Diesel fuel-fired heater emissions from a battery electric transit bus in real-world conditions

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dc.contributor.author
Humphries, Kieran
Rashid, Hussein
Araji, Fadi
dc.date.accepted
2023-12-28
dc.date.accessioned
2024-05-27T19:36:20Z
dc.date.available
2024-05-27T19:36:20Z
dc.date.issued
2024-02-01
dc.date.submitted
2023-07-07
dc.description.abstract - en
Battery electric transit buses sold in Canada generally include a fuel-fired diesel auxiliary heater for cabin heating in cold weather. This report details a test project, performed in collaboration with OC Transpo, to capture and quantify the emissions from such a fuel-fired heater (FFH) installed on a New Flyer XE40 battery electric transit bus from OC Transpo’s fleet in Ottawa, Canada. The FFH was tested while the bus was both stationary and being driven on-road in cold conditions. The results include the emissions rates of carbon dioxide, carbon monoxide, nitrogen oxides, hydrocarbons and methane, and soot. Additionally, total particulate matter results were obtained during stationary testing. The results of stationary testing were compared to the California Air Resources Board and European Union standards for FFH emissions, even though these standards do not apply directly to buses operated outside of these jurisdictions. During stationary testing, average emissions of carbon monoxide and non-methane organic gases (hydrocar bons) were 0.069 g/mi and 0.035 g/mi, respectively, which are both within their respective regulated limits for FFH emissions in California. However, the California nitrogen oxide limit was exceeded during stationary testing with an average value of 0.337 g/mi. In addition, momentary exceedances of the concentration limits for carbon monoxide and hydrocarbons set in European Union Regulation 122 were detected during stationary testing, but these were very short-lived.
dc.identifier.doi
https://doi.org/10.4271/2024-01-5011
dc.identifier.issn
0148-7191
2688-3627
dc.identifier.uri
https://open-science.canada.ca/handle/123456789/2522
dc.language.iso
en
dc.publisher
SAE International
dc.rights - en
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights - fr
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.rights.openaccesslevel - en
Gold
dc.rights.openaccesslevel - fr
Or
dc.rights.uri - en
https://creativecommons.org/licenses/by/4.0/
dc.rights.uri - fr
https://creativecommons.org/licenses/by/4.0/deed.fr
dc.subject - en
Nature and environment
Science and technology
dc.subject - fr
Nature et environnement
Sciences et technologie
dc.subject.en - en
Nature and environment
Science and technology
dc.subject.fr - fr
Nature et environnement
Sciences et technologie
dc.title - en
Diesel fuel-fired heater emissions from a battery electric transit bus in real-world conditions
dc.type - en
Article
dc.type - fr
Article
local.article.journaltitle
SAE Technical Paper
local.pagination
11 pages
local.peerreview - en
Yes
local.peerreview - fr
Oui
local.requestdoi
No
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