An experimental study of the flame propagation and combustion characteristics of LPG fuel

Lee, Kihyung; Ryu, Jea-Duk

doi:10.1016/j.fuel.2004.12.018

Cited by 66 publications

(27 citation statements)

References 4 publications

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“…Special attention is paid to alternative fuels such as LPG (Liquefied Petroleum Gas), LNG (Liquefied Natural gas) or their mixtures, considered cleaner fuels in comparison to diesel since they produce less NO x , CO and unburned hydrocarbons (Lee, Kusaka, & Daisho, 2003). Important flammability characteristics of LPG-air mixtures at standard initial temperature and pressure, such as the flammability limits, the peak explosion pressures and the normal burning velocities were reported especially for lean mixtures, as used in various burners or engines (Bayraktar & Durgun, 2005;Lee & Ryu, 2005;Liao, Jiang, Cheng, Gao, Huang, et al, 2005;Liao, Jiang, Gao, Huang, & Cheng, 2004). These data were recently completed with flammability characteristics of LPG-air mixtures with variable fuel/oxygen ratio, measured at elevated initial pressures and temperatures, in a cylindrical vessel (Huzayyin, Moneib, Shehatta, & Attia, 2008) and at ambient temperature and various initial pressures (0.3-1.3 bar) in two closed vessels (spherical and cylindrical) (Razus, Brinzea, Mitu, & Oancea, in press).…”

Section: Introductionmentioning

confidence: 99%

Inerting effect of the combustion products on the confined deflagration of liquefied petroleum gas–air mixtures

Razus

Brinzea

Mitu

et al. 2009

Journal of Loss Prevention in the Process Industries

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Section: Introductionmentioning

confidence: 99%

Inerting effect of the combustion products on the confined deflagration of liquefied petroleum gas–air mixtures

Razus

Brinzea

Mitu

et al. 2009

Journal of Loss Prevention in the Process Industries

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“…Generally, previous studies have assumed that the propagation of the spark-initiated oxidation is isotropic, i.e. spherical flame propagation [15,16,18,21,25,28,29,39,38,[30][31][32][33][34][35][36]. Only a few studies mentioned different flame-front geometries [14,15,30,39] and looked into implications arising from the assumption that the flame front surface had a spherical geometry.…”

Section: Visualisation Of Initial Flame Kernel Growth In Si Enginesmentioning

confidence: 99%

Assessment of elliptic flame front propagation characteristics of iso-octane, gasoline, M85 and E85 in an optical engine

Ihracska

Korakianitis

Ruiz

et al. 2014

Combustion and Flame

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a b s t r a c tPremixed fuel-air flame propagation is investigated in a single-cylinder, spark-ignited, four-stroke optical test engine using high-speed imaging. Circles and ellipses are fitted onto image projections of visible light emitted by the flames. The images are subsequently analysed to statistically evaluate: flame area; flame speed; centroid; perimeter; and various flame-shape descriptors. Results are presented for gasoline, isooctane, E85 and M85. The experiments were conducted at stoichiometric conditions for each fuel, at two engine speeds of 1200 rpm (rpm) and 1500 rpm, which are at 40% and 50% of rated engine speed. Furthermore, different fuel and speed sets were investigated under two compression ratios (CR: 5.00 and 8.14). Statistical tools were used to analyse the large number of data obtained, and it was found that flame speed distribution showed agreement with the normal distribution. Comparison of results assuming spherical and non-isotropic propagation of flames indicate non-isotropic flame propagation should be considered for the description of in-cylinder processes with higher accuracy. The high temporal resolution of the sequence of images allowed observation of the spark-ignition delay process. The results indicate that gasoline and isooctane have somewhat similar flame propagation behaviour. Additional differences between these fuels and E85 and M85 were also recorded and identified.

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“…LPG can be liquefied at low pressures, in the range 0.7-0.8 MPa, and low atmospheric temperatures. It has higher auto ignition temperature, greater flame velocity and wider flammability limits make LPG a better spark-ignition (S.I) engine fuel than gasoline [9].…”

Section: Introductionmentioning

confidence: 99%

Predicting the performances of a CAMPRO engine retrofitted with liquefied petroleum gas (LPG) system using 1-dimensional software

et al. 2016

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Abstract.Recently, the depletion of petroleum resources and the impact of exhaust emission caused by combustion towards environmental has been forced to all researchers to come out with an alternative ways to prevent this situation become worse. Liquefied petroleum gas (LPG) is the most compatible and have a potential to become a source of energy for internal combustion engine. Unfortunately, the investigation of LPG in internal combustion engine among researcher still have a gap in research. Thus, in this study a 1-Dimensional simulation CAMPRO 1.6L engine model using GT-Power is developed to predict the performances of engines that using LPG as a fuel for internal combustion engine. The constructed model simulation will throughout the validation process with the experimental data to make sure the precision of this model. The validation process shows that the results have a good agreement between the simulation model and the experimental data. As a result, the performance of LPG simulation model shows that a Brake Torque (BT), Brake Power (BP) and Brake Mean Effective Pressure (BMEP) were significantly improved in average of 7% in comparison with gasoline model. In addition, Brake Specific Fuel Consumption (BSFC) also shows an improvement by 5%, which is become more economic. Therefore, the developed GT-Power model offer a successful fuel conversion to LPG systems via retrofit technology to provide comprehensive support for implementation of energy efficient and environmental friendly vehicles.

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An experimental study of the flame propagation and combustion characteristics of LPG fuel

Cited by 66 publications

References 4 publications

Inerting effect of the combustion products on the confined deflagration of liquefied petroleum gas–air mixtures

Inerting effect of the combustion products on the confined deflagration of liquefied petroleum gas–air mixtures

Assessment of elliptic flame front propagation characteristics of iso-octane, gasoline, M85 and E85 in an optical engine

Predicting the performances of a CAMPRO engine retrofitted with liquefied petroleum gas (LPG) system using 1-dimensional software

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