Remote sensing measurements of NOx and PM emissions from light & heavy-duty diesels

Katey E. Lenox, Al Akerman, Curt W. Ayers, Thang Q. Dam, Shawn Goedeke, Howard Haynes, Ralph N. McGill, Roger Richards, John M. Storey, Meng Dawn Cheng, Marc Simpson, Walt G. Fisher, Eric A. Wachter

Research output: Contribution to journalConference articlepeer-review

Abstract

For the last 2 yr, a team of researchers at Oak Ridge National Laboratory has been developing prototype instruments to remotely and non-intrusively measure the NOx and particulate matter (PM) emissions from heavy-duty trucks as they drive down the road. The results of experiments using various diesel vehicles was presented. The prototype emissions monitoring instruments employ an UV absorption method to measure NOx and a modified LIDAR method to measure PM concentrations. The acoustic measurement technique had the spatial and temporal resolution necessary to make the desired measurements in the field. The NOx measurement technique had the spatial resolution to gather the data of interest, but enhancements would be needed to improve the temporal resolution for highway speeds. The PM measurement technique is improving, but required some additional enhancements and laboratory study to obtain more useful results. This is an abstract of a paper presented at the AWMA 97th Annual Conference and Exhibition (Indianapolis, IN 6/22-25/2004).

Original languageEnglish
JournalProceedings of the Air and Waste Management Association's Annual Meeting and Exhibition
StatePublished - 2004
EventAWMA's 97th Annual Conference and Exhibition; Sustainable Development: Gearing Up for the Challenge - Indianapolis, IN, United States
Duration: Jun 22 2004Jun 25 2004

Keywords

  • Acoustic
  • Diesel emissions
  • Heavy-duty
  • LIDAR
  • Remote sensing
  • UV

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