skip to main content

Title: Electric Motor Thermal Management for Electric Traction Drives (Presentation)

Thermal constraints place significant limitations on how electric motors ultimately perform. Finite element analysis and computational fluid dynamics modeling approaches are being increasingly utilized in the design and analysis of electric motors. As the models become more sophisticated, it is important to have detailed and accurate knowledge of material thermal properties and convective heat transfer coefficients. In this work, the thermal properties and inter-lamination thermal contact resistances were measured for different stator lamination materials. Also, convective heat transfer coefficients of automatic transmission fluid (ATF) jets were measured to better understand the heat transfer of ATF impinging on motor copper windings. Experiments were carried out at various ATF temperatures and jet velocities to quantify the influence of these parameters on heat transfer coefficients.
Authors:
; ;
Publication Date:
OSTI Identifier:
1168783
Report Number(s):
NREL/PR-5400-62919
DOE Contract Number:
AC36-08GO28308
Resource Type:
Conference
Resource Relation:
Conference: Presented at the 2014 Thermal Management Systems Symposium, 22-24 September 2014, Denver, Colorado; Related Information: NREL (National Renewable Energy Laboratory)
Research Org:
National Renewable Energy Laboratory (NREL), Golden, CO.
Sponsoring Org:
USDOE Office of Energy Efficiency and Renewable Energy Vehicle Technologies Office
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; 33 ADVANCED PROPULSION SYSTEMS; ELECTRIC MOTORS; HEAT TRANSFER; COOLING ELECTRIC MACHINE; ELECTRIC MOTOR; HEAT TRANSFER; COOLING; AUTOMATIC TRANSMISSION FLUID; LAMINATIONS