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Title: A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment

Abstract

An innovative system for cooling the power electronics of hybrid electric vehicles is presented. This system uses a typical automotive refrigerant R-134a (1,1,1,2 tetrafluoroethane) as the cooling fluid in a system that can be used as either part of the existing vehicle passenger air conditioning system or separately and independently of the existing air conditioner. Because of the design characteristics, the cooling coefficient of performance is on the order of 40. Because liquid refrigerant is used to cool the electronics directly, high heat fluxes can result while maintaining an electronics junction temperature at an acceptable value. In addition, an inverter housing that occupies only half the volume of a conventional inverter has been designed to take advantage of this cooling system. Planned improvements should result in further volume reductions while maintaining a high power level.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Power Electronics and Electric Machinery Research Facility
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
932102
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: Vehicle Power and Propulsion Conference, Arlington, VA, USA, 20070909, 20070912
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 33 ADVANCED PROPULSION SYSTEMS; AIR CONDITIONERS; AIR CONDITIONING; COEFFICIENT OF PERFORMANCE; COOLING SYSTEMS; DESIGN; INVERTERS; MOTORS; PROPULSION; REFRIGERANTS; HYBRID ELECTRIC-POWERED VEHICLES

Citation Formats

Ayers, Curtis William, Hsu, John S, Lowe, Kirk T, and Conklin, Jim. A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment. United States: N. p., 2007. Web.
Ayers, Curtis William, Hsu, John S, Lowe, Kirk T, & Conklin, Jim. A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment. United States.
Ayers, Curtis William, Hsu, John S, Lowe, Kirk T, and Conklin, Jim. Mon . "A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment". United States. doi:.
@article{osti_932102,
title = {A Unique Approach to Power Electronics and Motor Cooling in a Hybrid Electric Vehicle Environment},
author = {Ayers, Curtis William and Hsu, John S and Lowe, Kirk T and Conklin, Jim},
abstractNote = {An innovative system for cooling the power electronics of hybrid electric vehicles is presented. This system uses a typical automotive refrigerant R-134a (1,1,1,2 tetrafluoroethane) as the cooling fluid in a system that can be used as either part of the existing vehicle passenger air conditioning system or separately and independently of the existing air conditioner. Because of the design characteristics, the cooling coefficient of performance is on the order of 40. Because liquid refrigerant is used to cool the electronics directly, high heat fluxes can result while maintaining an electronics junction temperature at an acceptable value. In addition, an inverter housing that occupies only half the volume of a conventional inverter has been designed to take advantage of this cooling system. Planned improvements should result in further volume reductions while maintaining a high power level.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2007},
month = {Mon Jan 01 00:00:00 EST 2007}
}

Conference:
Other availability
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