WO2009115682A3 - Method and device for measuring the opacity level of exhaust gases from a diesel engine - Google Patents

Method and device for measuring the opacity level of exhaust gases from a diesel engine Download PDF

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Publication number
WO2009115682A3
WO2009115682A3 PCT/FR2009/000176 FR2009000176W WO2009115682A3 WO 2009115682 A3 WO2009115682 A3 WO 2009115682A3 FR 2009000176 W FR2009000176 W FR 2009000176W WO 2009115682 A3 WO2009115682 A3 WO 2009115682A3
Authority
WO
WIPO (PCT)
Prior art keywords
gases
exhaust gases
measuring
opacity level
light intensity
Prior art date
Application number
PCT/FR2009/000176
Other languages
French (fr)
Other versions
WO2009115682A2 (en
Inventor
Thierry Lepage
Original Assignee
Ifp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ifp filed Critical Ifp
Publication of WO2009115682A2 publication Critical patent/WO2009115682A2/en
Publication of WO2009115682A3 publication Critical patent/WO2009115682A3/en

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M15/00—Testing of engines
    • G01M15/04—Testing internal-combustion engines
    • G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
    • G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
    • G01M15/108—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using optical methods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis

Abstract

The invention relates to a method and a device for measuring the opacity level of exhaust gases from a diesel engine, wherein the method comprises using an opacimeter for collecting the exhaust gases, emitting a light beam through the collected gases, and acquiring a signal relative to the light intensity of the light beams that passed through the gases. The method further comprises extracting from the signal a first light intensity measurement during an engine acceleration phase, and extracting from the signal a second light intensity measurement during an engine idle phase. The two measurements are sufficiently close in time to provide equivalent measurement conditions. Finally, the method comprises deriving, from said measures and by a relative opacity calculation, the opacity level of the gases by calculating the gas absorption coefficient during the acceleration phase.
PCT/FR2009/000176 2008-02-21 2009-02-17 Method and device for measuring the opacity level of exhaust gases from a diesel engine WO2009115682A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0800981 2008-02-21
FR0800981A FR2928000B1 (en) 2008-02-21 2008-02-21 METHOD AND DEVICE FOR MEASURING THE OPERATING LEVEL OF EXHAUST GAS EMITTED BY A DIESEL ENGINE

Publications (2)

Publication Number Publication Date
WO2009115682A2 WO2009115682A2 (en) 2009-09-24
WO2009115682A3 true WO2009115682A3 (en) 2009-12-30

Family

ID=39865663

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR2009/000176 WO2009115682A2 (en) 2008-02-21 2009-02-17 Method and device for measuring the opacity level of exhaust gases from a diesel engine

Country Status (2)

Country Link
FR (1) FR2928000B1 (en)
WO (1) WO2009115682A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3005738B1 (en) * 2013-05-14 2016-02-05 Capelec OPACIMETER FOR DETECTION OF LOW LEVELS OF POLLUTANTS IN AN EXHAUST GAS
AT517420B1 (en) * 2015-06-22 2017-08-15 Avl Ditest Gmbh Measuring device and measuring method for drift monitoring of optical systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908167A (en) * 1974-06-05 1975-09-23 Rca Corp Exhaust-responsive engine speed and condition indicator
US3958122A (en) * 1974-12-19 1976-05-18 United Technologies Corporation Exhaust gas analyzer having pressure and temperature compensation
US4066364A (en) * 1975-04-29 1978-01-03 Leslie Hartridge Limited Apparatus for measuring smoke density
EP0539202A2 (en) * 1991-10-22 1993-04-28 Gec-Marconi Limited Exhaust gas particle sensor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3908167A (en) * 1974-06-05 1975-09-23 Rca Corp Exhaust-responsive engine speed and condition indicator
US3958122A (en) * 1974-12-19 1976-05-18 United Technologies Corporation Exhaust gas analyzer having pressure and temperature compensation
US4066364A (en) * 1975-04-29 1978-01-03 Leslie Hartridge Limited Apparatus for measuring smoke density
EP0539202A2 (en) * 1991-10-22 1993-04-28 Gec-Marconi Limited Exhaust gas particle sensor

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
ARREGLE ET AL: "Procedure for engine transient cycle emissions testing in real time", EXPERIMENTAL THERMAL AND FLUID SCIENCE, ELSEVIER SCIENCE INC, NEW YORK, US, vol. 30, no. 5, 1 May 2006 (2006-05-01), pages 485 - 496, XP005422774, ISSN: 0894-1777 *
HUAI T ET AL: "Investigation of NH3 Emissions from New Technology Vehicles as a Function of Vehicle Operating Conditions", ENVIRONMENTAL SCIENCE AND TECHNOLOGY 20031101 AMERICAN CHEMICAL SOCIETY US, vol. 37, no. 21, 1 November 2003 (2003-11-01), pages 4841 - 4847, XP002501543 *
VATTULAINEN J ET AL: "Fast exhaust channel optical absorption method and apparatus to study the gas exchange in large diesel engines", REVIEW OF SCIENTIFIC INSTRUMENTS, AIP, MELVILLE, NY, US, vol. 69, no. 1, 1 January 1998 (1998-01-01), pages 277 - 285, XP012036023, ISSN: 0034-6748 *

Also Published As

Publication number Publication date
WO2009115682A2 (en) 2009-09-24
FR2928000B1 (en) 2010-02-26
FR2928000A1 (en) 2009-08-28

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