Numerical Analysis on Enhanced Heat Transfer of the Segmental Baffle in the Shell Side of the Heat Exchanger

In order to analyze the enhanced heat transfer mechanism of segmental baffle in the shell side of the heat exchanger,segmental baffles were added to optimize the design of the original model of shell-and-tube heat exchanger.The three-dimension models of the segmental baffle heat exchangers were set up using FLUENT software,and distribution maps of temperature field and flow field,relevant datas including the capacity of heat transmission and the total heat transfer coefficient in different conditions were gotten.Comparing the numerical simulation results with the original model data,it is shown that the enhanced heat exchanger effect of segmental baffles in the shell side of the heat exchanger is obvious.So the structure optimization of heat exchanger is necessary and rational.