Aim of this article is to evaluate cavity ringdown spectroscopy (CRDS) as a suitable technique for the measurement of particulate matter concentration in diesel exhaust. The second harmonic of a Nd:YAG laser was used for pulsed cavity ringdown measurements of the optical extinction of diesel particulate matter. The investigation was carried out at the exhaust of a single cylinder prototype engine, derived from the Euro IV version of FIAT 1.9 JTD M-Jet 16V. Several steady state test points were investigated, corresponding to low and medium load conditions in the European emission test schedule for light duty cars. Unconventional diesel combustion regimes, aimed to get lower flame temperatures and overcome the NOx -soot trade off, have been also investigated. Optical measurements have been compared against two commercial devices: a standard smoke meter (AVL 415S) was used to measure the Particulate Matter (PM) concentration, while a photoacoustic soot sensor (AVL 483 Micro Soot Sensor) was used to infer the corresponding carbonaceous fraction.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Measurement of diesel particulate matter concentration by means of cavity ringdown spectroscopy


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Avolio, G. (Autor:in) / Lazzaro, M. (Autor:in) / Del Giacomo, N. (Autor:in) / Moccia, V. (Autor:in)

    Kongress:

    8th International Conference on Engines for Automobiles ; 2007



    Erscheinungsdatum :

    2007-09-16




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Measurement of diesel particulate matter concentration by means of cavity ringdown spectroscopy

    Avolio,G. / Del Giacomo,N. / Lazzaro,M. et al. | Kraftfahrwesen | 2007


    Cavity ringdown spectroscopy for petrochemical process monitoring

    Vogler, D.E. / Wachter, H. / Sigrist, M.W. | IEEE | 2005


    Launch Cavity Ringdown Spectroscopy from Earth to Space

    Wang, C. / American Society of Civil Engineers | British Library Conference Proceedings | 2010



    Recent progress in cavity ringdown spectroscopy for ultrasensitive detection and quantitative measurement

    Lee, J. Y. / Kim, J. W. / Yoo, Y. S. et al. | British Library Conference Proceedings | 2003