Numerical prediction on mist/steam cooling in a square ribbed channel at real gas turbine operational conditions

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• 作者：Tieyu Gao^a ; ^{sunmoon@mail.xjtu.edu.cn} ; Junxiong Zeng^a ; Jun Li^a ; Jianying Gong^b
• 关键词：Mist/steam cooling ; Internal ribbed channel ; Heat transfer enhancement ; Elevated operational conditions
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：May 2017
• 年：2017
• 卷：108
• 期：part_PA
• 页码：1089-1102
• 全文大小：3717 K
• 卷排序：108

文摘

Secondary flow distribution, gas-droplet interaction and its effect on heat transfer are analyzed. Influences of Reynolds number, mist mass ratio and droplet size on mist/steam cooling are studied. Heat transfer enhancement of mist/steam at both elevated and laboratory conditions is compared. It is still attractive for applying mist/steam cooling to gas turbine internal ribbed channel at elevated conditions.