Experimental study of falling film evaporation heat transfer on superhydrophilic horizontal-tubes at low spray density

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• 作者：Yi Zheng ; Xuehu Ma ; ^{xuehuma@dlut.edu.cn} ; Yun Li ; Rui Jiang ; Kai Wang ; Zhong Lan ; Qianqing Liang
• 关键词：Falling film evaporation ; Horizontal tube ; Superhydrophilic surface ; Heat transfer enhancement ; Low spray density
• 刊名：Applied Thermal Engineering
• 出版年：2017
• 出版时间：25 January 2017
• 年：2017
• 卷：111
• 期：Complete
• 页码：1548-1556
• 全文大小：2065 K
• 卷排序：111

文摘

The superhydrophilic surfaces are prepared with contact angle close to 0°. The operating range of falling film evaporation is greatly extended. Superhydrophilic modification enhances the heat transfer coefficients at low flow rates. The heat transfer performance is about 2 times higher than that of the stable region.