Experimental heat transfer and flow characteristics in a spiral grooved tube with overlapped large/small twin twisted tapes

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• 作者：Yuxiang Hong^a ; ^b ; Juan Du^a ; ^{lsucejuand@126.com} ; Shuangfeng Wang^b
• 关键词：Heat transfer enhancement ; Friction factor ; Overall thermal performance ; Spiral grooved tube ; Twisted tape ; Swirl flow
• 刊名：International Journal of Heat and Mass Transfer
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：106
• 期：Complete
• 页码：1178-1190
• 全文大小：3243 K
• 卷排序：106

文摘

Nu, f and PEC for SGT fitted with TOTT-CL/S are studied. Varying overlapped twisted ratio is investigated. Heat transfer enhancement mechanisms are discussed. Empirical correlations for Nu and f are developed.