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2016 (Vol. 13, Issue: 8)
Research Article

Heat Transfer Enhancement in Tube using Modified Twisted Tape Inserts

Asmaa Ali Hussein
Foundation of Technical Education, Baghdad, Iraq

DOI: 10.19026/rjaset.13.3047
Submitted Accepted Published
October 15, 2015 November 15, 2015 October 15, 2016

  How to Cite this Article:

Asmaa Ali Hussein, 2016. Heat Transfer Enhancement in Tube using Modified Twisted Tape Inserts.  Research Journal of Applied Sciences, Engineering and Technology, 13(8): 617-625.

DOI: 10.19026/rjaset.13.3047

URL: http://www.maxwellsci.com/jp/mspabstract.php?jid=RJASET&doi=rjaset.13.3047


The aim of the present experimental investigations is to increase of turbulent flow heat transfer in a horizontal circular tube using six types of twisted tapes in which a total length relative to the diameter ratio is 24 and Reynolds number values runs from 4500 to 23500. Take twisted tapes amendment: (normal, regularly spaced, triangular-cut, rectangular-cut, semicircular-cut and drilled) twisted tape. In this study, the development of mutual relations between the Nusselt number, friction factor and enhance the efficiency of each type of inclusion twisted stripe have been taken into account. The results showed that the heat transfer process in tube with twisted ribbon provider drilled more efficient than other forms of twisted tape because the strong spiral flow along the tube length leads to more disturbance of the entire flow field.

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    Competing interests

The authors have no competing interests.
    Open Access Policy

This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.


© The Author(s) 2016

ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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