Determination of Nox and soot concentrations using a multi-wavelength opacimeter

Research output: Chapter in Book/Report/Conference proceedingChapterResearchpeer-review

Abstract

A novel approach to measure both the particle and the NO2 concentration in the exhaust of diesel engines during the roadworthiness test in the periodical technical inspection is presented. It is based on a multi-wavelength extinction measurement and a mathematical inversion algorithm to obtain the concentrations from the extinction readings. Such individual concentration values can deliver valuable insight into the cause of engine or exhaust aftertreatment defects. Furthermore the extended opacimeter provides future-proofness, if nitrous gas emissions are incorporated in the roadworthiness regulations. In addition to a detailed description of the multi-wavelength approach this chapter provides an overview of particle and nitrous gas emissions by diesel engines, the related legislation, the extinction measurement using standard opacimeters, and the physical background for this optical measurement method. The applicability of the multi-wavelength method is derived mathematically and validated with first experimental results as well as with simulations.

Original languageEnglish
Title of host publicationSmart Sensors, Measurement and Instrumentation
PublisherSpringer International Publishing AG
Pages1-19
Number of pages19
Volume23
DOIs
Publication statusPublished - 2017

Publication series

NameSmart Sensors, Measurement and Instrumentation
Volume23
ISSN (Print)2194-8402
ISSN (Electronic)2194-8410

Fingerprint

soot
Soot
extinction
diesel engines
Gas emissions
Wavelength
Diesel engines
wavelengths
gases
optical measurement
engines
inspection
Inspection
inversions
Engines
Defects
causes
defects
simulation

Keywords

  • Diesel particles
  • Light extinction
  • Multi-wavelength measurement
  • Nitrogen dioxide
  • Opacimeter

ASJC Scopus subject areas

  • Computer Science (miscellaneous)
  • Electrical and Electronic Engineering
  • Mechanical Engineering
  • Instrumentation

Cite this

Axmann, H., Bergmann, A., & Eichberger, B. (2017). Determination of Nox and soot concentrations using a multi-wavelength opacimeter. In Smart Sensors, Measurement and Instrumentation (Vol. 23, pp. 1-19). (Smart Sensors, Measurement and Instrumentation; Vol. 23). Springer International Publishing AG . https://doi.org/10.1007/978-3-319-47322-2_1

Determination of Nox and soot concentrations using a multi-wavelength opacimeter. / Axmann, H.; Bergmann, A.; Eichberger, B.

Smart Sensors, Measurement and Instrumentation. Vol. 23 Springer International Publishing AG , 2017. p. 1-19 (Smart Sensors, Measurement and Instrumentation; Vol. 23).

Research output: Chapter in Book/Report/Conference proceedingChapterResearchpeer-review

Axmann, H, Bergmann, A & Eichberger, B 2017, Determination of Nox and soot concentrations using a multi-wavelength opacimeter. in Smart Sensors, Measurement and Instrumentation. vol. 23, Smart Sensors, Measurement and Instrumentation, vol. 23, Springer International Publishing AG , pp. 1-19. https://doi.org/10.1007/978-3-319-47322-2_1
Axmann H, Bergmann A, Eichberger B. Determination of Nox and soot concentrations using a multi-wavelength opacimeter. In Smart Sensors, Measurement and Instrumentation. Vol. 23. Springer International Publishing AG . 2017. p. 1-19. (Smart Sensors, Measurement and Instrumentation). https://doi.org/10.1007/978-3-319-47322-2_1
Axmann, H. ; Bergmann, A. ; Eichberger, B. / Determination of Nox and soot concentrations using a multi-wavelength opacimeter. Smart Sensors, Measurement and Instrumentation. Vol. 23 Springer International Publishing AG , 2017. pp. 1-19 (Smart Sensors, Measurement and Instrumentation).
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