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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

FINNED TUBE HEAT EXCHANGER FOULING BY PARTICLES

Get access (open in a dialog) DOI: 10.1615/IHTC9.1160
pages 115-120

Résumé

Fouling by particulate solids of an extended surface heat exchanger has been studied. The fouling process was made up of two parts; an initial or delay period before rapid fouling became apparent. The effects on friction factor, pressure drop, fan power, heat transfer coefficient, Colburn j factor and fouling resistance have been experimentally determined. Fouling rate appears to be directly proportional to particulate bulk concentration. Higher velocities (8 m/s) and small particles (5 µm) seem to enhance fouling. The heat flux direction under the conditions of the experiments does not seem to affect the degree of fouling.