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The Optimum Dimensions of Radiative Spines

by A. Razani, Univ of New Mexico, United States,
H. Zohoor, Univ of New Mexico, United States,



Document Type: Proceeding Paper

Part of: Engineering, Construction, and Operations in Space II

Abstract:

Radiative pin fins (spines) are important in conjunction with heat rejection systems for space applications. In the design of radiators for space applications, spines possessing minimum mass are of great interest. In this study a conducting-radiating spine with an arbitrary profile is considered. The profile is assumed to be a function of the temperature in the spines by introducing a free parameter. With this choice of profile, the nonlinear heat transfer equation for the conducting-radiating spine can be integrated analytically. Using this method, a nonlinear integral equation for the temperature of the spine is obtained. This equation can be conveniently solved numerically to find the optimum dimensions of the spine.

Subject Headings: Heat transfer | Space exploration | Temperature effects | Temperature distribution | Radiation | Optimization models | Electric power

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