Design Optimization and Performance Evaluation of Venturi Duct-Integrated Cooling Systems for Permanent Magnet Synchronous Motors in Electric Two-Wheelers Applications

Abstract

Effective thermal management is very important for making Permanent Magnet Synchronous Motors (PMSMs) more efficient, reliable, and lasting, especially in electric two-wheelers. This study examines the design of a cooling system that uses a Venturi duct to remove heat from a 5 kW PMSM motor more effectively. The Venturi duct was specially designed to increase airflow and improve the removal of heat from the motor housing. The study used Computational Fluid Dynamics (CFD) simulations under normal operating conditions, which included an inlet airflow speed of 3 m/s and an ambient temperature of 30 °C. It looked at how air moves, the temperature of the motor’s surface, and how heat is transferred. The results showed that the Venturi duct creates more even airflow and lowers the motor’s surface temperatures far more than without the duct. The study also shows how the shape of the duct affects cooling performance, proving that adding a Venturi duct is a cost-effective, small, and dependable way to manage heat in PMSMs used in electric two-wheelers. These findings help in creating better ways to control temperature, which in turn improves the motor’s life and performance in future electric vehicles.