International Journal of Current Engineering and Technology E-ISSN 2277 – 4106, P-ISSN 2347 – 5161 ©2017 INPRESSCO ® , All Rights Reserved Available at http://inpressco.com/category/ijcet Review Article 358| MITCOE, & DIAT, Pune, AMET-2017, IJCET INPRESSO Special Issue-7 (March 2017) Effect of Different types of Baffles on Heat Transfer & Pressure Drop of Shell and Tube Heat Exchanger: A review Swapnil S.Kamthe * and Shivprakash B.Barve † Department of Mechanical Engineering, MAEERǯs MITCOE, Pune411038, Maharashtra, India Accepted 12 March 2017, Available online 16 March 2017, Special Issue-7 (March 2017) Abstract Diverse sorts of heat exchangers are broadly utilized as a part of many design applications, for example, petroleum refining, refrigeration, cooling, nourishment industry, and so forth. Among various sorts of heat exchangers, manufacturing of shell and-tube heat exchanger is easy and multi-reason application conceivable outcomes for vaporous and fluid media in an extensive temperature and pressure territory. This paper manages a survey of exploratory research work that plans to look at the impacts of various baffles sorts on pressure loss and heat transfer in heat exchanger. Baffle is one of the basic part considered in design of STHE. Confuses, having an essential piece of STHE, offer help to keep of support tubes in bundle and as shell side it also helps to maintain the speed of stream. Different sorts of baffles are utilized as a part of STHEs. For example segmental, flower, ring, trefoil hole, plate and doughnut sort and helical. Be that as it may, conventional HX with segmental baffle indicate low heat exchange proficiency and extensive pressure loss. From the present review it can be inferred that helical baffles fill in as an all the more encouraging innovation due to having less loss of pressure in shell, better heat exchange execution, less fouling and less liquid incited vibration. Keywords: Baffles, Shell and Tube HX, Pressure drop, heat transfer coefficient, fouling, Fold baffles, Baffle shape. 1. Introduction 1 Heat exchanger is an imperative mechanical assembly in general fields, for example, petroleum refining, refrigeration, cooling, nourishment industry, and so forth. Among the distinctive sorts of heat exchangers, shell-and tube heat exchanger contain many points of interest, for example, solid structure, develop procedures and wide pertinence, which make it generally used in different industries. The main considerations influencing the efficiency of STHE are turbulence, pressure drop, heat exchange coefficient, fouling, and proportion or amount of stream rates on tube to shell side, length of heat exchanger and baffle types. By expanding turbulence power level, resistance to stream also expanded, which upgrades the heat exchange adequately. Heat exchange rate can be improved with high pressure loss however it prompts to increase in power consumption, which is its real downside. Thus, estimation of streamlined pressure drop for ideal heat exchange rate and power utilization is utilized. More prominent heat exchange coefficient increases the heat exchange rate. Heat exchange coefficient increased by increasing flow rate at shell and tube side, coil diameter and pitch and also by applying counter-stream design. Fouling ought to be *Corresponding author: Swapnil S.Kamthe low in heat exchanger for good execution. Fouling principally relies on upon liquid structure, tube wall temp and material of pipe. For heat exchanger as length decreases ratio of heat exchange to pressure loss increase. In this way, more turbulence, lower pressure drop, higher heat exchange coefficient and additionally less fouling are a portion of the components required for getting better execution of shell and tube heat exchanger (Yingshuang Wang et al., 2011). The customary segmental baffle (SB-STHX) heat exchanger with have many detriments, for example, drop of pressure is high, low heat exchange efficiency, shell-side stream caused hurtful vibration to tube bundle. At the point when the customary segmental baffle are utilized as a part of STHX, for counter balancing the higher pressure drop higher pumping power is required under a similar heat stack. Consequently, another sort of STHX utilizing diverse sorts of baffle may accomplish higher heat exchange proficiency and lower pressure drop. Two reliant elements that impacting on capital and working expenses of the heat trade frameworks are pressure drop and heat exchange. Keeping in mind the end goal to enhance the execution, higher heat exchange productivity and moderately bring down pressure drop heat exchangers with various sorts of baffle are produced, for example, rod baffle and helical baffle