Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Water Circulation Characteristics of a Water/Steam Receiver for Solar Power Tower System at Various Heat Fluxes

타워형 태양열 발전 흡수기의 열유속에 따른 수순환 특성 연구

  • Seo, Ho-Young (Dept. of Solar Thermal Research Center, KIER & Dept. of Mechanical Eng., Korea University) ;
  • Kim, Jong-Kyu (Dept. of Solar Thermal Research Center, KIER) ;
  • Kang, Yong-Heack (Dept. of Solar Thermal Research Center, KIER) ;
  • Kim, Yong-Chan (Dept. of Mechanical Eng., Korea University)
  • 서호영 (한국에너지기술연구원, 고려대학교 기계공학과) ;
  • 김종규 (한국에너지기술연구원) ;
  • 강용혁 (한국에너지기술연구원) ;
  • 김용찬 (고려대학교 기계공학과)
  • Published : 2008.04.30
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Abstract

This paper describes water circulation characteristics of a water/steam receiver at various heat fluxes. The water/steam receiver for a solar tower power system is a natural circulation type. Experimental conditions of water and steam were set at a pressure of 5 bar and temperature of $151.8^{\circ}C$. The experimental device for the water/steam receiver consisted of a steam drum, upper/lower header, riser tubes, and downcomer tube. The experiments were conducted by varying heat fluxes in terms of mass flow rate in each riser tube. However, the total mass flow rate on the riser tubes was fixed at 217.4 g/s. For the uniform heat flux, while the water temperature of the steam drum and upper header were kept at steady state, the temperature of the lower header was fluctuated. For the non-uniform heat flux, while the temperature of the steam drum was kept steady state, the temperature difference increased in the right and left side of the upper header, and the temperature of the lower header was fluctuated.

Keywords

References

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