FUEL CONSUMPTION MEASUREMENTS-CARBON BALANCE VS. FLOW METER

In a recent EPA experiment, fuel consumption data was obtained by both the carbon balance method and the fuel flow method. This report was prepared to describe and compare the two methods of measurements. EPA fuel economy measurements are currently obtained by the carbon balance method. Fuel consumption can also be measured by several other methods such as volumetric, fuel flow meters, or gravimetric methods. Accurate comparison between methods must be done statistically and requires a large data base. A recent EPA program which investigated the accuracy of the dynamometer simulation of the speed of a vehicle consisted of numerous repetitive steady state dynamometer tests. This program provided an opportunity to obtain sufficient fuel consumption measurements by both methods for the statistical analysis necessary to detect any difference between the methods.

• Corporate Authors:

  Environmental Protection Agency

  Standards Development & Support Branch, 2565 Plymouth Road
  Ann Arbor, MI  United States  48105
• Authors:
  • Turton, D
• Publication Date: 1979-7

Media Info

• Pagination: 10 p.

Subject/Index Terms

• TRT Terms: Alternatives analysis; Carbon; Chemical analysis; Flow; Flowmeters; Fuel consumption; Gravimetric analysis; Measurement; Methodology; Motor vehicles; Statistical analysis; Volumetric analysis
• Uncontrolled Terms: Flow rate
• Old TRIS Terms: Gravimetric analyses
• Subject Areas: Data and Information Technology; Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 00313417
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: EPA-AA-SDSB-79-28 Tech Rpt.
• Files: TRIS
• Created Date: Jun 26 1996 12:00AM