Opportunities to Reduce Air-Conditioning Loads Through Lower Cabin Soak Temperatures
Air-conditioning loads can significantly reduce electric vehicle (EV) range and hybrid electric vehicle (HEV) fuel economy. In addition, a new U. S. emissions procedure, called the Supplemental Federal Test Procedure (SFTP), has provided the motivation for reducing the size of vehicle air-conditioning systems in the United States. The SFTP will measure tailpipe emissions with the air-conditioning system operating. If the size of the air-conditioning system is reduced, the cabin soak temperature must also be reduced, with no penalty in terms of passenger thermal comfort. This paper presents the impact of air-conditioning on EV range and HEV fuel economy, and compares the effectiveness of advanced glazing and cabin ventilation. Experimental and modeled results are presented.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC36-98-GO10337
- OSTI ID:
- 9822
- Report Number(s):
- NREL/CP-540-26615; ON: DE00009822; TRN: US200306%%291
- Resource Relation:
- Conference: Presented at the 16th Electric Vehicle Symposium, Beijing (CN), 10/13/1999--10/16/1999; Other Information: PBD: 12 Jul 1999
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
14 SOLAR ENERGY
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR CONDITIONING
EV RANGE
FEDERAL TEST PROCEDURE
FUEL CONSUMPTION
GLAZING MATERIALS
OCCUPANTS
THERMAL COMFORT
VENTILATION
COOLING
SOLAR ENERGY
ELECTRIC-POWERED VEHICLES
AIR-CONDITIONING
ENERGY
HEAT EXCHANGE
THERMAL MANAGEMENT