한국태양에너지학회:학술대회논문집

The Korean Solar Energy Society (한국태양에너지학회)
권호 표지

Characteristic of the Radiation Heat Flux Distribution for the KIER Solar Furnace

KIER 태양로의 열유속 분포 특성

  • Chai, Kwan-Kyo (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Lee, Hyun-Jin (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Kim, Jong-Kyu (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Yoon, Hwan-Ki (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Lee, Sang-Nam (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Kang, Yong-Heack (Dept. of Solar Thermal and Geothermal Research Center, KIER) ;
  • Seo, Tae-Beom (Dept. of Mechanical Eng., Inha University)
  • 채관교 (인하대학교 기계공학과, 한국에너지기술연구원) ;
  • 이현진 (한국에너지기술연구원) ;
  • 김종규 (한국에너지기술연구원) ;
  • 윤환기 (한국에너지기술연구원) ;
  • 이상남 (인하대학교 기계공학과, 한국에너지기술연구원) ;
  • 강용혁 (한국에너지기술연구원) ;
  • 서태범 (인하대학교 기계공학과)
  • Published : 2011.11.24
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Abstract

Concentration characteristics of the KIER solar furnace are analyzed with a heat flux measurement technique. Total heat capacity of 40kW was confirmed within 1.04% average error, and the normalized maximum heat flux of 3,452 $kW/m^2$ was proved. Non-Gaussian flux distribution in the vertical direction implies that reflectors should not be random rather inclined downwards. Moreover, we characterized flux distribution variations with furnace blind opening ratio, distance from the focal plane, and misalignment of the measurement system. Based on the results, the heat flux distribution can be simply estimated once reflectivity and direct normal insolation values are known. This study will be helpful to the design and the performance evaluation of receivers or chemical reactors.

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