Hygroscopic properties of carbon and diesel soot particles
No Thumbnail Available
Authors
Author (Corporation)
Publication date
08/1997
Typ of student thesis
Course of study
Collections
Type
01A - Journal article
Editors
Editor (Corporation)
Supervisor
Parent work
Atmospheric Environment
Special issue
DOI of the original publication
Link
Series
Series number
Volume
31
Issue / Number
15
Pages / Duration
2311-2327
Patent number
Publisher / Publishing institution
Elsevier
Place of publication / Event location
Amsterdam
Edition
Version
Programming language
Assignee
Practice partner / Client
Abstract
Laboratory 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.
Keywords
Subject (DDC)
550 - Geowissenschaften
540 - Chemie
624 - Ingenieurbau und Umwelttechnik
540 - Chemie
624 - Ingenieurbau und Umwelttechnik
Event
Exhibition start date
Exhibition end date
Conference start date
Conference end date
Date of the last check
ISBN
ISSN
1352-2310
0004-6981
0004-6981
Language
English
Created during FHNW affiliation
No
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
Closed
License
Citation
WEINGARTNER, Ernest, Heinz BURTSCHER und Urs BALTENSPERGER, 1997. Hygroscopic properties of carbon and diesel soot particles. Atmospheric Environment. August 1997. Bd. 31, Nr. 15, S. 2311–2327. DOI 10.1016/s1352-2310(97)00023-x. Verfügbar unter: https://irf.fhnw.ch/handle/11654/46913