2002-01-0055: Electrical Filter Stage for the ELPI - Technical Paper

Event: SAE 2002 World Congress & Exhibition

Authors

Marko Marjamäki

Tampere University of Technology. Institute of Physics

Leonidas Ntziachristos

Tampere University of Technology. Institute of Physics

Annele Virtanen

Tampere University of Technology. Institute of Physics

Jyrki Ristimäki

Tampere University of Technology. Institute of Physics

Tampere University of Technology. Institute of Physics

VTT Energy, Engine Technology

Abstract

Content: Electrical low pressure impactor ELPI was modified to measure particles below 30 nanometers in aerodynamic diameter. This was accomplished by adding a filter stage to collect and measure nanoparticles. The charging unit of the instrument was modified to increase the charging efficiency of the smallest, nanometer sized, particles. The modified charging unit was calibrated and the new construction of the ELPI was tested in laboratory and in vehicle dynamometer test cell. Measurements performed in the engine test cell showed that modifications improve the size range and measurement capability of the ELPI for engine emissions.

Meta Tags

Topics: Particulate matter (PM)
Exhaust emissions
Test facilities
Pressure
Aerodynamics

Affiliated or Co-Author: Tampere University of Technology. Institute of Physics
Dekati Ltd.
VTT Energy, Engine Technology

Details

DOI: https://doi.org/10.4271/2002-01-0055

Pages: 7

Citation: Marjamäki, M., Ntziachristos, L., Virtanen, A., Ristimäki, J. et al., "Electrical Filter Stage for the ELPI," SAE Technical Paper 2002-01-0055, 2002, https://doi.org/10.4271/2002-01-0055.

Additional Details

Publisher: SAE International

Published: Mar 4, 2002

Product Code: 2002-01-0055

Content Type: Technical Paper

Language: English