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Abstract <p>Experimental study on heat transfer in bubbly flow in an inclined pipe was performed. The angle of pipe inclination varied from 12° to 80° relative to horizontal. Experiments were performed for two values of superficial liquid velocity. It was shown that the highest values of heat transfer correspond to intermediate angles of inclination. The addition of gas phase results in a significant increase of heat transfer even at low gas flow rates. Results obtained are qualitative similar to those obtained in an inclined rectangular channel. However, the quantitative data are different due to different geometry of the inner wall of the channel.</p>

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Effect of Inclination Angle on Heat Transfer in Upward Bubbly Flow in a Pipe

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • O. N. Kashinsky,
  • L. S. Timkin,
  • A. S. Kurdyumov

摘要

Abstract

Experimental study on heat transfer in bubbly flow in an inclined pipe was performed. The angle of pipe inclination varied from 12° to 80° relative to horizontal. Experiments were performed for two values of superficial liquid velocity. It was shown that the highest values of heat transfer correspond to intermediate angles of inclination. The addition of gas phase results in a significant increase of heat transfer even at low gas flow rates. Results obtained are qualitative similar to those obtained in an inclined rectangular channel. However, the quantitative data are different due to different geometry of the inner wall of the channel.