Optimum design for a radiative fin array system with least horizontal dimension

✍ Scribed by B.T.F. Chung; B.X. Zhang

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 919 KB
• Volume: 330
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(93)90082-6

✦ Synopsis

The present research attempts to optimize a radiating four-fin fin array system such that the total horizontal space occupied by the system is minimum. The horizontalhns of the,fin array have a rectangular projile; while the vertical$ns can be either rectangular or triangular in projile. The proposed optimized system can be shortened b_v about 30% in the horizontal dimension compared to the conventional two-fin system for the practical& surface emissitirity. The optimum dimensions qf the$n array arepresented in simple workingformulae or in the form qf design charts in order to facilitate the thermal designers. B. T. F. Chung and B. X. Zhang Greek "J "1 = ~,,/(~O,,,~,)hlnckr dimensionless 6 half the thickness of fin or half the thickness of fin root, m 8 G/(k/oTi), dimensionless 8 emissivity, dimensionless t T/T,, dimensionless D Stefan-Boltzman constant, W mm * K -4 C#J J/(aTi), dimensionless @ constraint function Subscript I variable of the horizontal fin 1' variable of the conjugate horizontal fin 2 variable of the vertical fin 2' variable of the conjugate vertical fin b, refer to the fin height of horizontal fin h2 refer to the fin height of vertical fin 6, refer to half thickness of horizontal fin Superscript * optimum value