Proceedings of the KSME Conference (대한기계학회:학술대회논문집)

The Korean Society of Mechanical Engineers (대한기계학회)
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Thermal and Fluid Flow of the air layer in a solar collector

태양열 집열판 공기층의 열 및 유체유동

  • 배강열 (경상대학교 대학원) ;
  • 이중섭 (경상대학교 대학원) ;
  • 이광성 (경상대학교 대학원) ;
  • 정효민 (경상대학교 수송기계공학부, 해양산업연구소) ;
  • 정한식 (경상대학교 수송기계공학부, 해양산업연구소)
  • Published : 2001.06.27
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Abstract

This study represents numerical analysis on the thermal and fluid flow of the air layer in a solar collector. The boundary conditions was assumed that the top and bottom wall of the air layer have a heating and cooling surface. respectively. and this calculation model have a solid body with a cooling temperature of $20^{\circ}C$. As the results of simulations. the magnitudes of the velocity vectors and isotherms are increased proportionally to the tilt angles. As the tilt angle is increased. the mean Nusselt numbers are increased and the maximum value of the mean Nusselt number was appeared at tilt angle ${\theta}=75^{\circ}$.

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