<b>A CFD Study on Plate Heat Exchanger using Nanofluid with Different Corrugated Channels Configurations under Forced Convection Flow</b> Notwithstanding the fact that various empirical experiments have been performed on heat transfer and pressure drop in the corrugated surface as a result of parametric variance of the individual surface pattern. Nonetheless, there are very unusual records of heat transfer properties and pressure rises across corrugated channels with various surface patterns. The purpose of this work is therefore to include a comparative analysis with various surface patterns such that researchers can establish an optimization tool to pick an effective solution. For this research, the thermal and hydraulic properties of the corrugated fluid channels proposed to be semi circular and triangular Plate heat exchangers PHE was studied through computational fluid dynamics CFD simulations utilizing popular CFD software ANSYS CFX 17.0. The goal of this analysis was to numerically model and validate the semi circular corrugated channel with dimensions parameters taken from available literature, and then to model analyze the triangular corrugated channel related to the triangular model. In fact, in order to promote trust in this model, a distinction was made between the expected values and the findings of the literature for exactly the same event. An entire fluid channel is simulated using nanoparticles volume fractions of Al2O3 and Reynolds number ranging from 0 to 6 and 10,000–30,000. The results showed that compared to semi circular model at Re 10000 with volume fraction 6 of Al2O3 in water, the Nusselt number for triangular model increases 6.23 referred to semi circular model. With progression with volume fraction, Nusselt number increases. For triangular channel with Re=10000, at 0 volume fraction Nu=129.16 while at 6 volume fraction Nu=159.35. Corrugated Channel, CFD, Heat Exchanger, Heat Transfer Enhancement and Nusselt number 37-44 Issue-5 Volume-4 Madhuri Singh | Prof. Animesh Singhai