Physical and chemical properties of particles emitted from heavy duty diesel vehicles operating with advanced emission control technologies

Subhasis Biswas, Shaohua Hu, Vishal Verma, Jorn D. Herner, William H. Robertson, Alberto Ayala, Andrea Polidori, Constantinos Sioutas

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The physicochemical and toxicological characteristics of the volatile and non-volatile fractions of particles emitted from different engines, fuels, and emissions control were studied. The test fleet comprised of four heavy-duty diesel vehicles, a Kenworth truck served as a "baseline vehicle". Different emission control technologies, i.e., a Continuously Regenerating Technology [CRT®], consisting of a diesel oxidation catalyst (DOC) followed by an un-catalyzed trap, and CRT® in combination with a SCR system (zeolite or vanadium based SCRT). Most of the control devices reduced the particulate mass significantly while increasing the particle number concentration. Nucleation mode particles were highly volatile in nature and the predominant chemical species present in the vehicles' exhausts were sulfate and total carbon. This is an abstract of a paper presented at the 101st AWMA Annual Conference and Exhibition (Portland, OR 6/24-27/2008).

Original languageEnglish (US)
Title of host publication101st Air and Waste Management Association Annual Conference and Exhibition 2008
Pages3425-3429
Number of pages5
StatePublished - Dec 1 2008
Externally publishedYes
Event101st Air and Waste Management Association Annual Conference and Exhibition 2008 - Portland, OR, United States
Duration: Jun 24 2008Jun 27 2008

Publication series

NameProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
Volume6
ISSN (Print)1052-6102

Other

Other101st Air and Waste Management Association Annual Conference and Exhibition 2008
Country/TerritoryUnited States
CityPortland, OR
Period6/24/086/27/08

Keywords

  • And motor vehicle emissions
  • Chassis dynamometer tests
  • Emission control technologies
  • Heavy duty diesel vehicles

ASJC Scopus subject areas

  • Environmental Science(all)
  • Energy(all)

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