Experimental analysis of heat exchanger using perforated conical rings, twisted tape inserts and CuO/H2O nanofluids

被引：13

作者：

Kumar, Anil ^{[1
]}

Ali, Masood Ashraf ^{[2
]}

Maithani, Rajesh ^{[1
]}

Gupta, Naveen Kumar ^{[3
]}

Sharma, Sachin ^{[1
]}

Kumar, Sunil ^{[4
]}

Sharma, Lohit ^{[5
]}

Thakur, Robin ^{[5
]}

Alam, Tabish ^{[6
]}

Dobrota, Dan ^{[7
]}

Eldin, Sayed M. ^{[8
]}

机构：

[1] UPES, Mech Engn Dept, Dehra Dun 248007, Uttarakhand, India

[2] Prince Sattam Bin Abdulaziz Univ, Coll Engn, Dept Ind Engn, Al Kharj 11942, Saudi Arabia

[3] GLA Univ, Inst Engn & Technol, Mathura 281406, India

[4] Shoolini Univ, Yogananda Sch Artificial Intelligence Comp & Data, Solan 173229, India

[5] Shoolini Univ, Sch Core Engn, Solan, India

[6] CSIR Cent Bldg Res Inst, Roorkee 247667, India

[7] Lucian Blaga Univ Sibiu, Fac Engn, Dept Ind Engn & Management, Sibiu 550024, Romania

[8] Future Univ Egypt, Fac Engn, Ctr Res, New Cairo 11835, Egypt

来源：

CASE STUDIES IN THERMAL ENGINEERING | 2023年 / 49卷

关键词：

Nanofluid; Heat exchanger; Nusselt number; Twisted tape; Thermohydraulic performance; TRANSFER ENHANCEMENT; FRICTION FACTOR; TUBE; FLOW; PERFORMANCE; CONVECTION; SINGLE;

D O I：

10.1016/j.csite.2023.103255

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This research paper presents an experimental analysis on a heat exchanger tube using a newly designed perforated conical ring combined with twisted tape as inserts. The investigation analyzes various geometric and flow parameters in the experimental setup, including a wide range of Reynolds numbers, varying from 6000 to 30000, nanoparticle volume concentration (& phi;np) of 0.251.0%, the ratio of inlet flow dia to inner print dia of the ring (DIR /DBR) of 1.33-2.33, ring pitch ratio (RP/ DED) of 1.41-2.51, twist ratio (TL/ WT) of 3.33-4.38, with fixed values for other parameters: relative ring height ((DED/ WR) of 2.33 and nanoparticle diameter (dnp) of 30 nm. The optimal result of the thermal-hydraulic performance parameter (& eta;TT) is 1.45 at DIR/DBR = 1.83, TL/ WT = 3.50 and RP/ DED = 1.76. For the CuO/H2O nanofluids flow heat exchanger tube with perforated conical rings, empirical correlations were developed for the Nusselt number and the friction factor. These correlations were established with a range of 9.0% and 8.0%, respectively.

引用

页数：13

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