Particle emissions from four spark ignition engines were measured during steady state and transient chassis dynamometer tests. Transient Unified Drive Cycle tests were conducted at 0 °C and room temperature. Particle number, size distribution, active surface area, and photoelectric activity were determined. The results generally show low emission values for steady state operation of the warm engine. High particle concentrations are emitted in the first phase of the high-speed steady state testing. Once the engine is warmed up high emissions mainly occur during transient operation phases. The formation of nucleation mode particles is favored by the low concentration of carbonaceous soot, which offers volatile material little surface area for condensation.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Particle Emissions from SI-Engines During Steady State and Transient Operating Conditions


    Additional title:

    Sae Technical Papers


    Contributors:

    Conference:

    Non-Conference Specific Technical Papers - 2005



    Publication date :

    2005-07-01




    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




    Measured Emissions of Small Engines under Steady State and Transient Operation

    Patterson, D. J. / Schwartz, G. / Brereton, G. J. et al. | SAE Technical Papers | 1994


    Measured emissions of small engines under steady state and transient operation

    Brereton,G.J. / Morrison,K. / Chishty,H.A. et al. | Automotive engineering | 1994


    Effects of Steady-State and Transient Operation on Exhaust Emissions from Nonroad and Highway Diesel Engines

    Jackson, Cleophas C. / Samulski, Michael J. | SAE Technical Papers | 1998


    Effects of steady-state and transient operation of exhaust emissions from nonroad and highway diesel engines

    Samulski,M.J. / Jackson,C.C. / Environmental Protection Agency,US | Automotive engineering | 1998


    Particulate emissions under transient operating conditions

    Treiber,P. / Kloeckner-Humboldt-Deutz,Koeln,DE | Automotive engineering | 1988