A novel design for a radiative fin array system

Chung, Benjamin T.F.; Zhang, B.X.

doi:10.1016/0016-0032(93)90093-a

Cited by 5 publications

(1 citation statement)

References 10 publications

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“…The approximation states that a convective fin tip can be replaced by an insulated fin tip when the length of the fin is extended by one half of the fin thickness of the fin. Consequently, numerous investigators [2,[13][14][15][16][17][18][19][20], just to mention a few] have assumed the zero temperature gradient at the fin tip which is also adopted in the present analysis, i.e. 0  dr dT @ r = r t (4) In engineering practice, most materials can be considered gray bodies, and the environment temperature is assumed to be the same as ambient temperature, i.e.…”

Section: Governing Equationsmentioning

confidence: 99%

Design Charts for Circular Fins of Arbitrary Profile Subject to Radiation and Convection with Wall Resistances

Zhang¹,

Chung

2012

TOTHERJ

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In this work, the optimization for a radiative-convective annular fin of arbitrary profile with base wall thermal resistances is considered. A fourth order Runge-Kutta method is used to solve the associated non-linear governing equations. Further differentiations yield the optimum heat transfer and the optimum fin dimensions. To facilitate the thermal design, design charts for optimum dimensions are proposed. Furthermore, the fin effectiveness for the optimal annular radiative-convective fins is presented to check the practicality of the design.

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