Publicado 18 números por año
ISSN Imprimir: 1064-2285
ISSN En Línea: 2162-6561
Indexed in
OPTIMIZATION OF HEAT TRANSFER THROUGH ANNULAR FINS WITH A THERMODEPENDENT THERMAL CONDUCTIVITY AND HEAT TRANSFER COEFFICIENT
SINOPSIS
A numerical investigation based on the finite volume method is undertaken in order to study heat transfer through an annular fin of different cross sections (rectangular, triangular, hyperbolic, and parabolic). The validation of the computing code is confirmed by comparing the present results with those obtained from analytical and numerical solutions found in the literature. The first part of the study consists of examining the fin's geometrical parameters effect, i.e., the reduced length R and the characteristic parameter mf on its efficiency. The emphasis is put thereafter on the effect of the thermal dependence of the fin's thermal conductivity, then that of the heat transfer coefficient, and, finally, the simultaneous variation of both of them. An optimization of the fin's dimensions in the case of thermodependent properties is then undertaken. When considering only the fin's efficiency in cases of constant and thermodependent properties, it appears that the annular fin of rectangular cross section has a significant efficiency in comparison with the three other geometrical forms but when optimizing the fin's dimensions, the concave parabolic fin seems to be more efficient and, thus, heat transfer is more enhanced.
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Wei Hongyu, Cong Tao , Jiang Chen , Zhou Wenxue , Bai Bofeng, HEAT TRANSFER ENHANCEMENT OF A PARTIALLY SERRATED TWISTED FINNED TUBE WITH NON-GROOVING ON THE LEEWARD SIDE , Journal of Enhanced Heat Transfer, 29, 4, 2022. Crossref