Abstract
AbstractHeat exchangers are considered to be one of the most widely used apparatus in the process of manufacturing. One type of the heat exchangers known as Shell and Tube heat exchangers (STHX) which are the utilized in oil refineries and chemical industries due to wide range of applications. The main aim of this work is to investigate the thermo-hydraulic behavior of shell and tube heat exchangers with single segmental baffle configuration. Single segmental baffles have been inserted in shell and tube heat exchanger to augment heat transfer performances and the exchanger performance parameters have been compared with different single segmental baffle cuts. Three different baffle configurations have been considered at 22.5, 34.5, and 41.5% of baffle cuts. Parameters like coefficient of heat transfer, effectiveness, and pressure drop are considered for the measurement of performance and efficiency of heat exchangers. The design of exchanger has been carried out by using Bell-Delaware method to satisfy TEMA standards. The 3D modeling has been done for different configurations with CATIA software. The performance analysis has been carried out through computational fluid dynamics by using ANSYS-FLUENT. The overall heat transfer coefficient increases from 60 to 85% with decrease in baffle cut from 41.5 to 22.5%. It has been observed that these single segmental baffles furnish better rate of heat transfer with minimum baffle percentage.KeywordsHeat exchangerBafflesComputational Fluid Dynamics (CFD)Heat transfer coefficientpressure drop
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