UGC Approved Journal no 63975(19)

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Volume 8 Issue 3
March-2021
eISSN: 2349-5162

UGC and ISSN approved 7.95 impact factor UGC Approved Journal no 63975

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Published Paper ID:
JETIR2103233


Registration ID:
306975

Page Number

1881-1887

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Title

ANALYSIS OF CONCENTRIC TUBE HEAT EXCHANGER BY USING DIFFERENT INSERTS AND DIFFERENT NANO FLUIDS

Abstract

The vortex generators induce stream wise longitudinal vortices. These vortices disrupt the growth of the thermal boundary layer and serves to bring about heat transfer enhancement between the fluid and the fin surfaces. The geometrical configuration considered in this study is representative of a channel with winglets spread over three rows each row 13 a pair of winglets. In this study, three dimensional turbulent flow of different nanofluids flow inside a rectangular duct with the existence of vortex generator winglets at different angle are (10º, 20º and 30º) is numerically investigated. The effects of type of the nano particles, and Reynolds number on the heat transfer coefficient and pressure drop of nano fluids are examined. Reynolds numbers (10000, 20000, 30000, 40000 and 50000). A constant surface temperature is assumed to be the thermal condition for the upper and lower heated walls. In the present work, three nanofluids are examined which are Al2O3, Cu O2 and SiO2 suspended in the base fluid of water with nanoparticles concentration ranged = 4% and the nanoparticles diameter, DP is (30 nm). The validity of the code is tested by comparing the results for a three-dimensional experimental the published results with numerical results. The results are in good agreement with the published results. It is observed from the results that the heat transfer increases with the increase in the angle of attack and Reynolds number. The result reporting showed that the case of channel with winglet at angle 30˚ presented highest heat transfer rate. Where that, the case of channel with winglet at angle 20˚ presented, the Nu values are lower than the winglet with angle 30˚. Also, the case of channel with winglet at angle 10˚ and smooth channel presented, the Nu values are apparently lower than the winglet with angle 30˚

Key Words

CFD, Winglets, nano fluids, Nusselt number, Reynolds numbers.

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"ANALYSIS OF CONCENTRIC TUBE HEAT EXCHANGER BY USING DIFFERENT INSERTS AND DIFFERENT NANO FLUIDS ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 3, page no.1881-1887, March-2021, Available :http://www.jetir.org/papers/JETIR2103233.pdf

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2349-5162 | Impact Factor 7.95 Calculate by Google Scholar

An International Scholarly Open Access Journal, Peer-Reviewed, Refereed Journal Impact Factor 7.95 Calculate by Google Scholar and Semantic Scholar | AI-Powered Research Tool, Multidisciplinary, Monthly, Multilanguage Journal Indexing in All Major Database & Metadata, Citation Generator

Cite This Article

"ANALYSIS OF CONCENTRIC TUBE HEAT EXCHANGER BY USING DIFFERENT INSERTS AND DIFFERENT NANO FLUIDS ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 3, page no. pp1881-1887, March-2021, Available at : http://www.jetir.org/papers/JETIR2103233.pdf

Publication Details

Published Paper ID: JETIR2103233
Registration ID: 306975
Published In: Volume 8 | Issue 3 | Year March-2021
DOI (Digital Object Identifier):
Page No: 1881-1887
Country: -, -, - .
Area: Engineering
ISSN Number: 2349-5162
Publisher: IJ Publication


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