Heat transfer during reflux condensation of R134a inside a micro-fin tube with different tube inclinations

详细信息    查看全文

• 作者：S. Yildiz^a ; ^{syildiz@yildiz.edu.tr} ; G. Duymaz^b ; F. Ziegler^c ; H. Auracher^c
• 关键词：Reflux condensation ; R134a ; Heat transfer ; Micro-fin tube ; Inclined tube
• 刊名：International Journal of Refrigeration
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：74
• 期：Complete
• 页码：425-434
• 全文大小：1251 K
• 卷排序：74

文摘

Heat transfer during reflux condensation inside an inclined micro-fin tube is studied. The highest heat transfer rate is obtained at 30° from the horizontal. Heat transfer at 30° inclination is 2.45 times better compared to vertical orientation. Heat transfer in a micro-fin tube is 120% higher than in a plain tube at 30° from the horizontal. Heat transfer is 34% higher in a micro-fin tube than in a rectangular channel at 30° from the horizontal.