INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING Vol.2 Issue.1, January 2014. Pgs: 11-26 G.V.Srinivasa Rao, Dr. C.J.Rao, Dr.N.HariBabu 11 ISSN (ONLINE): 2321-3051 INTERNATIONAL JOURNAL OF RESEARCH IN AERONAUTICAL AND MECHANICAL ENGINEERING HEAT TRANSFER ANALYSIS ON SHELL AND TUBE HEAT EXCHANGERS G.V.Srinivasa Rao 1 , Dr. C.J.Rao 2 , Dr.N.HariBabu 3 1. M.E (Thermal Engg.) student, Aditya Institute of Technology and Management, Tekkali. 2.& 3. Professor, Department of Mechanical Engineering, Aditya Institute of Technology and Management, Tekkali, Srikakulam Dist.,-532201. Email: dr.nhbabu@gmail.com Abstract In the present study inlet temperature of shell and tube side are taken as input parameters with a given bundle arrangement of square pitch. The thermal analysis is done firstly taking water inside the tube and steam on shell side. The design of shell and tube exchanger using Kern method for water and steam combination is validated by well-known Dittus-Boelter equation of turbulent flow inside tube. The analysis is extended using the above Kern method with different fluid combinations such as sulphur-dioxide on the tube side steam on shell side and carbon-dioxide side on tube side and steam on shell side, Parameters such as heat transfer coefficient, friction coefficient, length, area and pressure drop are determined. “C” Program is written to evaluate the above parameters. Graphs are drawn to depict the behavior for different fluid combinations. The results are tabulated. Keywords: Shell and tube Heat Exchanger; Dittus-Boelter equation; Kern Method. 1. INTRODUCTION 1.1 Heat Exchanger: Heat exchanger is equipment which transfers energy from a hot fluid to cold Fluid. While the fluid is passing through the heat exchanger, the temperature of Fluid changes along the length of heat exchanger. The present study focuses mainly on design of heat exchanger known to be shell and tube heat exchanger. A shell and tube heat exchanger is a class of heat exchanger designs. It is most common type of heat exchanger in oil refineries and other large chemical processes and is suited for higher pressure applications. This type of heat exchanger consists of a shell (a large pressure vessel) with a bundle of tubes inside it. One fluid run-through the tubes and another fluid flows over the tubes (through the shell) to transfer heat between the two fluids. Heat exchangers are devices to recover heat between two process streams. The use of heat exchangers is extensive in power plants, refrigeration and air-conditioning systems, Space Chemical, Nuclear, Petrochemical, and Cryogenic industries. Heat exchangers appear in variety of shapes and sizes It can be as huge as a power plant condenser transferring hundreds of Megawatts of heat or as tiny as an electronic chip cooler which transfers only a few Watts of thermal energy.