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http://dx.doi.org/10.3795/KSME-B.2011.35.10.989

Heat-Flux Analysis of Solar Furnace Using the Monte Carlo Ray-Tracing Method  

Lee, Hyun-Jin (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Kim, Jong-Kyu (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Lee, Sang-Nam (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Kang, Yong-Heack (Solar Thermal and Geothermal Research Center, Korea Institute of Energy Research)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.35, no.10, 2011 , pp. 989-996 More about this Journal
Abstract
An understanding of the concentrated solar flux is critical for the analysis and design of solar-energy-utilization systems. The current work focuses on the development of an algorithm that uses the Monte Carlo ray-tracing method with excellent flexibility and expandability; this method considers both solar limb darkening and the surface slope error of reflectors, thereby analyzing the solar flux. A comparison of the modeling results with measurements at the solar furnace in Korea Institute of Energy Research (KIER) show good agreement within a measurement uncertainty of 10%. The model evaluates the concentration performance of the KIER solar furnace with a tracking accuracy of 2 mrad and a maximum attainable concentration ratio of 4400 sun. Flux variations according to measurement position and flux distributions depending on acceptance angles provide detailed information for the design of chemical reactors or secondary concentrators.
Keywords
Concentration; Heat Flux; Monte Carlo Ray-Tracing Method; Solar Furnace;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
Times Cited By SCOPUS : 2
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