Based on the irreversible Brayton refrigeration cycle model, the satisfied equation about the optimal relation between the cooling rate and the coefficient of performance is derived.

• 基于不可逆布雷顿制冷循环模型,导出循环制冷率和性能系数之间优化关系所应满足的方程,利用数值解,研究内不可逆性和传热不可逆性对优化性能的影响。