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Optimization-Related Studies on the Operational Parameters of Friction Stir Welding: An Overview Read chapter Read first chapter

2020 | OriginalPaper | Chapter

10. Natural Convection Heat Transfer from Circular Finned Helical Coil Heat Exchanger in Air

Authors : Rajesh Kumar, Prakash Chandra, Gaurav Raj

Published in: Trends in Manufacturing Processes

Publisher: Springer Singapore

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Abstract

An experimental study has been conducted for natural convection heat transfer over the outer surface of circular finned and unfinned helical coil heat exchanger. Hot water flowing in the range of 1–3 l/min has been taken as working fluid and is cooled by ambient air at 32.5 ± 0.1 °C. The volume flow rate of hot water covers the Reynolds number from 4230 to 12,720 and Prandtl number around 3.7. The temperature of hot water at the inlet of test section is maintained at 50 ± 0.1 °C. The heat transfer rate of hot water has been investigated. Better outside heat transfer coefficient has been found for circular finned helical coil heat exchanger than unfinned one. It is also observed that the temperature drop decreases with increase in hot water flowing through test section.

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Metadata
Title
Natural Convection Heat Transfer from Circular Finned Helical Coil Heat Exchanger in Air
Authors
Rajesh Kumar
Prakash Chandra
Gaurav Raj
Copyright Year
2020
Publisher
Springer Singapore
Book
Trends in Manufacturing Processes

Print ISBN: 978-981-329-098-3

Electronic ISBN: 978-981-329-099-0

Copyright Year: 2020

DOI
https://doi.org/10.1007/978-981-32-9099-0_10

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