Hygroscopic properties of carbon and diesel soot particles

dc.contributor.authorWeingartner, Ernest
dc.contributor.authorBurtscher, Heinz
dc.contributor.authorBaltensperger, Urs
dc.date.accessioned2024-08-22T13:40:04Z
dc.date.available2024-08-22T13:40:04Z
dc.date.issued1997-08
dc.description.abstractLaboratory experiments were performed in order to study the hygroscopic properties of freshly produced carbon and diesel soot particles at subsaturations (i.e. at relative humidity < 100%). Wetted carbon aggregates collapsed to a more compact structure. In contrast, the diesel combustion particles exhibited a much smaller restructuring combined with condensational growth. The hygroscopicity of the diesel particles was enhanced when the sulfur content of the fuel was increased or when the particles were subjected to an ozone and UV pre-treatment. By extrapolating the data with a Köhler model critical supersaturations were calculated. Freshly emitted combustion particles are unlikely to act as cloud condensation nuclei whereas an aging of the particles will enhance their nucleation ability.
dc.identifier.doi10.1016/s1352-2310(97)00023-x
dc.identifier.issn1352-2310
dc.identifier.issn0004-6981
dc.identifier.urihttps://irf.fhnw.ch/handle/11654/46913
dc.issue15
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofAtmospheric Environment
dc.spatialAmsterdam
dc.subject.ddc550 - Geowissenschaften
dc.subject.ddc540 - Chemie
dc.subject.ddc624 - Ingenieurbau und Umwelttechnik
dc.titleHygroscopic properties of carbon and diesel soot particles
dc.type01A - Beitrag in wissenschaftlicher Zeitschrift
dc.volume31
dspace.entity.typePublication
fhnw.InventedHereNo
fhnw.ReviewTypeAnonymous ex ante peer review of a complete publication
fhnw.affiliation.hochschuleHochschule für Technikde_CH
fhnw.affiliation.institutlnstitut für Sensorik und Elektronikde_CH
fhnw.openAccessCategoryClosed
fhnw.pagination2311-2327
fhnw.publicationStatePublished
relation.isAuthorOfPublication05dd9a19-7a24-4325-805a-2d121483b168
relation.isAuthorOfPublication.latestForDiscovery05dd9a19-7a24-4325-805a-2d121483b168
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