Liquid Cooling of High-Power-Density Electric Machines: A Comparative Analysis of Coolant Systems and Types

Key Points

• The aim is to evaluate various coolant systems for high-power-density electric machines in terms of their cooling efficiency.
• Comparison of different coolant system designs used by leading manufacturers
• Analysis of radial- and axial-flux electric machines
• Assessment of coolant type using cfD modeling
• Identified variations in heat removal efficiency among different coolant types
• Demonstrated the impact of cooling system design on electric machine performance
• Provided insights for manufacturers to optimize cooling solutions