Abstract
Heat exchangers are devices that transfer heat between two or more fluids at different temperatures. In industrial production, the main function of the heat exchanger is to transfer heat from the higher-temperature fluid to the lower-temperature fluid, so that the temperature of the fluid reaches the specified target in the process flow and further meet the process requirements. This paper makes numeral simulation of the flow and heat transfer for the heat exchanger during operation, compares the heat transfer performance of the model with or without the plug-in. Besides, through the simulation of single tube model, it analyses the influence of the wind speed on the surface heat transfer coefficient and pressure of the plug-in tube and non-plug-in tube, compares their difference in the heat transfer performance, and states the key parameters in the heat exchanger design. In this paper, the computational fluid dynamics (CFD) software, FLUENT, was used to make simulation analysis of the heat exchanger, to discuss the temperature distribution of the heat exchanger, and analyse the impact of various environmental loads on the heat exchanger. This new simulation method can better improve the accuracy of the analysis, playing a certain guiding role in the future parameter design.
