IJARSCT ISSN (Online) 2581-9429 International Journal of Advanced Research in Science, Communication and Technology (IJARSCT) International Open-Access, Double-Blind, Peer-Reviewed, Refereed, Multidisciplinary Online Journal Volume 3, Issue 2, September 2023 Copyright to IJARSCT 140 www.ijarsct.co.in Impact Factor: 7.301 Design and Optimization of Radiator for Liquid Cooling using Micro Channels Manoj Dongare 1 , Swapnil Bhoir 2 , Dr.Munna Verma 3 Research Scholar, Mechanical Engineering Department, Bhagwant University, Ajmer, India 1 Research Scholar, Mechanical Engineering Department, Bhagwant University, Ajmer, India 2 Professor, Mechanical Engineering Department, Bhagwant University, Ajmer, India 3 Abstract: The need to use micro channel in such radiator arise as need to increase the heat transfer rate from the radiator to better cool down the working fluid. The current radiator are not efficient in this process and thus hamper the performance of CPU, solution employed currently include increase the length of radiators and to accommodate multiple fans over it. The method we employed to tackle the issue was to introduce micro channels in the tube of the radiator. Use of micro channels increases the surface area of the passage through which the fluid passes, the increase in surface area leads to increased heat transfer rate which causes more heat loss through the system. Thus, increasing the efficiency of the radiator. Keywords: Micro channel, radiator, heat transfer rate, efficiency, surface area, temperature drop, pressure drop I. INTRODUCTION Heat Exchangers are devices designed to transfer heat between two or more fluids i.e., liquids,Vapours, or gases of different temperatures. Depending on the type of heat exchanger employed, the heat transferring process can be gas-to- gas, liquid-to-gas, or liquid-to liquid and occur through a solid separator, which prevents mixing of the fluids, or direct fluid contact. Regardless of the type and design, all heat exchangers operate under the same fundamental principles namely the Zeroth, First, and Second Laws of Thermodynamics which describe and dictate the transference or exchange" of heat from one fluid to another [3]. The flow configuration, also referred to as the flow arrangement, of a heat exchanger refers to the direction of movement of the fluids within the heat exchanger in relation to each other. There are four principal flow configurations employed by heat exchangers [4]. Figure 1: Heat Exchanger Flow Configurations Micro Channel Heat Exchanger Micro channel technology is being increasingly adopted by manufacturers in heating, air conditioning and refrigeration products, both for their enhanced energy efficiency, cost and reduced refrigerant charge. The goal with micro channel