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THE EFFECTS OF SUPERIMPOSED FORCED AND FREE CONVECTION ON HEAT TRANSFER AND PRESSURE DROP IN A HORIZONTAL RECTANGULAR DUCT

Journal Article · · Chem. Eng. Progr.
OSTI ID:4145284

Average and local heat transfer coefficients and flow friction data are reported for a rectangular horizontal duct 2.6- by 1.72-in. cross section and 13.5 ft. long. Variables include a range of Grashof numbers from 5 x 10/sup 4/ to 5 x 10/sup 5/ and Reynolds numbers from 1,000 to 10,000, all based on equivalent duct diameter. Axial wall temperature distributions, duct position, and inlet shape were varied. Average heat transfer coefficients and duct friction factors were correlated for both linear and nonlinear axial wall temperature distributions using a free-convection correction factor. (auth)

Research Organization:
General Electric Co., Schenectady, N.Y.
NSA Number:
NSA-14-012689
OSTI ID:
4145284
Journal Information:
Chem. Eng. Progr., Journal Name: Chem. Eng. Progr. Vol. Vol: 55, Symposium Ser. No. 29
Country of Publication:
Country unknown/Code not available
Language:
English