MODELING OF THE BOILING PROCESS IN CORRUGATED PIPES BY THE FINITE ELEMENT METHOD

Abstract

The article examines the possibility of using corrugated pipes in the evaporator to intensify the heat exchange process. A computer model was constructed using the finite element method in Fluent ANSYS. Performed computer simulation of the boiling process of liquid in a smooth and corrugated pipe and was check it for adequacy. According to the modeling results, was carry out a comparative analysis of quantitative and qualitative indicators for a smooth and corrugated pipe. The temperature value in smooth and corrugated pipes was set. The volume of the vapor phase was determined and the heat transfer coefficients for both pipe types were calculated. The value of the heat transfer coefficient for the corrugated pipe is 3296 W/(m2� K), which is almost 52% more than the value for smooth one. The adequacy of the obtained values was checked by comparing the results with the calculated theoretically. Provided recommendations on the feasibility of using corrugated pipes and the possibility of optimizing their geometric configuration in the future. This study can be used by engineers at the stages of designing heat exchange equipment. The further stage of this study will be the analysis of the effect of corrugation geometry on the efficiency of heat transfer.