2成分混合液による潜熱蓄熱に関する研究

概要

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Latent heat thermal energy storage is investigated by using a binary mixture of p-C_6H_4Cl_2 and p-C_6H_4Br_2 as a heat storage material. In solidification of a binary mixture, the milting temperature changes due to the variation of the mixing ratio are caused by the segregation. Two solidification models are proposed for a theoretical analysis. In the first model, the solidification increases in the direction of the heat flow. In the other, it is assumed that the segregation grows perpendicularly to the heat flow, which corresponds to a dendritic solidification. The former model can be well applied in the low mixing ratio of p-C_6H_4Cl_2 and the latter can be used in the high mixing ratio. The temperature profile also changes in accordance with the initial mixing ratio of the two materials; however, the variation of the transfered heat from outside with time is quite similar to that of pure material. The effect of free convection on heat storage performance is also investigated by changing the direction of the heat input or output.
一般社団法人日本機械学会の論文
1986-07-25