Testing of dual fuel tractor units before and after conversion to dual fuel to analyse engine emissions.
Dual fuel CO2 emissions are 4%, 9% and 12% lower than diesel over urban, rural and motorway phases of the drive cycle.
Total GHG (CO2e) emissions for dual fue are 17%, 13% and 24% higher than diesel over the urban, rural and motorway phases of the drive cycle respectively, as a result of methane slip.
Exhaust after-treatment using an effective methane oxidation catalyst can lead to approximately 5-8% reduction in total GHG.
|% Fuel Saving:||Although dual fuel operation has the benefit of reduced fuel costs, total GHG emissions for Euro V retrofitted dual-fuel systems are higher than diesel over urban, rural and motorway drive cycles.|
| Cost of implementation:
| Implementation strategy:
|Do not implement at this time.|
- Stettler, M. E. J., et al. (2014). Greenhouse gas emissions from dual fuel HGVs. Centre for Sustainable Road Freight Technical Report CUED/C-SRF/TR04 ISSN: 2054-4081(Confidential) Department of Engineering, University of Cambridge, Cambridge.
- Stettler, M. E. J., et al. (2016), ‘Greenhouse Gas and Noxious Emissions from Dual Fuel Diesel and Natural Gas Heavy Goods Vehicles.’ Environmental Science & Technology 50,(4): 2018-2026. DOI: https://dx.doi.org/10.1021/acs.est.5b04240