Greenhouse gas and noxious emissions from dual fuel diesel and natural gas heavy goods vehicles
journal contribution
posted on 2021-01-28, 11:29 authored by Marc EJ Stettler, William Midgley, Jacob J Swanson, David Cebon, Adam M Boies© 2016 American Chemical Society. Dual fuel diesel and natural gas heavy goods vehicles (HGVs) operate on a combination of the two fuels simultaneously. By substituting diesel for natural gas, vehicle operators can benefit from reduced fuel costs and as natural gas has a lower CO2 intensity compared to diesel, dual fuel HGVs have the potential to reduce greenhouse gas (GHG) emissions from the freight sector. In this study, energy consumption, greenhouse gas and noxious emissions for five after-market dual fuel configurations of two vehicle platforms are compared relative to their diesel-only baseline values over transient and steady state testing. Over a transient cycle, CO2 emissions are reduced by up to 9%; however, methane (CH4) emissions due to incomplete combustion lead to CO2e emissions that are 50-127% higher than the equivalent diesel vehicle. Oxidation catalysts evaluated on the vehicles at steady state reduced CH4 emissions by at most 15% at exhaust gas temperatures representative of transient conditions. This study highlights that control of CH4 emissions and improved control of in-cylinder CH4 combustion are required to reduce total GHG emissions of dual fuel HGVs relative to diesel vehicles.
Funding
Centre for Sustainable Road Freight Transport
Engineering and Physical Sciences Research Council
Find out more...UK Department for Transport, the Office for Low Emission Vehicles and Innovate UK (project reference: 400266)
History
School
- Mechanical, Electrical and Manufacturing Engineering
Published in
Environmental Science & TechnologyVolume
50Issue
4Pages
2018 - 2026Publisher
American Chemical Society (ACS)Version
- VoR (Version of Record)
Rights holder
© American Chemical SocietyPublisher statement
This is an Open Access Article. It is published by American Chemical Society under the Creative Commons Attribution 4.0 Unported Licence (CC BY). Full details of this licence are available at: http://creativecommons.org/licenses/by/4.0/Acceptance date
2016-01-12Publication date
2016-01-12Copyright date
2016ISSN
0013-936XeISSN
1520-5851Publisher version
Language
- en
Depositor
Deposit date: 28 January 2021Usage metrics
Categories
No categories selectedKeywords
Science & TechnologyTechnologyLife Sciences & BiomedicineEngineering, EnvironmentalEnvironmental SciencesEngineeringEnvironmental Sciences & EcologySELECTIVE CATALYTIC-REDUCTIONPARTICULATE MATTERPARTICLE NUMBERCOMBUSTIONENGINEPERFORMANCECOMPRESSIONMETHANEMASSTEMPERATURECarbon DioxideGasolineMethaneMotor VehiclesNatural GasNitrogen OxidesParticulate MatterVehicle Emissions
Licence
Exports
RefWorksRefWorks
BibTeXBibTeX
Ref. managerRef. manager
EndnoteEndnote
DataCiteDataCite
NLMNLM
DCDC