ISSN:
0001-1541
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Process Engineering, Biotechnology, Nutrition Technology
Notes:
Heat transfer to a horizontal cylinder from an ordinary fluid containing a volume heat source was studied analytically. The first approach to this problem was to assume that the heat source existed only in the boundary layer surrounding the cylinder. By solving the equations for a vertical flat plate cooling the ambient fluid and applying the results to a horizontal cylinder, one could determine the effect of a volume heat source on the heat transfer coefficient for the cylinder case. The variables studied were volume heat sources from 0 to 300 B.t.u./(sec.)(cu. ft.) and temperature difference across the boundary layer in the range 20° to 100°F.In the laminar-flow region a volume heat source was found to increase the heat transfer coefficient for any given temperature difference across the boundary layer. This increase, due to the decrease in boundary-layer thickness caused by the volume heat source, was moderate, being about 20% for a 1 1/4-in. O.D. cylinder with a heat source strength of 100 B.t.u./(sec.) (cu. ft.) and a temperature difference across the boundary layer of 20°F.
Additional Material:
6 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/aic.690050205
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