Measurement of exhaust emissions of railroad locomotives during real-world operation using an on-board system

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Measurement of exhaust emissions of railroad locomotives during real-world operation using an on-board system

Popis výsledku v původním jazyce

Exhaust emissions were measured on a Czech Railways 749 series diesel-electric locomotive. On-track NOx, PM, CO and CO2 emissions were measured by a portable, on-board system, placed in the engine room of the locomotive, and sampling undiluted exhaust from the stack. PM emissions were measured online by a semi-condensing integrating nephelometer, calibrated by simultaneous gravimetric measurement during steady-state operation. The test was successful and demonstrated the feasibility of the approach chosen. The operation of the engine was very different than during traditional load bank tests, and consisted of interleaved periods of idle and higher load, defined by train mass and track profile (posted speed and track grade), and relatively quick progression through lower power settings. Transient emissions during load increases, and PM deposition at idle and reentrainment at higher load are important factors that should be considered in locomotive emissions tests.

Název v anglickém jazyce

Measurement of exhaust emissions of railroad locomotives during real-world operation using an on-board system

Popis výsledku anglicky

Exhaust emissions were measured on a Czech Railways 749 series diesel-electric locomotive. On-track NOx, PM, CO and CO2 emissions were measured by a portable, on-board system, placed in the engine room of the locomotive, and sampling undiluted exhaust from the stack. PM emissions were measured online by a semi-condensing integrating nephelometer, calibrated by simultaneous gravimetric measurement during steady-state operation. The test was successful and demonstrated the feasibility of the approach chosen. The operation of the engine was very different than during traditional load bank tests, and consisted of interleaved periods of idle and higher load, defined by train mass and track profile (posted speed and track grade), and relatively quick progression through lower power settings. Transient emissions during load increases, and PM deposition at idle and reentrainment at higher load are important factors that should be considered in locomotive emissions tests.

Druh

D - Stať ve sborníku

CEP obor

JB - Senzory, čidla, měření a regulace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2010

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

14th ETH Conference on Combustion Generated Nanoparticles

ISBN

978-3-033-02531-8

ISSN

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e-ISSN

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Počet stran výsledku

10

Strana od-do

110-119

Název nakladatele

ETH

Místo vydání

Zürich

Místo konání akce

Zürich

Datum konání akce

2. 8. 2010

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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