建立了组合式相变材料蓄热系统物理模型，在忽略显热的假设条件下研究了相变温度呈线性分布的组合式相变材料蓄热系统传热特性，得出了最优线性相变温度分布，并采用考虑显热的数值计算（有限差分法）证实了理论分析得出的最优相变温度与实际相变温度分布几乎相同。 The physical model of the heat storage system of the combined phase change material was established. The heat transfer characteristics of the composite phase change material heat storage system with a linear phase transition temperature were studied under the assumption of neglecting the sensible heat. The optimal linear phase transition The temperature distribution and the numerical calculation (finite difference method) considering the sensible heat confirm that the optimal phase transition temperature obtained by theoretical analysis is almost the same as the actual phase transition temperature distribution.