ISSN Online: 2377-424X
ISBN Print: 0-89116-909-1
International Heat Transfer Conference 9
FINNED TUBE HEAT EXCHANGER FOULING BY PARTICLES
Abstrakt
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.