Challenges and Potential Solutions for Reducing Climate Control Loads in Conventional and Hybrid Vehicles
Conference
·
OSTI ID:3528
The National Renewable Energy Laboratory, a U.S. Department of Energy national laboratory, is collaborating with U.S. automotive manufacturers to develop innovative techniques to reduce national fuel consumption and vehicle tailpipe emissions by reducing vehicle climate control loads. A new U.S. emissions test, the Supplemental Federal Test Procedure (SFTP), will soon begin measuring tailpipe emissions with the air conditioning system operating. Modeled results show that emissions of oxides of nitrogen (NOx) and carbon monoxide (CO) more than double during the air conditioning part of the SFTP. Reducing the transmittance of the glazing can have a greater impact on the cabin soak temperature than ventilating the vehicle during a hot soak. Reducing the amount of outside air can decrease cooling and heating loads but requires that the recirculated air be cleaned. We discuss a photocatalytic oxidation air-cleaning process for removing volatile organic compounds and bioareosols. We conclude with an example of modeling the thermal comfort of the occupants. An auxiliary load increase of only 400 Watts (W) results in a 0.4 km/L (1 mpg) decrease for a conventional 11.9-L/100-km (28-mpg) vehicle. If every vehicle in the United States were to save only 0.4 km/L (1 mpg), $4 billion (U.S. dollars) would be saved annually in gasoline and oil costs. Further information can be found at http://www.ctts.nrel.gov/auxload.html.
- Research Organization:
- National Renewable Energy Laboratory, Golden, CO (US)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- AC36-83CH10093
- OSTI ID:
- 3528
- Report Number(s):
- NREL/CP-540-25975; ON: DE00003528; ON: DE00003528
- Country of Publication:
- United States
- Language:
- English
Similar Records
Opportunities to Reduce Air-Conditioning Loads Through Lower Cabin Soak Temperatures
Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint
Fabrication and Optimization of Properties of Polymer Laminated Nanoreinforced Automobile Glasses: Experiments and Modeling
Conference
·
Mon Jul 12 00:00:00 EDT 1999
·
OSTI ID:9822
Impact of Vehicle Air-Conditioning on Fuel Economy, Tailpipe Emissions, and Electric Vehicle Range: Preprint
Conference
·
Fri Sep 22 00:00:00 EDT 2000
·
OSTI ID:764573
Fabrication and Optimization of Properties of Polymer Laminated Nanoreinforced Automobile Glasses: Experiments and Modeling
Journal Article
·
Thu May 01 00:00:00 EDT 2008
· Journal of Polymer Science. Part A, Polymer chemistry, 50(5):568-572
·
OSTI ID:936756