Effect of Gas Composition on Octane Number of Natural Gas Fuels

Kubesh, John T.; King, Steven R.; Liss, William E.

doi:10.4271/922359

Cited by 91 publications

(43 citation statements)

References 2 publications

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“…A similar result was obtained by another group that observed a power variation of up to 20% and a change in emission characteristics with diverse fuel composition [7]. Kubesh et al (1992) emphasized that a change in octane number resulting from a change in fuel composition had a critical influence on vehicle driving conditions near knock-limited power, and they developed a correlation between the octane number and gas composition [2]. In contrast, a study performed with two extremely different compositions chosen among twelve CNGs in Texas found that the CNG composition had a negligible impact on emission characteristics [8].…”

Section: Introductionsupporting

confidence: 71%

“…It has a high octane number of 130, which enables an engine to operate with little knocking at a high compression ratio. In addition, gasoline and diesel engines can be easily converted into CNG engines without major structural changes [2]. Not only does the CNG engine have good thermal efficiency and high power, but its combustion range is also broad.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Natural Gas Composition on the Performance of a CNG Engine

Kim

et al. 2008

Oil & Gas Science and Technology - Rev. IFP

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Résumé -Effet de la composition du gaz naturel sur les performances d'un moteur GNCLe Gaz Naturel Comprimé (GNC) est considéré comme un carburant pour véhicule alternatif en raison de ses avantages économiques et environnementaux. Cependant, il est prouvé que la composition variable des gaz naturels produits dans diverses régions du monde affecte les performances et les taux d'émissions des moteurs GNC. Ainsi, l'objectif de cet essai est de corroborer l'effet de la composition du carburant sur la combustion et sur le taux d'émissions des moteurs GNC. Cet essai présente les caractéristiques de combustion globales obtenues en faisant fonctionner un moteur GNC de 2,5 L de quatre cylindres, posé en deuxième monte sur la base d'un moteur diesel à injection directe et équipé d'un dynamomètre. La puissance du moteur, la consommation de carburant spécifique au freinage, la pression de combustion et les émissions ont été mesurées dans des conditions de fonctionnement constantes en pleine charge et en charge partielle. Les résultats de l'expérience ont montré que la composition du GNC a un impact considérable sur les performances du moteur, sur la consommation de carburant et sur la vitesse de combustion. Une corrélation a été suggérée pour mieux comprendre la relation qui existe entre l'indice de Wobbe (IW) et la puissance du moteur. Elle propose une méthode pratique pour estimer la puissance du moteur lorsque la composition des gaz naturels varie. Abstract -Effect of Natural Gas Composition on the Performance of a CNG Engine -Compressed Natural Gas (CNG) is considered an alternative vehicle fuel because of its economical and environmental advantages. However, the varying composition of natural gases produced in different parts of the world is known to affect the performance and emissions of CNG engines. Thus

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Section: Introductionsupporting

confidence: 71%

Section: Introductionmentioning

confidence: 99%

Effect of Natural Gas Composition on the Performance of a CNG Engine

Kim

et al. 2008

Oil & Gas Science and Technology - Rev. IFP

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show abstract

“…It has a high octane number of 130, which enables an engine to operate with little knocking at a high compression ratio. In addition, gasoline and diesel engines can be easily converted into CNG engines without major structural changes [31]. Not only does the CNG engine have good thermal efficiency and high power, but its combustion range is also broad.…”

Section: Methane Specificationsmentioning

confidence: 99%

Use of Hydrogen-Methane Blends in Internal Combustion Engines

Çeper¹

2012

Hydrogen Energy - Challenges and Perspectives

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“…Among them, natural gas (NG) is one of the most widely used alternative fuels for automobiles and has long been considered as a promising alternative fuel due to its favorable chemical characteristics, such as: high H/C ratio, large octane number, and especially its low emissions [1][2][3]. Methane CH 4 as an environmental-friendly fuel and the main component of NG produces less carbon dioxide for each unit of heat released, but more heat per mass unit than other complex hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Explosion behavior of methane–dimethyl ether/air mixtures

Zhang

2015

Fuel

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Effect of Gas Composition on Octane Number of Natural Gas Fuels

Cited by 91 publications

References 2 publications

Effect of Natural Gas Composition on the Performance of a CNG Engine

Effect of Natural Gas Composition on the Performance of a CNG Engine

Use of Hydrogen-Methane Blends in Internal Combustion Engines

Explosion behavior of methane–dimethyl ether/air mixtures

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