Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Heat transfer performance with different fills as volumetric air receivers for concentrated solar radiative energy

태양 복사에너지 충진재 변화에 따른 고온 태양열 공기식 흡수기의 열전달 성능 해석

  • Lee, Ju-Han (Graduate School, Department of Mechanical Engineering, Inha University) ;
  • Kim, Yong (Graduate School, Department of Mechanical Engineering, Inha University) ;
  • Jeon, Yong-Han (Graduate School, Department of Mechanical Engineering, Inha University) ;
  • Seo, Tae-Beom (Department of Mechanical Engineering, Inha University) ;
  • Kang, Yong-Heack (Korea Institute of Energy Research)
  • 이주한 (인하대학교 기계공학과 대학원) ;
  • 김용 (인하대학교 기계공학과 대학원) ;
  • 전용한 (인하대학교 기계공학과 대학원) ;
  • 서태범 (인하대학교 기계공학부) ;
  • 강용혁 (한국에너지기술연구원 고온태양열연구팀)
  • Published : 2007.06.30
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Abstract

The heat transfer characteristics of solar tower receivers are experimentally investigated with receiver shapes. Generally, these become different according to the shapes and materials of the volumetric air receiver. In order to study these effects, the apparatus adopting laminated mesh and honeycombs as the volumetric air receiver is proposed. The receiver consists of laminated mesh (diameter; 100 mm, thickness; 1 mm), honeycombs (diameter; 100 mm, thickness; 30 mm) inserted into ceramic tube (inside diameter; 100 mm, outside diameter; 120 mm, length: 1000 mm). To apply heat to the receiver, an electric heater is used. To find out the heat transfer characteristics of the laminated mesh, the air temperatures are obtained by installing 3 thermocouples on each layer, dividing ceramic tube into 4 layers. Also, a radiative shield is installed to measure the only air temperature. The data for laminated mesh and honeycomb thickness of 30, 60, 90 mm are obtained. The results show that the temperature of layer 3 is higher than those of layer 2 and layer 1.

Keywords

References

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