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对圆球形相变储冷器（又称储冰球）的相变传热问题进行了详细分析，采用焓法模型对常用相变介质水在球内的凝结过程进行了数值求解，得出了第一类边界条件下相变界面位置变化与界面移动速度变化以及相变时间与球径和传热温差的关系等结果，可以为圆球形及其它形状的相变储冷器的设计和分析计算提供理论依据与参考．
The phase change heat transfer problem of the spherical phase change condenser (also known as ice hockey ball) is analyzed in detail. The enthalpy method is used to numerically solve the condensation process of common phase change medium water in the ball. The relationship between the position change of a phase change interface and the interface moving speed and the relationship between the phase transition time and the ball diameter and the heat transfer temperature difference under a type of boundary conditions can be provided for the design and analysis of the spherical and other shape phase change condenser Theoretical basis and reference.