Experimental Investigation of Heat transfer and Friction Factor Characteristics with Triangular-cut Twisted Tape (TCTT) Inserts

被引：1

作者：

Sivakumar, K. ^{[1
]}

Rajan, K. ^{[2
]}

机构：

[1] Bharath Inst Higher Educ & Res, Dept Mech Engn, Chennai, Tamil Nadu, India

[2] Dr MGR Educ & Res Inst, Dept Mech Engn, Chennai, Tamil Nadu, India

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES | 2020年 / 90卷 / 02期

关键词：

Triangular-cut twisted; Heat transfer rate; Plain twisted; Twist ratio; Friction factor; CIRCULAR TUBE; PRESSURE-DROP; LAMINAR-FLOW; TURBULENT-FLOW;

D O I：

10.1007/s40010-018-0573-8

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

An experiment was conducted to investigate the heat transfer characteristics and friction factor characteristics of a concentric tube fitted with triangular-cut twisted tape (TCTT) insert with a twist ratio Y of 5.4 and depth of triangular cut of 1.2 cm, which were studied for laminar flow. This investigation also is used to find the heat transfer coefficient, Nusselt number and Reynolds number. The heat transfer enhancement was caused with the flow of fluid between the plain twisted tapes and TCTT. The experimental value of plain tube and triangular-cut twisted tube obtained from the experimental work and these two statistical data were compared with the results. The results show that the enhancement of heat transfer rate induced with plain and TCTT inserts increases with the increase in Reynolds number. The Reynolds numbers were varied in the range of 5710-18,366. The Reynolds number in the tube with triangular- cut twisted tape insert were enhanced by 1.1-1.3 times compared with smooth twisted tape inserts. The configuration of TCTT insert offered higher heat transfer rate and friction factor than that of the plain twisted inserts.

引用

页码：353 / 357

页数：5

共 31 条

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