Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Experimental Study on Film Boiling Heat Transfer of Spray Cooling for Inclined heat transfer Surface

경사면에서의 분무냉각 막비등 열전달에 관한 실험적 연구

  • Kim, Yeung-Chan (School of Mechanical Engineering, Andong National University)
  • 김영찬 (안동대학교 기계공학부)
  • Published : 2010.01.10
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Abstract

The film boiling heat transfer was experimentally investigated for the water sprays impacting on an inclined hot surface. Full cone spray nozzles were employed for the spray cooling experiment, and experiments were made for different inclination angles of $\theta=0^{\circ}$, $15^{\circ}$, $30^{\circ}$ and $45^{\circ}$. The experimental results show that, in the downstream region of the inclined hot surface, increasing the inclination angle increases the local heat flux slowly because of increasing the number of rebound droplets. However, the inclination angle of heat transfer surface had no remarkable effect on the local heat flux of spray cooling under the present test conditions.

Keywords

References

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