Abstract
Traditional rectangular fins will cause the area between the two fins to be difficult to heat and become a “dead zone”. In this paper, inspired by the shape of branches, a novel tree-shaped fin is put forward to promote the heat release property TTLHSS. The exotherm process of TTLHSS with rectangular fins and tree fins is numerically calculated by using Ansys Fluent software. In addition, the TTLHSS liquid fraction diagram, liquid fraction change curve, average temperature, heat release time, and total heat release were analyzed. The novel fin can significantly improve the heat release property of TTLHSS and accelerate the exotherm rate. Compared with the TTLHSS with straight fins, the PCM absolute solidification time in the TTLHSS with new tree-like fins is decreased by 43.1%, and the full heat release is slightly increased. This study provides the direction for the fin design of TTLHSS.
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