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Transport Phenomena in Thermal Engineering. Volume 2

ISBN:
1-56700-015-0 (Print)

INTENSIFICATION HEAT EXCHANGE WITH VAPORIZATION R-22 INSIDE HORIZONTAL TUBES

Vladimir G. Rifert
Department of Thermal Distillation & Heat-Mass Transfer Intensification, Kiev Polytechnical Institute, Kiev, Ukraine

Y. E. Trokoz
Department of Thermal Distillation & Heat-Mass Transfer Intensification, Kiev Polytechnical Institute, Kiev, Ukraine

V. V. Gorin
Department of Thermal Distillation & Heat-Mass Transfer Intensification, Kiev Polytechnical Institute, Kiev, Ukraine

G. A. Melnichuk
Department of Thermal Distillation & Heat-Mass Transfer Intensification, Kiev Polytechnical Institute, Kiev, Ukraine

Abstract

Heat transfer coefficients and hydraulic loss are determined by R-22 boiling inside the horizontal tubes with both internal longitudinal finning and straight finned insert from aluminium. Obtained data are compared with the results of coolant boiling in tubes with internal spiral finning and tubes with spiral finned insert. Simple way to enhance heat transfer in tube with internal longitudinal finning is tested and proposed.