应用热电制冷元件的新型磁制冷系统数值模拟研究  

Numerical Simulation of a New Magnetic Refrigeration System Using Thermoelectric Refrigeration Elements

作　　者：黄红梅 李振兴[1,2,3] 李珂 海鹏[1,3] 郑文帅 戴巍[1,2] 黄荣进 周敏 沈俊[1,2,3] HUANG Hongmei;LI Zhenxing;LI Ke;HAI Peng;ZHENG Wenshuai;DAI Wei;HUANG Rongjin;ZHOU Min;SHEN Jun(Key Laboratory of Cryogenics,Technical Institute of Physics and Chemistry,Chinese Academy of Sciences,Beijing 100190,China;University of Chinese Academy of Sciences,Beijing 100049,China;Ganjiang Innovation Academy,Chinese Academy of Sciences,Ganzhou 341000,Jiangxi,China)

机构地区：[1]中国科学院理化技术研究所低温工程学重点实验室,北京100190 [2]中国科学院大学,北京100049 [3]中国科学院赣江创新研究院,江西赣州341000

出　　处：《真空与低温》2022年第3期296-302,共7页Vacuum and Cryogenics

基　　金：国家重点研发计划(2019YFA0704900);国家自然科学基金(51925605);中国科学院基础前沿科学研究计划(ZDBSLY-JSC017);中国科学院科研仪器设备研制项目(YJKYYQ20200076);中国博士后科学基金(2021T140681)。

摘　　要：借助COMSOL多物理场耦合软件,构建了使用热电制冷元件的新型磁制冷二维瞬态模型,研究了输入电流、利用系数及制冷单元数等参数对新型磁制冷系统制冷性能的影响。结果表明:制冷功率和温跨均随输入电流增大呈比例增大,对于不同的输入电流,最佳COP对应不同的利用系数;制冷功率和COP均存在最佳的利用系数,且制冷功率的最佳利用系数随输入电流的增大而增大;制冷功率和COP均随制冷单元数的增加而增大。研究结果为新型磁制冷系统的机理和实验研究提供有价值的参考。A two-dimensional transient model of a new magnetic refrigeration system using thermoelectric refrigeration elements was established using COMSOL Multiphysics.The effects of input current,utilization factor,and number of refrigeration units on the performance of the new system were studied.The results showed that:both the cooling power and the temperature span increase proportionally with the increase of the input current.For different input currents,the optimum COP corresponds to different utilization factor.The optimal utilization factor of refrigeration power and COP is found,and the optimal utilization factor of refrigeration power increases with the increase of input current.The cooling power and COP increases as the number of refrigeration units increases.The simulation results provide valuable reference for the mechanism and experimental study of the new magnetic refrigeration system.

关 键 词：室温磁制冷 热电制冷 新型磁制冷 数值模拟 性能优化 

分 类 号：TB65[一般工业技术—制冷工程]