旋转相变蓄热装置蓄热特性研究

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中图分类号：S214.3 文献标识码：A 文章编号：2095-2953（2025）07-0038-08

Research on Heat Transfer Characteristics of Rotating Phase Change Heat Storage Device

ZHANG Ze-hui， ZHANG Lin * （CollegeofMechanicalandElectricalEngineering，NortheastForestryUniversity，HarbinHeilongjiang15O4O，China）

Abstract：A new greenhouse often uses a phase change heat storage device to control the room temperature，but the lowthermal conductivityof the phase change materialleads to the poor melting performance of the traditional phase change heat storage device.In order to improve the melting performance of PT，arotating mechanism was integrated and numerical simulations were conductedto studythe effcts of diferent rotation speeds onthemelting time，melting rate，temperature and total heat absorption.compared with the non-rotating phase change heat storage device， the melting time of the rotating phase change heatstorage device is significantly reduced.Within a certain range of rotation speeds，the melting rate of the phase change heat storage device first increases and then decreases with the increase of rotation speed，but it is higher than thatof thenon-rotating device.By measuring the fixed-point temperature inside the device，it is verified that without rotation，a lower slow-melting zone exists in the phase change heat storage device due tothe thermal buoyancy of natural convection，and rotation can improve the situationof the lower slow-melting zone.Combining experiments and numerical simulations，itcan be seen that rotation significantly improves the melting rate of the phase change heat storage device，makes the temperature distribution more uniform， and changes the single heat transfer mechanism in the case of no rotation.

Key words：thermal energy storage; phase change;numerical analysis ; greenhoust

利用相变蓄热装置实现潜热储能应用的优点使相变蓄热技术在温室大棚中拥有广阔的应用前景[1]。（剩余8759字）