相变材料的低导热性是相变储热器传热过程的主要障碍。在相变材料侧进行强化,是目前提升相变储热器蓄热速率的主要方法。本文采用有限容积法对带有环状翅片的管式相变储热器的蓄热过程进行了数值模拟,得到了温度场、相界面随时间的变化。在此基础上,本文对翅片导热系数、翅片厚度和翅片间距等影响储热速率的因素进行了计算和分析。为相变储热器的优化设计提供了一定的参考。 The low thermal conductivity of phase change materials is a major obstacle to the heat transfer process of phase change thermal storage. In the phase-change material side to strengthen, is to enhance the phase change heat storage heat storage rate of the main methods. In this paper, the finite volume method was used to simulate the heat storage process of tubular phase change thermal storage with annular fins, and the change of temperature field and phase interface with time was obtained. On this basis, the factors that affect the heat storage rate, such as the fin thermal conductivity, fin thickness and fin spacing, are calculated and analyzed. It provides a reference for the optimization design of phase change heat storage.