DESIGN DEVELOPMENT AND ANALYSIS OF A HEATSINK OF A 7 kW SPLIT AIR CONDITIONER OUTDOOR UNIT

Abstract

A heat sink development project has been mentioned in this study. The main aim was to design, develop and test a new heatsink for the outdoor unit of split air conditioner which is being upgraded with respect to cooling capacity from 5 kW to 7 kW. The increase in cooling capacity enhances the power requirement of the system which in turn increases the power across IC as well and increases its temperature too which needs to be taken care of. So, in order to take care of this high temperature across IC a heatsink design and development project was initiated. The various steps that were taken from start of project to its final completion have been briefed in this study. Starting from studying about heatsink its importance its use to studying various parameters related to heat sink effecting its performance and which parameter contributes how much towards its performance improvement in order to obtain the most optimized heatsink model which would be able to keep the temperature of IC of PCB within certain limit and prevent them from destroying themselves due to high enough temperature is the main goal here. This is achieved by first building a system that would replicate the test results on the base model and work my way up on various different models in order to obtain the most feasible model.