Design Optimization of Residential Air Conditioner for Quality Enhancement and Failure Reduction

Abstract

LG Electronics India Pvt. Ltd. has provided a great platform to gain some extremely valuable experiences, knowledge and skills that too in a very helpful, caring and professional environment. The project is titled as “Design optimization of residential air conditioner for quality enhancement and failure reduction”. At the QA (RAC,FQM) LGEIL, the work mainly consisted of concept development and its feasibility for various other aspects, plus testing of the different components of the product. The new development modelled along-with some modifications in existing machine. The main focus is how to reduce field failure rate by applying improvements in design so as to reduce field failures. It also consisted of study of various electronic, electrical and mechanical components being used in white goods and exploring new possibilities for improvement in quality or reduction in cost. Major components of air conditioner along with their functioning and their build inside out is analyzed to determine about the circuit behaviour and mechanism of different parts and the complete functioning of split air conditioner. The objective of the project is to identify the issues and defects found from the customer end and based on that improvement in design and specification is suggested and validated in various parts of residential air conditioner .In this project, not only electrical and electronic components but also the mechanical components of air conditioners are dealt. The reasons and causes of field failure of various components of air conditioners along with some product liability cases are analyzed and the different AC components that have failed in field and are brought up for the purpose of analysis are tested with proper structural procedures to find common errors and troubleshot accordingly . These field failures are analyzed and discussed among different respective departments like R & D and Quality and actions taken accordingly to improve the quality and reducing the cost to company.