MMT Effects on Gasoline Vehicles: A Literature Review

Hoekman, S. Kent; Broch, Amber

doi:10.4271/2016-01-9073

Cited by 9 publications

(1 citation statement)

References 67 publications

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“…With the extensive applications of an internal combustion engine (ICE), fuel resources are depleted and the atmospheric environment is becoming terrible. − To solve the problems of the energy dilemma and environmental deterioration, various countries in the world have introduced a series of policies to restrict exhaust emissions and fuel consumption in succession . Under this circumstance, engine technology and fuel property have made great progress in recent decades. − Advanced engine technologies, such as gasoline-direct-injection (GDI) and turbocharging, have been widely applied to practical productions. − In addition, the studies about new combustion models have gained many breakthroughs, just like stratified charge spark ignition (SCSI), homogeneous charge spark ignition (HCSI), and homogeneous charge compression ignition (HCCI). , However, to maximize the advantages of advanced engine technologies, it is necessary to optimize gasoline composition and improve the quality of gasoline. In this way, the fuels could be combined with advanced engine technologies to meet the rigorous emissions and fuel consumption legislations.…”

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confidence: 99%

Compositional Effect of Gasoline on Fuel Economy and Emissions

Han

Sun

et al. 2018

Energy Fuels

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In the paper, fuel economy and emissions of a port-fuel-injection engine fueled with four gasoline were experimentally investigated to verify the validity and universality of the conclusions from the previous experiment conducted in a gasoline-direct-injection engine. On the basis of the previous results, which showed that aromatics and short-chain alkanes were beneficial to improving fuel economy and that oxygenated fuels could reduce emissions to some extent, commercial gasoline with a research number of 92 and three customized gasoline with different aromatic, short-chain alkane, and oxygen contents were chosen to conduct comparative tests in a wide range of working speeds (1000−3600 rpm) without any modification on the engine systems. Results show that aromatics do have great advantages on fuel economy under all operating conditions, while the mean fuel-saving ratio (FSR) of gasoline F with the highest aromatic content could reach 5.25% under stable operating conditions. Moreover, short-chain alkanes show good superiority of saving fuel consumption at light and medium loads of medium speeds, while the mean FSR of gasoline L with a higher short-chain alkane content is 3.55%. With regard to oxygenated fuels, gasoline E with a higher oxygen content, in which methyl tertiary butyl ether is used as an oxygen additive, shows good capability of balancing fuel consumption and emissions. Therefore, it has been proven that the previous results are valid and that the practical impacts on the performances of main engines applied in the markets are in accordance with the expectations.

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