Real-World Exhaust Emissions of Diesel Locomotives and Motorized Railcars during Scheduled Passenger Train Runs on Czech Railroads

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dc.contributor.authorVojtíšek Michalcs
dc.contributor.authorVojtíšek Michalcs
dc.contributor.authorJirků Jonášcs
dc.contributor.authorPechout Martincs
dc.date.accessioned2021-01-14T18:02:59Z
dc.date.available01-20-2020en
dc.date.available2021-01-14T18:02:59Z
dc.date.issued2020cs
dc.date.updated19-51-2020en
dc.description.abstractThe paper summarizes exhaust emissions measurements on two diesel-electric locomotives and one diesel-hydraulic railcar, each tested for several days during scheduled passenger service. While real driving emissions of buses decrease with fleet turnaround and have been assessed by many studies, there are virtually no realistic emissions data on diesel rail vehicles, many of which are decades old. The engines were fitted with low-power portable online monitoring instruments, including a portable Fourier Transform Infra Red (FTIR) spectrometer, online particle measurement, and in two cases with proportional particle sampling systems, all installed in engine compartments. Due to space constraints and overhead electric traction lines, exhaust flow was computed from engine operating data. Real-world operation was characterized by relatively fast power level transitions during accelerations and interleaved periods of high load and idle, and varied considerably among service type and routes. Spikes in PM emissions during accelerations and storage of PM in the exhaust were observed. Despite all engines approaching the end of their life, the emissions per passenger-km were very low compared to automobiles. Tests were done at very low costs with no disruption of the train service, yielded realistic data, and are also applicable to diesel-hydraulic units, which cannot be tested at standstill.en
dc.format.extent26cs
dc.identifier.doi10.3390/atmos11060582
dc.identifier.issn2073-4433cs
dc.identifier.urihttps://dspace.tul.cz/handle/15240/158448
dc.language.isoengcs
dc.publisherMDPIcs
dc.publisher.cityBaselcs
dc.relation.ispartofAtmosphereen
dc.relation.ispartofseries582cs
dc.subjectlocomotivescs
dc.subjectnon-road enginescs
dc.subjectrailcs
dc.subjectdiesel-electriccs
dc.subjectemissionscs
dc.subjectreal-world emissionscs
dc.subjectportable on-board emissions monitoring systemscs
dc.subjectNOxcs
dc.subjectparticulate mattercs
dc.subjectreal driving emissionscs
dc.subjectPARTICULATE MATTER EMISSIONScs
dc.subjectNOX EMISSIONScs
dc.subjectOPERATIONcs
dc.subjectENGINEcs
dc.subjectCARScs
dc.titleReal-World Exhaust Emissions of Diesel Locomotives and Motorized Railcars during Scheduled Passenger Train Runs on Czech Railroadscs
local.identifier.publikace7775
local.identifier.wok000551742600001en
local.relation.issue6cs
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