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Title: CleanFleet. Final report: Volume 4, fuel economy

Abstract

Fuel economy estimates are provided for the CleanFleet vans operated for two years by FedEx in Southern California. Between one and three vehicle manufacturers (Chevrolet, Dodge, and Ford) supplied vans powered by compressed natural gas (CNG), propane gas, California Phase 2 reformulated gasoline (RFG), methanol (M-85), and unleaded gasoline as a control. Two electric G-Vans, manufactured by Conceptor Corporation, were supplied by Southern California Edison. Vehicle and engine technologies are representative of those available in early 1992. A total of 111 vans were assigned to FedEx delivery routes at five demonstration sites. The driver and route assignments were periodically rotated within each site to ensure that each vehicle would experience a range of driving conditions. Regression analysis was used to estimate the relationships between vehicle fuel economy and factors such as the number of miles driven and the number of delivery stops made each day. The energy adjusted fuel economy (distance per energy consumed) of the alternative fuel vans operating on a typical FedEx duty cycle was between 13 percent lower and 4 percent higher than that of control vans from the same manufacturer. The driving range of vans operating on liquid and gaseous alternative fuels was 1 percent tomore » 59 percent lower than for vans operating on unleaded gasoline. The driving range of the electric G-Vans was less than 50 miles. These comparisons are affected to varying degrees by differences in engine technology used in the alterative fuel and control vehicles. Relative fuel economy results from dynamometer emissions tests were generally consistent with those obtained from FedEx operations.« less

Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE, Washington, DC (United States)
OSTI Identifier:
212732
Report Number(s):
DOE/CH/10093-T25-Vol.4
ON: DE96007968; TRN: 96:002440
DOE Contract Number:  
AC36-83CH10093
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: Dec 1995
Country of Publication:
United States
Language:
English
Subject:
33 ADVANCED PROPULSION SYSTEMS; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FUEL CONSUMPTION; COMPARATIVE EVALUATIONS; EXHAUST GASES; EMISSION; FUELS; METHANOL; PROPANE; NATURAL GAS; UNLEADED GASOLINE; REGRESSION ANALYSIS; VANS; ELECTRIC-POWERED VEHICLES; FUEL SUBSTITUTION; STATISTICS

Citation Formats

. CleanFleet. Final report: Volume 4, fuel economy. United States: N. p., 1995. Web. doi:10.2172/212732.
. CleanFleet. Final report: Volume 4, fuel economy. United States. https://doi.org/10.2172/212732
. Fri . "CleanFleet. Final report: Volume 4, fuel economy". United States. https://doi.org/10.2172/212732. https://www.osti.gov/servlets/purl/212732.
@article{osti_212732,
title = {CleanFleet. Final report: Volume 4, fuel economy},
author = {},
abstractNote = {Fuel economy estimates are provided for the CleanFleet vans operated for two years by FedEx in Southern California. Between one and three vehicle manufacturers (Chevrolet, Dodge, and Ford) supplied vans powered by compressed natural gas (CNG), propane gas, California Phase 2 reformulated gasoline (RFG), methanol (M-85), and unleaded gasoline as a control. Two electric G-Vans, manufactured by Conceptor Corporation, were supplied by Southern California Edison. Vehicle and engine technologies are representative of those available in early 1992. A total of 111 vans were assigned to FedEx delivery routes at five demonstration sites. The driver and route assignments were periodically rotated within each site to ensure that each vehicle would experience a range of driving conditions. Regression analysis was used to estimate the relationships between vehicle fuel economy and factors such as the number of miles driven and the number of delivery stops made each day. The energy adjusted fuel economy (distance per energy consumed) of the alternative fuel vans operating on a typical FedEx duty cycle was between 13 percent lower and 4 percent higher than that of control vans from the same manufacturer. The driving range of vans operating on liquid and gaseous alternative fuels was 1 percent to 59 percent lower than for vans operating on unleaded gasoline. The driving range of the electric G-Vans was less than 50 miles. These comparisons are affected to varying degrees by differences in engine technology used in the alterative fuel and control vehicles. Relative fuel economy results from dynamometer emissions tests were generally consistent with those obtained from FedEx operations.},
doi = {10.2172/212732},
url = {https://www.osti.gov/biblio/212732}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {12}
}