In this paper an analysis of two different types of baffle in a Shell and Tube Heat Exchanger is performed. Shell and tube heat exchanger are popularly used in many industrial applications such as power generation, Refrigeration and Environmental Protection and Chemical Engineering. Baffle is one of the components from the shell side of the STHE. The segmental baffle forces the liquid in a Zigzag flow and improving heat transfer and also increases the pressure drop and Combination of Vane & segmental decreasing the pressure drop, temperature distribution and exergy destruction