Investigating The Heat Transfer in Double Pipe Heat Exchanger Through Variation in Holes on Fins Using CFD Analysis
Keywords:
Exhaust gas, Nanoparticles, Heat transfer, Fins, Turbulence, etc.Abstract
In order to lower the temperature of the exhaust gases and lessen the impact of greenhouse gases, a “double pipe heat exchanger” was used in this research. Three new non-linear fin configurations on the heat exchanger body, a hybrid of two nanofluid types (Ag and Fe3O4), and nanoparticles with a volume concentration of 2.5% each are use in this research. For investigating used the K-epsilon (κ − ε) turbulence modeling to assess the embedded simulation in the commercial program ANSYS-FLUENT. According to the study's findings, increasing the fins' hole sizes reduces the exhaust gases' temperature by an average of 1 kelvin. A decrease of 7.74% in exhaust gas and a decrease of 67% in nano-fluid pressure. Thus, it can be concluded that the amount of fin holes has a more significant impact on enhancing the heat transfer rate compared to the hybrid nanoparticles. The study's findings point to the kind of nanofluid, as well as the characteristics of the fins' number, shape, and arrangement, as elements that effectively lower the temperature of diesel engine exhaust gasses.
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