Abstract
In this paper, an integrated device of solar energy thermal storage is proposed. The utility model avoids the problem of excessive energy loss of the heat exchange system caused by the separation of the collector and the phase change heat storage device. The mathematical model of the device is established and verified by experiments. The comparison between the experimental results and the calculated results shows that numerical analysis method is feasible and accurate. Based on the model, the effects of the thermal conductivity, the convective heat transfer coefficient and the flow rate of heat transfer fluid on the heat storage efficiency were analyzed.
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