Exhaust emission and fuel consumption of CNG/diesel fueled city buses calculated using a sample driving cycle
- Technical Univ. of Istanbul (Turkey). Dept. of Mechanical Engineering
In this study the reduction of pollutant emissions from city buses converted to dual fuel operation was investigated. Exhaust emission and fuel consumption maps were obtained under laboratory conditions for an engine converted to CNG/diesel fuel operation. These values are then used in the simulation model to predict the total exhaust emission and fuel consumption on a driving cycle evaluated from actual recordings. Calculations showed a significant decrease in particulate matter (PM) emissions as expected, while the total CO emissions minor changes have been observed. For dual fuel operation NO{sub x} emissions were kept at the same level as in pure diesel operation with retarded pilot injection. Fuel cost calculations showed a decrease up to 30% with current prices of diesel fuel and CNG.
- OSTI ID:
- 328327
- Journal Information:
- Energy Sources, Journal Name: Energy Sources Journal Issue: 3 Vol. 21; ISSN EGYSAO; ISSN 0090-8312
- Country of Publication:
- United States
- Language:
- English
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