無機水和物を用いる蓄熱カプセルの放熱特性に関する研究 : 第2報, 結晶核の生成と成長を考慮した放熱特性の検討

概要

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Analytical and experimental investigations were performed on the heat removal process of a thermal energy storage capsule, using gelled Glauber salt. In the analysis, the process was approximately treated as a heat production phenomenon due to the crystalization from a solution. The case of the inital temperature higher than the saturation temperature of the encapsuled solution was discussed, and the numerical analyses were performed, approximating the cooling process by two steps. In the first step, the nucleation theory of the crystal in the supersaturated solution was considered, until the amount of the nuclei exceeded the critical value. Then, in the second step, the process was approximated as the relaxation phenomenon where the crystal grew around crystal nuclei. The results of the numerical solution, concerning the heat flux variation at the capsule wall, and the critical value of the amount of the nuclei, agreed well with the experimental results.
1996-12-25