| dc.contributor.author | CAULFIELD, BRIAN | en |
| dc.date.accessioned | 2014-08-01T15:16:07Z | |
| dc.date.available | 2014-08-01T15:16:07Z | |
| dc.date.issued | 2010 | en |
| dc.date.submitted | 2010 | en |
| dc.identifier.citation | Ryan, F., Caulfield, B., Examining the Optimal Fuel Type for Urban Bus Operations, 89th Annual Meeting of the Transportation Research Board,, Washington D.C., 2010, CDROM | en |
| dc.identifier.other | Y | en |
| dc.identifier.uri | http://hdl.handle.net/2262/70659 | |
| dc.description | PUBLISHED | en |
| dc.description | Washington D.C. | en |
| dc.description.abstract | Public service fleets offer an attractive option for introducing renewable fuels and
alternative technologies on a large scale, which allow for the reduction of both
greenhouse gas emissions and exhaust air pollutants. This paper ex
amines the use of
biomethane (bio-CNG) and compressed natural gas (CNG) for part
of the bus fleet in
Dublin. Dublin is typical of many international urban centres
with a large bus fleet;
therefore the results detailed in this paper could be applied to other urban bus fleets.
The emissions produced from the 2008 fleet based at one of the
city’s seven bus
depots were compared to use of new diesel and bio-CNG buses, which
were modelled
using COPERT 4, a road transport emissions model developed by the
European
Commission. The optimum feedstock for bio-CNG production in Ireland was
investigated, as well as the quantity of feedstock needed to produce t
he required bio-CNG to fuel the bus fleet examined. The merits of producing bio-CNG in Ireland
were analysed in order to determine the best policy. As expected the results showed a
substantial decrease in all exhaust emissions from the use of
bio-CNG buses
compared the 2008 fleet. Grass silage was chosen as the optimum
feedstock for
production of bio-CNG in Ireland, and it was calculated using a sensitivity analysis
that 1,349 ha is the land take needed to produce the grass silage for bio-CNG required
to run the bus fleet examined. | en |
| dc.format.extent | CDROM | en |
| dc.language.iso | en | en |
| dc.rights | Y | en |
| dc.subject | Renewable fuels | en |
| dc.title | Examining the Optimal Fuel Type for Urban Bus Operations | en |
| dc.title.alternative | 89th Annual Meeting of the Transportation Research Board, | en |
| dc.type | Conference Paper | en |
| dc.type.supercollection | scholarly_publications | en |
| dc.type.supercollection | refereed_publications | en |
| dc.identifier.peoplefinderurl | http://people.tcd.ie/caulfib | en |
| dc.identifier.rssinternalid | 61914 | en |
| dc.rights.ecaccessrights | openAccess | |
| dc.subject.TCDTheme | Smart & Sustainable Planet | en |
