¹*Assistant Professor, Department of automobile Engineering, MIT Campus Anna University, Chennai India

²M.E. Department of Automobile Engineering, MIT Campus, Anna Univeersity, Chennai India

³Research Scholar, Department of Automobile Engineering, MIT Campus, Anna Univeersity, Chennai India

This project is to improve the surge margin of the compressor used in Exhaust gas turbochargers, which aims to design a system to have optimized size of fixed guide vane. The main objective of this project is to reduce the Turbo lag by improving the surge margin using Inlet fixed vanes without changing the existing system and structure of the compressor.  After analyzing the need to improve the surge margin, functional analysis of the existing product, theoretical engineering calculation, through literature review, conceptualization, optimization and verification, of a new Inlet fixed guide vane for the said compressor was designed and developed. The project has proposed an Inlet fixed guide vane for the said compressor specification through concept generation, concept optimization and gas stand validation. The parameters affecting the air flow velocity in the suction side was analyzed and optimized for maximum preswirl. The proposed concept has been assembled with standard components and bought out as a physical prototype model and the fluid body was simulated through Ansys CFX simulation and the actual testing results were compared with the simulated results.