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Optical Multiwavelength Technique Applied to the Online Measurement of Particle Emissions from Engines

  • The importance of obtaining simultaneous particle size and concentration values has grown up with continuing discussion of the health effects, of internal combustion engine generated particulate emissions and in particular of Diesel soot emissions. In the present work an aerosol measurement system is described that delivers information about particle size and concentration directly from theThe importance of obtaining simultaneous particle size and concentration values has grown up with continuing discussion of the health effects, of internal combustion engine generated particulate emissions and in particular of Diesel soot emissions. In the present work an aerosol measurement system is described that delivers information about particle size and concentration directly from the undiluted exhaust gas. Using three laser diodes of different wavelengths which form one parallel light beam, each spectral attenuation is analysed by a single detector and the particle diameter and concentration is evaluated by the use of the Mie theory and shown on-line at a frequency of 1 Hz. The system includes an optical long-path-cell (White principle) with an adjustable path length from 2.5 to 15 m, which allows the analysis within a broad concentration range. On-line measurements of the particulate emissions in the hot, undiluted exhaust of Diesel engines are presented under stationary and transient engine’s load conditions. Mean particle diameters well below 100 nm are detected for modern Diesel engines. The measured particle concentration corresponds excellently with the traditional gravimetrical measurements of the diluted exhaust. Additionally, measurements of particle emissions (mostly condensed hydricarbons) from a two-stroke engine are presented and discussed.show moreshow less

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Metadaten
Document Type:Conference Proceeding
Conference Type:Konferenzartikel
Zitierlink: https://opus.hs-offenburg.de/3480
Bibliografische Angaben
Title (English):Optical Multiwavelength Technique Applied to the Online Measurement of Particle Emissions from Engines
Conference:International Conference on Internal Combustion Engines (5. : September 23-27, 2001 : Capri, Italy)
Author:Richard A. ZahoranskyStaff MemberGND, T. Saier, Edgar Laile, Michail S. Nikitidis, Athanasios G. Konstandopoulos
Year of Publication:2001
Publisher:SAE
Page Number:5
Parent Title (English):SAE: Technical Papers
Volume:2001
Issue:September
ISSN:2688-3627
DOI:https://doi.org/10.4271/2001-24-0074
Language:English
Inhaltliche Informationen
Institutes:Fakultät Elektrotechnik und Informationstechnik (E+I) (bis 03/2019)
Institutes:Bibliografie
GND Keyword:Emission; Messtechnik; Mikrowellentechnik; Partikel
Formale Angaben
Open Access: Closed Access 
Licence (German):License LogoUrheberrechtlich geschützt
Comment:
Technical Paper