Electrical filter stage for the ELPI

Marko Marjamäki; Leonidas Ntziachristos; Annele Virtanen; Jyrki Ristimäki; Jorma Keskinen; Mikko Moisio; Marko Palonen; Maija Lappi

doi:10.4271/2002-01-0055

Electrical filter stage for the ELPI

Marko Marjamäki, Leonidas Ntziachristos, Annele Virtanen, Jyrki Ristimäki, Jorma Keskinen, Mikko Moisio, Marko Palonen, Maija Lappi

VTT Technical Research Centre of Finland

Research output: Contribution to journal › Article › Professional

58 Citations (Scopus)

Abstract

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.

Original language	English
Number of pages	7
Journal	SAE Technical Paper Series
Issue number	2002-01-0055
DOIs	https://doi.org/10.4271/2002-01-0055
Publication status	Published - 2002
MoE publication type	D1 Article in a trade journal

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10.4271/2002-01-0055

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title = "Electrical filter stage for the ELPI",

abstract = "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.",

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AU - Marjamäki, Marko

AU - Ntziachristos, Leonidas

AU - Virtanen, Annele

AU - Ristimäki, Jyrki

AU - Keskinen, Jorma

AU - Moisio, Mikko

AU - Palonen, Marko

AU - Lappi, Maija

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

U2 - 10.4271/2002-01-0055

DO - 10.4271/2002-01-0055

M3 - Article

SN - 0148-7191

JO - SAE Technical Paper Series

JF - SAE Technical Paper Series

IS - 2002-01-0055

ER -

Electrical filter stage for the ELPI

Abstract

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