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Heat transfer augmentation for the flow of a viscous liquid in circular tubes using twisted tape inserts

DSpace at IIT Bombay

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Title Heat transfer augmentation for the flow of a viscous liquid in circular tubes using twisted tape inserts
 
Creator AGARWAL, SK
RAO, MR
 
Subject laminar-flow
prediction
 
Description Isothermal and nonisothermal friction factors and mean Nusselt numbers for uniform wall temperature (UWT) heating and cooling of Servotherm oil (Pr = 195-375) were experimentally determined for their flow in a circular tube (Re-a = 70-4000) with twisted tape inserts (y = 2.41-4.84). Isothermal friction factors were found to be 3.13-9.71 times the plain tube values. The Nusselt numbers were found to be 2.28-5.35 and 1.21-3.70 limes the plain tube forced convection values based on constant flow rate and constant pumping power, respectively, for the minimum twist ratio tape. Correlations were developed for the prediction of isothermal friction factors and the Nusselt numbers. A correlation representing the effect of heat transfer on Friction Factors is also proposed. Copyright (C) 1996 .
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-08-25T04:55:35Z
2011-12-26T12:56:55Z
2011-12-27T05:46:27Z
2011-08-25T04:55:35Z
2011-12-26T12:56:55Z
2011-12-27T05:46:27Z
1996
 
Type Article
 
Identifier INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 39(17), 3547-3557
0017-9310
http://dx.doi.org/10.1016/0017-9310(96)00039-7
http://dspace.library.iitb.ac.in/xmlui/handle/10054/10901
http://hdl.handle.net/10054/10901
 
Language en