The shell and tube heat exchanger have extensive use in different process industries. Vibration becomes a problem in heat exchangers when the intensity increases to the point that it causes some part of the exchanger to fail mechanically, upsets the process conditions, or creates a condition that endangers those who work in that area. In this paper, the vibration analysis for the shell and tube heat exchanger (STHE) is carried out using CHEMCAD for two major types of baffles used in the exchanger. Such kind of analysis for a shell and tube heat exchanger has not been done before. The changes in the cross-flow velocity, critical velocity, natural frequency, vortex shedding frequency and turbulent buffeting frequency throughout the length of tube of the heat exchanger with segmental baffles and no tubes in window baffles are studied. Value of all these parameters is found to be more in case of no tubes in window baffles than the single segmental baffles.
