Ambient Temperature and Driving Cycle Effects on CNG Motor Vehicle Emission

902069

10/01/1990

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
This paper describes an emissions study of two vans powered by compressed natural gas (CNG). One van was relatively new, while the other had been driven more than 120,000 mi. The purpose of the study was to obtain emissions information which could be used to predict the impact of CNG use on ambient air quality and air toxic concentrations, and to develop a better understanding of the effect of ambient temperature variations on CNG emissions. Using four different driving cycles, emission tests were carried out at 20°F, 75°F, and 105°F. Test results agree with previous findings that document low emissions of nonmethane hydrocarbons from CNG vehicles. Results also confirm the expectation that CNG emissions are not significantly affected by ambient temperature variations, although an increase in formaldehyde emission was noted for the 20°F cold-start tests.
Meta TagsDetails
DOI
https://doi.org/10.4271/902069
Pages
11
Citation
Gabele, P., Knapp, K., Ray, W., Snow, R. et al., "Ambient Temperature and Driving Cycle Effects on CNG Motor Vehicle Emission," SAE Technical Paper 902069, 1990, https://doi.org/10.4271/902069.
Additional Details
Publisher
Published
Oct 1, 1990
Product Code
902069
Content Type
Technical Paper
Language
English