Influence of conical strip inserts in heat transfer enhancement under transition flow

被引：14

作者：

Arulprakasajothi, M. ^{[1
]}

Chandrasekhar, U. ^{[2
]}

Elangovan, K. ^{[3
]}

Yuvarajan, D. ^{[1
]}

机构：

[1] Vel Tech Rangarajan Dr Sagunthala R&D Inst Sci &, Dept Mech Engn, Chennai, Tamil Nadu, India

[2] Vel Tech Rangarajan Dr Sagunthala R&D Inst Sci &, Dept Aeronaut Engn, Chennai, Tamil Nadu, India

[3] Cambridge Inst Technol, Dept Mech Engn, Bangalore, Karnataka, India

来源：

INTERNATIONAL JOURNAL OF AMBIENT ENERGY | 2020年 / 41卷 / 05期

关键词：

Conical strip; transition flow; twist ratio; Nusselt number; friction factor; swirl flow; FRICTION FACTOR CHARACTERISTICS; CIRCULAR TUBE; PRESSURE-DROP; LAMINAR-FLOW; PERFORMANCE; OXIDE; CUT;

D O I：

10.1080/01430750.2018.1472651

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The performance of the concentric tube heat exchangers can be increased due to the swirl flow generation caused by the inserts which exchange heat in an effective manner. Many researchers have studied the thermal behaviour of different types of inserts, such as twisted tape and wire coil, with different geometries. This work dealt with the heat transfer and friction factor behaviour of newly fabricated staggered and non-staggered conical strip insets. The conical strip insert produces much swirl flow corresponding to the twist ratios (Y = 2, 3 and 5). The experimental results are in good agreement with the correlations developed for Nusselt number and friction factor with the help of regression analysis.

引用

页码：511 / 516

页数：6

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