• Anshu Patel
• Dr. Santosh Sanodiya

Heat exchanger is a device which is used for exchange of heat from one fuid to another fluid. There is so many methods to exchange heat in fluid i.e direct contact and indirect contact. In direct contact hot fluid directly mix up with cold fluid while in indirect contact fluid will be separate by solid wall/pipe which prevent to mixing. In this research work we use concentric tube in which concentric pipe, one inside and another outside which prevent to mixing of fluid. Basically as increasing surface area rate of heat transfer increase but it is not possible to increase surface area in small and medium industry. As we see that problem, we used double concentric pipe to increase rate of heat transfer fastly. Fins are attached with inner pipe to enhance rate of heat transfer, performance and reduce surface area. In this work the performance of heat exchanger which setup with fin and without fin are compared on the basis of LMTD and heat transfer coefficient with the help of CFD. It is impossible to calculate all this parameter by paper pen so with the help of ANSYS FLUENT 2021R1 easily analysis this research work. Finally we work on heat transfer rate of heat exchanger to increase after attached fins.

Heat Exchanger, CFD, Ansys Fluent, Lmtd, Fins, Friction Factor, Heat Trnsfer Rate.

"Design of Helical Baffle and Thermal Analysis of Shell and Tube Heat Exchanger", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.8, Issue 10, page no.e564-e570, October-2021, Available :http://www.jetir.org/papers/JETIR2110486.pdf

"Design of Helical Baffle and Thermal Analysis of Shell and Tube Heat Exchanger", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.8, Issue 10, page no. ppe564-e570, October-2021, Available at : http://www.jetir.org/papers/JETIR2110486.pdf