Heat transfer is a very common phenomenon of applied physics. It takes place due to the difference in temperature difference between two objects. It has a very prominent role in industries based on thermal engineering. Although many equipment performs this action such as Heat Exchangers, Evaporators, and cooling towers. The effectiveness of a Heat exchanger is a very important factor where such types of operations are being used. Fouling factor is considered while analyzing a heat exchanger due to the deposition of dirt, soot, and dust particles in the tubes of a shell and tube heat exchanger. It lowers the effectiveness of a heat exchanger. The two methods preferred to analyze the performance of a heat exchanger are (i) LMTD and (ii) NTU. The present paper throws light on the various parameters used in the study and analysis of a heat exchanger and how these parameters are interrelated with each other. It also contains some points obtained by comparing the overall heat transfer coefficient to reduce the fouling factor which will be proved beneficial for designing heat exchangers for industrial as well as research purposes in future. For study in the present paper, the modelling is done on SOLIDWORKS and the mesh generation and analysis of the model is completed in ANSYS workbench. This study can be proved useful in designing of heat exchangers for both analytical and industrial purposes by considering the various parameters of heat exchanger design. It can also be proved helpful enhance the effectiveness of heat exchanger by using the given techniques provided to minimize the fouling factor.