working current with different geometric structures was obtained.The results show that the cooling temperature difference and cooling capacity of the six-level thermoelectric cooler with a proportional coefficient of 2 can reach 135.3℃and 0.34 W respectively.The smaller proportional coefficient and working current can achieve the unification of cooling capacity and economic performance effectively.A prototype of a four-stage thermoelectric cooler based on heat pipe heat dissipation was designed and manufactured.The measured cold end temperatures are-76℃and-69℃when the ambient temperatures are 16℃and 26℃respectively.

关 键 词：热电制冷 多级热电制冷器 热管 有限时间热力学 性能优化 

分 类 号：TN377[电子电信—物理电子学]