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Optimum design of longitudinal rectangular fins and cylindrical spines with variable heat transfer coefficient

Journal Article · · Heat Transfer Engineering; (United States)
;  [1]
  1. Univ. of Akron, OH (United States). Dept. of Mechanical Engineering
An integral approach is extended to determine the optimum dimensions for rectangular longitudinal fins and cylindrical pin fins by incorporating transverse heat conduction. The effects of variable heat transfer coefficient and heat transfer from the fin tip are also taken into account. The mathematical expression for optimum dimension ratio thus obtained is found to be as simple as that of the classical one-dimensional approach, but the accuracy of numerical results is improved significantly. The same approach is then utilized for solving for the optimum dimensions of a cylindrical pin fin. To facilitate thermal designers, numerous design charts are presented according to the nature of the flow, the boundary condition at the fin tip, and the types of heat transfer under consideration.
OSTI ID:
6076072
Journal Information:
Heat Transfer Engineering; (United States), Journal Name: Heat Transfer Engineering; (United States) Vol. 14:1; ISSN 0145-7632; ISSN HTEND2
Country of Publication:
United States
Language:
English

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