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Laminar Convective Heat Transfer And Friction Factor Of AL2O3 Nanofluid In Circular Tube Fitted With Twisted Tape Inserts

Sharma, Korada Viswanatha and L. Syam, Sundar (2011) Laminar Convective Heat Transfer And Friction Factor Of AL2O3 Nanofluid In Circular Tube Fitted With Twisted Tape Inserts. International Journal of Automotive and Mechanical Engineering (IJAME), 3 (Jan-Ju). pp. 265-278. ISSN 1985-9325(Print); 2180-1606 (Online)

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Abstract

We experimentally investigated the fully developed laminar convective heat transfer and friction factor characteristics of different volume concentrations of Al2O3 nanofluid in a plain tube and fitted with different twist ratios of twisted tape inserts. Experiments were conducted with water and nanofluid in the range of 700 Re2200, particle volume concentration of 0.5%, and twisted tape twist ratios of 0H / D15. The nanofluid heat transfer coefficient is high compared to water and further heat transfer enhancement is observed with twisted tape inserts. The pressure drop increases slightly with the inserts, but is comparatively negligible. A generalized regression equation is developed based on the experimental data for the estimation of the Nusselt number and friction factor for water and nanofluid in a plain tube and with twisted tape inserts.

Item Type: Article
Uncontrolled Keywords: Forced convection in a tube; Aluminium oxide nanofluid; Twisted tape inserts, heat transfer enhancement, nanofluid friction factor
Subjects: T Technology > TJ Mechanical engineering and machinery
Faculty/Division: Faculty of Mechanical Engineering
Depositing User: Pn. Hazlinda Abd Rahman
Date Deposited: 29 Aug 2011 01:29
Last Modified: 13 Jun 2016 02:06
URI: http://umpir.ump.edu.my/id/eprint/1856
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