International Journal of Advanced Engineering Research and Science (IJAERS) [Vol-4, Issue-2, Feb- 2017] https://dx.doi.org/10.22161/ijaers.4.2.35 ISSN: 2349-6495(P) | 2456-1908(O) www.ijaers.com Page | 175 Computational Analysis of Heat Transfer through Fins with Different Types of Notches K. Sathishkumar 1 , K. Vignesh 2 , N. Ugesh 3 , P. B. Sanjeevaprasath 4 , S. Balamurugan 1* 1,2,3,4 Student, Department of Mechanical Engineering, United Institute of Technology, Coimbatore, India 1* Assistant Professor, Department of Mechanical Engineering, United Institute of Technology, Coimbatore, India Abstract—The Engine is one of the important component in an automobile which is subjected to high temperature and thermal stresses. In order to cool the engine the fins are another component which are used to dissipate the heat from the Engine. Fins are generally used to increase the heat transfer rate from the system to the surroundings. By doing computational flow analysis on the engine cooling fins, it is helpful to know about the heat dissipation rate and the Principle implemented in this project is to increase the heat transfer rate, so in this analysis, the fins are modified by putting different types of notches and are of same material. The knowledge of efficiency and effectiveness of the fins are necessary for proper designing of fins. The main objective of our analysis is to determine the flow of heat at various notches available and the analysis is done by using ANSYS – CFD Fluent software. Keywords— CFD, Flow over fins, Notches, Cooling system and analysis. I. INTRODUCTION Heat transfer is a thermal energy which occurs in transits due to temperature difference. Cooling system is one of the important system among all of the systems in automobile. Fins are responsible to carry out the produced heat inside the cylinder , for the heat transfer there are various modes like conduction , convection and radiation are taken place. From these modes conduction is carried out in engine cooling fins. There are two different types of cooling system that are used in the automobiles, they are: 1. Air Cooling 2. Water cooling 1. Air-Cooling : Mostly automobile bikes using direct air cooling (without an intermediate liquid) were built over a long period beginning with the advent of mass produced passenger cars and ending with a small and generally unrecognized technical change. 2. Liquid Cooling: Liquid cooling is also employed in maritime vehicles. For vessels, the seawater itself is mostly used for cooling. In some cases, chemical coolants are also employed (in closed systems) or they are mixed with seawater cooling. By doing the computational Fluid analysis the heat transfer rate of the fins with various types of notches are analyses by using ANSYS-14.5 . II. LITERATURE REVIEW “Deepak Gupta, Wankhade S.R.”, Design and Analysis of Cooling Fins in this paper the author tells about Cooling fins are used to increase the heat transfer rate of specified surface. Engine life and effectiveness can be improved with effective cooling. The main aim of the project is to study and comparing with100 cc Hero Honda Motorcycle fins and analyze the thermal properties by varying geometry, material and thickness. The analysis is done using ANSYS[1]. “Sanjay Kumar Sharma and Vikas Sharma” , Maximizing The Heat Transfer through Fins using CFD as a Tool in this author describes This study presents the results of computational numerical analysis of air flow and heat transfer in a light weight automobile engine, considering three different morphology pin fins. The results indicate that the drop shaped pin fins show improved results on the basis of heat transfer and pressure drop by comparing other fins [2]. “S.Jamala Reddy, Y.Tejeswar ” , Design and Thermal Analysis of Cooling Fins by Varying its Geometry and Material in this paper The main purpose of using these cooling fins is to cool the engine cylinder by air. The main aim of the project is to analyze the thermal properties by varying geometry, material and thickness of cylinder fins. Transient thermal analysis determines temperatures and other thermal quantities that vary over time [3]. “Vivek Kumar, Dr. V. N. Bartaria”, CFD Analysis of an Elliptical Pin Fin Heat Sink using Ansys Fluent v12.1 in the present study carries out numerical physical insight into the flow and heat transfer characteristics. The governing equations are solved by adopting a control volume-based finite- difference method with a power-law scheme on an orthogonal non-uniform staggered grid [4]. “G. Babu, M. Lavakumar” , Heat Transfer Analysis and Optimization of Engine Cylinder Fins of Varying Geometry and Material in this paper the main aim of the project is to analyze the thermal properties by varying geometry, material and thickness of cylinder fins. Parametric models of cylinder with fins have been developed to predict the transient thermal behavior. The models are created by varying the geometry, rectangular, circular and curved shaped fins and