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对冰蓄冷空调中广为采用的内融冰式蓄冰管的融冰过程进行了数值模拟,运用焓法建立了融冰动态数学模型并进行求解,研究了冰层融化过程中融化水的自然对流,并分析了相关参数下自然对流对融冰传热过程的影响.结果表明:在蓄冰管的底部可忽略自然对流影响,而在蓄冰管的顶部融冰的初始阶段,自然对流影响较小,但是随着融冰过程的进行,自然对流在蓄冰管传热过程中的比重越来越大.
The ice melting process of the ice melting ice storage tube which is widely used in ice storage air conditioning is numerically simulated. The dynamic ice melting model is established by enthalpy method and solved. The convection and the influence of natural convection on the heat transfer process were analyzed.The results show that the natural convection can be neglected at the bottom of the ice storage pipe and the natural convection Smaller, but with the melting process, the natural convection in the ice storage pipe heat transfer process is more and more.