A photoacoustic sensor system for time resolved quantification of diesel soot emissions

Wolfgang Schindler; Christoph Haisch; Harald A. Beck; Reinhard Niessner; Eberhard Jacob; Dieter Rothe

doi:10.4271/2004-01-0968

A photoacoustic sensor system for time resolved quantification of diesel soot emissions

Wolfgang Schindler, Christoph Haisch, Harald A. Beck, Reinhard Niessner, Eberhard Jacob, Dieter Rothe

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

93 Scopus citations

Abstract

The reduction of particulate emissions limits requires new tools for the tuning of engines and exhaust aftertreatment systems. Time-resolved monitoring of low soot emissions is a key feature for such developments. The paper describes an improved photoacoustic soot sensor, and presents its applications for the characterization of transient exhaust soot emissions before and after Diesel emission after-treatment systems. The detection limit of the unit is around 5 μg/m³ soot, which is two orders of magnitude better than conventional time-resolved transmission measurement. Additionally, a wide dynamic range of four orders of magnitude can be achieved without range switching. The photoacoustic signal is proportional to the soot mass, no significant cross-sensitivities to gaseous absorbers were detected.

Original language	English
Title of host publication	2004 SAE World Congress
Publisher	SAE International
ISBN (Print)	0768013194, 9780768013191
DOIs	https://doi.org/10.4271/2004-01-0968
State	Published - 2004
Event	2004 SAE World Congress - Detroit, MI, United States Duration: 8 Mar 2004 → 11 Mar 2004

Conference

Conference	2004 SAE World Congress
Country/Territory	United States
City	Detroit, MI
Period	8/03/04 → 11/03/04

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title = "A photoacoustic sensor system for time resolved quantification of diesel soot emissions",

abstract = "The reduction of particulate emissions limits requires new tools for the tuning of engines and exhaust aftertreatment systems. Time-resolved monitoring of low soot emissions is a key feature for such developments. The paper describes an improved photoacoustic soot sensor, and presents its applications for the characterization of transient exhaust soot emissions before and after Diesel emission after-treatment systems. The detection limit of the unit is around 5 μg/m3 soot, which is two orders of magnitude better than conventional time-resolved transmission measurement. Additionally, a wide dynamic range of four orders of magnitude can be achieved without range switching. The photoacoustic signal is proportional to the soot mass, no significant cross-sensitivities to gaseous absorbers were detected.",

author = "Wolfgang Schindler and Christoph Haisch and Beck, {Harald A.} and Reinhard Niessner and Eberhard Jacob and Dieter Rothe",

year = "2004",

doi = "10.4271/2004-01-0968",

language = "English",

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note = "2004 SAE World Congress ; Conference date: 08-03-2004 Through 11-03-2004",

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T1 - A photoacoustic sensor system for time resolved quantification of diesel soot emissions

AU - Schindler, Wolfgang

AU - Haisch, Christoph

AU - Beck, Harald A.

AU - Niessner, Reinhard

AU - Jacob, Eberhard

AU - Rothe, Dieter

PY - 2004

Y1 - 2004

N2 - The reduction of particulate emissions limits requires new tools for the tuning of engines and exhaust aftertreatment systems. Time-resolved monitoring of low soot emissions is a key feature for such developments. The paper describes an improved photoacoustic soot sensor, and presents its applications for the characterization of transient exhaust soot emissions before and after Diesel emission after-treatment systems. The detection limit of the unit is around 5 μg/m3 soot, which is two orders of magnitude better than conventional time-resolved transmission measurement. Additionally, a wide dynamic range of four orders of magnitude can be achieved without range switching. The photoacoustic signal is proportional to the soot mass, no significant cross-sensitivities to gaseous absorbers were detected.

AB - The reduction of particulate emissions limits requires new tools for the tuning of engines and exhaust aftertreatment systems. Time-resolved monitoring of low soot emissions is a key feature for such developments. The paper describes an improved photoacoustic soot sensor, and presents its applications for the characterization of transient exhaust soot emissions before and after Diesel emission after-treatment systems. The detection limit of the unit is around 5 μg/m3 soot, which is two orders of magnitude better than conventional time-resolved transmission measurement. Additionally, a wide dynamic range of four orders of magnitude can be achieved without range switching. The photoacoustic signal is proportional to the soot mass, no significant cross-sensitivities to gaseous absorbers were detected.

UR - http://www.scopus.com/inward/record.url?scp=85072436737&partnerID=8YFLogxK

U2 - 10.4271/2004-01-0968

DO - 10.4271/2004-01-0968

M3 - Conference contribution

AN - SCOPUS:85072436737

SN - 0768013194

SN - 9780768013191

BT - 2004 SAE World Congress

PB - SAE International

T2 - 2004 SAE World Congress

Y2 - 8 March 2004 through 11 March 2004

ER -

A photoacoustic sensor system for time resolved quantification of diesel soot emissions

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