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摘 要： 在忽略汤姆逊效应的情形下，推导出半导体制冷臂的传热微分方程，通过数值模拟计算，分析了各效应的在不同工作电流下的影响，及其冷、热端换热系数和工作电流对半导体制冷性能的综合影响，并找出关健因素。提出了系统的最佳工况条件，在提高制冷性能的同时，节约成本。 关键词： 半导体制冷 换热系数 工作电流 制冷性能 Numerical Analysis And Optimization Of Operating Conditions Based On The Performance Of Semiconductor Cooling Shen Limei Chen Huanxin Shu Zhaohui Li Aibo Department of Refrigeration nbsp; Abstract: Ignoring the effect of Thomson, the heat transfer differential equation of the arm of semiconductor cooling was derived. By using numerical simulation method, the effects under different operating current, the heat transfer coefficient of the cold and hot end, and the combined effects operating current to the semiconductor cooling performance were discussed. In addition, the critical factors were found out and the best operating condition was proposed to improve the cooling performance and cut the cost. Keywords : semiconductor cooling heat transfer coefficient operating current refrigerating performance