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本文主要通过实验对比研究铝翅片和泡沫金属铜对石蜡的储热性能和储热密度的综合影响,分别测试封装纯石蜡、封装石蜡的同时加装平行铝翅片、将石蜡填充到泡沫金属铜空隙三组散热器的热源温度上升曲线。实验得出:加装铝翅片和填充泡沫金属铜能使热源与石蜡的平均温差分别降低76%和18%,同时使储热阶段热源的平均温度分别降低22.2℃和9.5℃,因此加装铝翅片增强石蜡储热性能强于填充泡沫金属铜。加装铝翅片和填充泡沫金属铜导致整体储热密度分别减少40.3%和4.2%,从储热密度方面考虑泡沫金属铜明显优于铝翅片。因此我们需要综合考虑储热性能和储热密度的影响选择最合适的增强石蜡储热的方式。
In this paper, we mainly study the combined effects of aluminum fins and foamed metal copper on the thermal storage properties and heat storage density of paraffin by experiments. The pure paraffin is encapsulated, the paraffin is encapsulated, the parallel aluminum fins are installed, and the paraffin is filled into the foamed metal Copper gap three sets of heat sink heat source temperature rise curve. The experiment shows that the installation of aluminum fins and foam metal copper can reduce the average temperature difference between heat source and paraffin by 76% and 18% respectively, and meanwhile reduce the average temperature of heat source during storage by 22.2 ℃ and 9.5 ℃, respectively Aluminum fin reinforced paraffin heat storage performance is better than filled foam metal copper. The installation of aluminum fins and the filling of foamed metal copper resulted in a decrease of 40.3% and 4.2% of the overall heat storage density, respectively. Foam metal copper was significantly superior to aluminum fins in terms of heat storage density. Therefore, we need to consider the impact of heat storage performance and heat storage density to choose the most suitable way to enhance the heat storage of paraffin.