This study investigates the bulk radiative properties of absorbing and scattering fibers. This type of problem can be applied to a group of geometrically similar applications including thermal radiators, insulation, and tube-and-shell heat exchangers. The specific application studied here is an ordered array of carbon fibers acting as a radiating fin for a space-based heat rejection system. High total emissivity is beneficial for this application, so this study focuses on how geometric factors affect the effective emissivity of an array of fibers. Photon scattering among fibers in an array can result in an effective emissivity greater than the emissivity of the fiber surfaces themselves.
Predicting the Effective Emissivity of an Array of Aligned Carbon Fibers Using the Reverse Monte Carlo Ray-Tracing Method
Contributed by the Heat Transfer Division of ASME for publication in the JOURNAL OF HEAT TRANSFER. Manuscript received March 21, 2016; final manuscript received July 21, 2016; published online August 30, 2016. Assoc. Editor: Zhuomin Zhang.
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Tomboulian, B. N., and Hyers, R. W. (August 30, 2016). "Predicting the Effective Emissivity of an Array of Aligned Carbon Fibers Using the Reverse Monte Carlo Ray-Tracing Method." ASME. J. Heat Transfer. January 2017; 139(1): 012701. https://doi.org/10.1115/1.4034310
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