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Engine cold start analysis using naturalistic driving data: City level impacts on local pollutants emissions and energy consumption

dc.contributor.authorFaria, Marta
dc.contributor.authorVarella, Roberto A.
dc.contributor.authorDuarte, Gonçalo
dc.contributor.authorFarias, Tiago L.
dc.contributor.authorBaptista, Patricia
dc.date.accessioned2018-03-06T09:15:11Z
dc.date.available2018-03-06T09:15:11Z
dc.date.issued2018-07-15
dc.description.abstractThe analysis of vehicle cold start emissions has become an issue of utmost importance since the cold phase occurs mainly in urban context, where most of the population lives. In this sense, this research work analyzes and quantifies the impacts of cold start in urban context using naturalistic driving data. Furthermore, an assessment of the influence of ambient temperature on the percentage of time spent on cold start was also performed. Regarding the impacts of ambient temperature on cold start duration, a higher percentage of time spent on cold start was found for lower ambient temperatures (80% of the time for 0 °C and ~50% for 29 °C). Results showed that, during cold start, energy consumption is >110% higher than during hot conditions while emissions are up to 910% higher. Moreover, a higher increase on both energy consumption and emissions was found for gasoline vehicles than for diesel vehicles. When assessing the impacts on a city perspective, results revealed that the impacts of cold start increase for more local streets. The main finding of this study is to provide evidence that a higher increase on emissions occurs on more local streets, where most of the population lives. This kind of knowledge is of particular relevance to urban planners in order to perform an informed definition of public policies and regulations to be implemented in the future, to achieve a cleaner and healthier urban environment.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationFARIA, Marta V.; [et al] – Engine cold start analysis using naturalistic driving data: City level impacts on local pollutants emissions and energy consumption. Science of The Total Environment. ISSN 0048-9697. Vol. 630 (2018), pp. 544-559pt_PT
dc.identifier.doihttps://doi.org/10.1016/j.scitotenv.2018.02.232pt_PT
dc.identifier.issn0048-9697
dc.identifier.urihttp://hdl.handle.net/10400.21/8200
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationFCT - PD/BD/105714/2014pt_PT
dc.relationMITP-TB/C S/0026/2013 - SusCity Projectpt_PT
dc.relation.publisherversionhttps://ac.els-cdn.com/S0048969718306326/1-s2.0-S0048969718306326-main.pdf?_tid=15b3b87d-f0da-40d2-b8fb-ccad76b894ea&acdnat=1520326960_bb23e77d90df5395e0769c55fb9f62dfpt_PT
dc.subjectCold startpt_PT
dc.subjectAmbient temperaturept_PT
dc.subjectEnergy consumptionpt_PT
dc.subjectEmissionspt_PT
dc.subjectVehicle specific powerpt_PT
dc.titleEngine cold start analysis using naturalistic driving data: City level impacts on local pollutants emissions and energy consumptionpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEMS%2F50022%2F2013/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876/UID%2FEEA%2F50009%2F2013/PT
oaire.citation.endPage559pt_PT
oaire.citation.startPage544pt_PT
oaire.citation.titleScience of the Total Environmentpt_PT
oaire.citation.volume630pt_PT
oaire.fundingStream5876
oaire.fundingStream5876
person.familyNameFaria
person.familyNameDuarte
person.familyNameBaptista
person.givenNameMarta
person.givenNameGonçalo
person.givenNamePatricia
person.identifier.ciencia-id6918-836F-646D
person.identifier.ciencia-id0D18-21FF-BD67
person.identifier.orcid0000-0002-7801-0888
person.identifier.orcid0000-0002-7216-611X
person.identifier.orcid0000-0003-1559-9151
person.identifier.ridI-1242-2014
person.identifier.ridA-5356-2012
person.identifier.scopus-author-id57189656488
person.identifier.scopus-author-id16202135300
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsclosedAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication060bb526-9d2c-4717-91dc-2f91262667c7
relation.isAuthorOfPublication988ac929-a49e-4479-ae9d-3cf902ebb067
relation.isAuthorOfPublication.latestForDiscovery988ac929-a49e-4479-ae9d-3cf902ebb067
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