This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Comparative Studies of Exhaust Emissions from Three City Buses in Real Traffic Conditions, One with LNG, the Other with CI Engine and a Hybrid Bus
Technical Paper
2020-01-2191
ISSN: 0148-7191, e-ISSN: 2688-3627
This content contains downloadable datasets
Annotation ability available
Sector:
Language:
English
Abstract
There is a growing appreciation for using buses powered by alternative fuels in urban transport. Considered as such are city bus with engines fuelled with LNG and hybrid bus. This article, as shown above, provides a comparison of road exhaust emissions from three city buses: one with a CI engine fuelled with diesel fuel, and the other with a SI engine fuelled with LNG and Hybrid bus. Both vehicles (CI and LNG) conformed to Euro VI emission standard (hybrid bus EEV), and the tests were carried out in real traffic conditions. Equivocal opinions about differences in emissions from those types of buses, among others - CO2 and NOx emissions, were the underlying cause of the tests.
The comparative study was carried out along the same urban routes during bus trips over the following days in similar traffic conditions. Exhaust road emission was determined based on the vehicle's curb weight and route length, and operating fuel consumption. Also, the study was consistent with the most requirements laid down in the regulation regarding estimates of fuel consumption consistency ratio during road tests from heavy-duty vehicles.
For that reason, it was necessary to determine the conformity factor for relevant exhaust sub-stances in exhaust gases in window functions, based on which the assumption on the fulfilment of emission requirements for three buses in real traffic conditions was verified. The values thus established of emissions of exhaust substances from exhaust gases in tested city buses did practically not exceed permissible limit CO values, while for NOx and NMHC there are some exceedances. The tests were not type approval.
Recommended Content
Authors
Topic
Citation
Gis, W., Gis, M., and Pielecha, J., "Comparative Studies of Exhaust Emissions from Three City Buses in Real Traffic Conditions, One with LNG, the Other with CI Engine and a Hybrid Bus," SAE Technical Paper 2020-01-2191, 2020, https://doi.org/10.4271/2020-01-2191.Data Sets - Support Documents
| Title | Description | Download |
|---|---|---|
| Unnamed Dataset 1 | ||
| Unnamed Dataset 2 |
Also In
References
- Johnson , T. , and Joshi , A. Review of Vehicle Engine Efficiency and Emissions SAE Int. J. Engines 11 6 1307 1330 2018 10.2307/26649163
- Gis , M. Comparative Studies Exhaust Emissions of the Euro VI Buses with Diesel Engine and Spark-Ignition Engine CNG Fuelled in Real Traffic Conditions MATEC Web of Conf 118 00007 2017 10.1051/matecconf/201711800007
- Gis , M. Assessment of Exhaust Emissions from Vehicles in Real Traffic Conditions IOP Conf Ser Earth and Environ Sci 214 012035 2019 10.1088/1755-1315/214/1/012035
- Merkisz , J. , Pielecha , J. , and Gis , W. Comparison of Vehicle Emission Factors in NEDC Cycle and Road Test Proceedings of The Ninth Asia-Pacific International Symposium on Combustion and Energy Utilization 2008 477 482
- Merkisz , J. , Pielecha , J. , and Radzimirski , S. New Trends in Emission Control in the European Union Springer Tracts on Transportation and Traffic 4 67 90 2014 10.1007/978-3-319-02705-0
- Merkisz , J. , Fuc , P. , Lijewski , P. , and Pielecha , J. Actual Emissions from Urban Buses Powered with Diesel and Gas Engines Transportation Research Procedia 14 30470 33078 2016
- Merkisz , J. , Pielecha , J. , and Gis , W. On-road Testing and Characterization of the Exhaust Emissions of Light-Duty Vehicles Sustainable Development and Planning 1-2 120 439 449 2009
- Nowak , M. , and Pielecha , J. Comparison of Exhaust Emission on the Basis of Real Driving Emissions Measurements and Simulation MATEC Web of Conf 118 00026 2017 10.1051/matecconf/201711800026
- Merkisz , J. , and Pielecha , J. Conversion of the Exhaust Emission Results Obtained from Combustion Engines of Heavy-Duty Vehicles IOP Conf Ser Mat Sci and Eng 148 012078 2016 10.1088/1757-899X/148/1/012078
- Kollamthodi , S. , Norris , J. , et al. 2016
- Commission Regulation (EU)
- Commission Regulation (EU)
- Commission Regulation (EU) 2013
- Commission Regulation (EU)
- Commission Regulation (EU)
- Commission Regulation (EU)
- Commission Regulation (EU) 2016
- 2017
- Commission Regulation
- 2017
- RDE Act 4 2018