A COMPARATIVE ANALYSIS OF THE FLOW PATTERN USING FLUE GASES AND WATER INSIDE ECONOMIZER

This project is an effort to analyze the velocity distribution inside the economizer tube by changing the working fluids. Flue gases and water were considered as the working fluid in our study. The velocity plays a key role in heat transfer by convection method. This paper presents the computational analysis of economizer normally employed in thermal power plant sectors. The reason behind the study of velocity distribution is, the flue gases exhibits greater velocity at lower bend areas when compared with upper bend regions. This leads to erosion in upper bends while employing flue gas as the working fluid. The computational model was resolved using conventional CFD techniques. The three dimensional economizer coils was designed using CATIA V5 software and the temperature, pressure and the inlet velocity of the fluid flow were given as the boundary conditions for our analysis.