低温相变蓄热装置蓄放热性能的实验研究

Experimental study on characteristics of heat charge and discharge of low temperature phase change heat storage tank

太阳能作为一种间歇式能源,具有间断性和不稳定性。常规的太阳能供热系统往往需要配备相应的辅助热源或采用较大的蓄热装置。针对现有太阳能供热系统水蓄热装置的弊端,制备了一套与太阳能供热系统联用的低温相变蓄热装置。低温相变蓄热装置采用相变温度为47℃的相变材料,利用白天存储的太阳能集热系统采集的热量,在夜间为单个实验室房间供暖,完成了多个完整的蓄放热过程实验,对该装置在太阳能供热系统中的应用进行了可行性分析。

As an intermittent energy source, solar energy is intermittent and unstable. Conventional solar heating systems often need to be equipped with corresponding auxiliary heat sources or use larger heat storage devices. Aiming at the shortcomings of the existing solar heating system water heat storage device, a set of low temperature phase change heat storage device combined with the solar heating system is prepared. The low-temperature phase change heat storage device uses phase change materials with a phase change temperature of 47 ℃, and uses the heat collected by the solar heat collection system stored during the day to heat a single laboratory room at night, completing multiple complete heat storage and release process experiments. The feasibility analysis of the application of the device in the solar heating system was carried out.