Investigating the effects of LPG on spark ignition engine combustion and performance

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

“…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).…”

An Experimental Study on the Performance and Emission Assessment of a Hydrogen/Diesel Fueled Engine

“…These include the growing concern of available worldwide resources of crude oil and fossil fuels, the fast expanding consumption of crude oil by developing industrial countries as well as the increase in demand due to industrial expanding within Saudi Arabia, and the associated increase of atmospheric CO 2 levels and its effect on global warming. With both economical and environmental concerns, the search for alternate fuels has gained widespread interest (Bayraktar and Durgun, 2005;Szwajaa et al, 2007).…”

Optimal Matching of the Turbocharging Lean Burn LPG Engine

“…Combustion chamber was made for different compression ratios and bowl diameters to investigate the impact of compression ratio and combustion chamber shape on the combustion and performance of the LPG engine. In-Cylinder air motion plays an important role on the ignition and combustion process of LPG engine, so a mature standard K-ε turbulence model is used in this paper [3]. The mixture fired by sparkplug in LPG engine, so a model of spark ignition in the AVL-FIRE was used.…”