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Titre du document / Document title

Injection of hydrogen peroxide into the combustion chamber of diesel engine : Effects on the exhaust gas behaviour

Auteur(s) / Author(s)

TRAPEL Frica (1) ; IFEACHO Pascal (1) ; ROTH Paul (1) ;

Affiliation(s) du ou des auteurs / Author(s) Affiliation(s)

(1) University of Duisburg-Essen, ALLEMAGNE

Résumé / Abstract

The improvement of the exhaust gas contents of diesel engines with respect to particles and gaseous emissions is still a very important engineering topic. In this work two different direct injection methods into the combustion chamber of a diesel engine have been investigated and compared. The first system involves the separate injection of H2O2/water solutions using a second nozzle, while the other is the injection of H2O2/water/diesel emulsions by a single injection system. It is known that H2O2 forms OH radicals at higher temperatures, whose probability for the oxidation of diesel soot is much higher than that of molecular oxygen [1]. The H2O2 injection into the combustion chamber [2] and the exhaust pipe of diesel engines [3] has proved to be an effective measure towards the reduction of diesel soot. A Differential Mobility Analyzer (DMA) is applied to detect the change in particle diameter as function of H2O2/water addition. The injected H2O2 concentration in relation to injected diesel fuel was varied from 1 to 10 %, and the injection pressure was also varied between 200 and 500 bars. By constant injection pressure and injection timing, it was found that H2O2/water/diesel emulsion leads to a higher reduction of unburned hydrocarbons and particulates. Correspondingly, an increase in the NOx emission is observed in comparison to separate injection of H2O2/water solution. The highest reduction of diesel particles was observed at higher injection pressures, and during delay injection timing of H2O2/water.

Revue / Journal Title

SAE transactions    ISSN  0096-736X 

Source / Source

2004, vol. 113, no 4 (2217 p.)  [Document : 5 p.] (6 ref.), pp. 1744-1748 [5 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Society of Automotive Engineers, New York, NY, ETATS-UNIS  (1927-200) (Revue)

Mots-clés anglais / English Keywords

Direct injection

;

Probabilistic approach

;

Direct method

;

Gas engine

;

Exhaust gas

;

Engine exhaust

;

Diesel engine

;

Internal combustion engine

;

Combustion chamber

;

Hydrogen peroxide

;

Air pollution

;

Pollutant emission

;

Unburned product

;

Diesel fuel

;

Mobility

;

Muffler

;

Soot

;

Emulsion

;

Motor fuel injection

;

Water injection

;

Particle emission

;

Mots-clés français / French Keywords

Injection directe

;

Approche probabiliste

;

Méthode directe

;

Moteur gaz

;

Gaz échappement

;

Echappement moteur

;

Moteur diesel

;

Moteur combustion interne

;

Chambre combustion

;

Hydrogène peroxyde

;

Pollution air

;

Emission polluant

;

Imbrûlé

;

Carburant diesel

;

Mobilité

;

Pot échappement

;

Suie

;

Emulsion

;

Injection carburant

;

Injection eau

;

Emission particule

;

Mots-clés espagnols / Spanish Keywords

Inyección directa

;

Enfoque probabilista

;

Método directo

;

Motor gas

;

Gas escape

;

Escape motor

;

Motor diesel

;

Motor explosión interna

;

Cámara combustión

;

Peróxido de hydrogeno

;

Contaminación aire

;

Emisión contaminante

;

No quemada producto

;

Carburante diesel

;

Movilidad

;

Silencioso

;

Hollín

;

Emulsión

;

Inyección carburante

;

Inyección agua

;

Emisión partícula

;

Localisation / Location

INIST-CNRS, Cote INIST : 5876, 35400013224531.1520

Nº notice refdoc (ud4) : 16973550



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