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Flux Density Distribution of the Dish Solar Concentrator (KIERDISH II)  

Kang, Myeong-Cheol (Advanced Solar Thermal Research Center, Korea Institute of Energy Research)
Kang, Yong-Heack (Advanced Solar Thermal Research Center, Korea Institute of Energy Research)
Yoo, Seong-Yeon (Department of Mechanical Design Engineering, Chungnam National University)
Publication Information
Journal of the Korean Solar Energy Society / v.24, no.4, 2004 , pp. 11-18 More about this Journal
Abstract
A solar concentrator, named KIERDISH II, was built at KIER in order to investigate the feasibility of high temperature solar energy application system. The constructed concentrator is a dish type solar concentrator with a focal length of 4.68m and a diameter of 7.9m. To successfully operate KIERDISH II, optimal design of the absorber is very important and flux density distribution has to be known. The focal flux density distribution on the receiver was measured. We have observed the shape and size of flux images and evaluated percent power within radius. Flux density distribution is usually measured by a CCD(charge coupled device) camera and a radiometer. In this paper we present a flux mapping method to estimate the characteristic features of the flux density distribution in the focal region of solar concentrator. The minimum radius of receiver is found to be 0.15m and approximately 90% of the incident radiation is intercepted by receiver aperture.
Keywords
Dish Solar Concentrator; focal region; flux density distribution; absorber, receiver;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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