沈吟秋,郭宜祜

• 1:大连工学院
• 2:大连工学院

摘要(Abstract)：

本研究包括三个部分:(1)采用电加热方式研究水平管外降膜蒸发;(2)采用蒸汽加热方式研究水平管外降膜蒸发;(3)研究水平管内的蒸汽冷凝。本实验除了对光滑管进行传热研究以外,还采用多孔表面管以强化蒸发侧的传热,在管内壁插入线圈以强化冷凝侧的传热。研究结果表明,水平光滑管降膜蒸发时的传热系数比垂直光滑管以及池式沸腾管的都高得多。而多孔表面水平管的蒸发膜系数又比光滑水平管的高100～50%,其值高达40kW/m~2·℃。水平管外壁为多孔表面时,内壁附有线圈的总传热系数要比内壁为光滑面的高17%,而压力降只高20%。

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Abstract:

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基金项目(Foundation): 中国科学院科学基金

作者(Author): 沈吟秋,郭宜祜

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