A novel design for a radiative fin array system

✍ Scribed by B.T.F. Chung; B.X. Zhang

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 780 KB
• Volume: 330
• Category: Article
• ISSN: 0016-0032
• DOI: 10.1016/0016-0032(93)90093-a

✦ Synopsis

This paper analyzes and optimizes a new design four-fin radiating array in which the horizontaljins have a rectangular profile and the verticalJim can have either a rectangular or triangular profile. The optimum dimensions of the fins are obtained and the results are presented in an extremely simple algebraic form which is very convenient for use by thermal designers. Comparisons are made between the conventional two-fin array and the proposed optimum design of the,four-fin array. It is found that the latter saves about 30% in material ftir a typical emissivity of' the radiative$ns. B. T. F. Chung and B. X. Zhang Greek 6 half the thickness of fin or half the thickness of fin root (m) 6 6/(k/0Ti), dimensionless E emissivity, dimensionless 5 T/T,, dimensionless D Stefan-Boltzmann constant (W/m'. K") 4 J/(aTi), dimensionless Subscript 1 1' 2 2' b, b, Q r variable of the horizontal fin variable of the conjugate horizontal fin variable of the vertical fin variable of the conjugate vertical fin refer to horizontal fin refer to vertical fin refer to total heat transfer refer to parameter r