Novel method for on-road emission factor measurements using a plume capture trailer

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • L. Morawska
  • Z. D. Ristovski
  • G. R. Johnson
  • E. R. Jayaratne
  • K. Mengersen

Detail(s)

Original languageEnglish
Pages (from-to)574-579
Journal / PublicationEnvironmental Science and Technology
Volume41
Issue number2
Publication statusPublished - 15 Jan 2007
Externally publishedYes

Abstract

The method outlined provides for emission factor measurements to be made for unmodified vehicles driving under real world conditions at minimal cost. The method consists of a plume capture trailer towed behind a test vehicle. The trailer collects a sample of the naturally diluted plume in a 200 L conductive bag and this is delivered immediately to a mobile laboratory for subsequent analysis of particulate and gaseous emissions. The method offers low test turnaround times with the potential to complete much larger numbers of emission factor measurements than have been possible using dynamometer testing. Samples can be collected at distances up to 3 m from the exhaust pipe allowing investigation of early dilution processes. Particle size distribution measurements, as well as particle number and mass emission factor measurements, based on naturally diluted plumes are presented. A dilution profile relating the plume dilution ratio to distance from the vehicle tail pipe for a diesel passenger vehicle is also presented. Such profiles are an essential input for new mechanistic roadway air quality models. © 2007 American Chemical Society.

Citation Format(s)

Novel method for on-road emission factor measurements using a plume capture trailer. / Morawska, L.; Ristovski, Z. D.; Johnson, G. R.; Jayaratne, E. R.; Mengersen, K.

In: Environmental Science and Technology, Vol. 41, No. 2, 15.01.2007, p. 574-579.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review