The effect of air/fuel ratio on the CO and NOx emissions for a twin-spark motorcycle gasoline engine under wide range of operating conditions

Deng, Banglin; Li, Qing; Chen, Yangyang; Li, Meng; Liu, Aodong; Ran, Jiaqi; Xu, Ying; Liu, Xiaoqiang; Fu, Jianqin; Ruan, Feng

doi:10.1016/j.energy.2018.12.113

Cited by 106 publications

(28 citation statements)

References 57 publications

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“…This is also consistent with various experimental and theoretical data given in the relevant books 4,21 and research articles 54‐56 . Moreover, NO x curves are similar to those which we have obtained for the same bidirectional combustor when burning other types of fuel: pulverized peat 57 and propane 15 …”

Section: Resultssupporting

confidence: 91%

Criterion analysis and experimental study of combustion mechanisms in a bidirectional swirling flow and their relationship with pollutants emission

Guryanov

Евдокимов

Guryanova

et al. 2020

Intl J of Energy Research

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Summary This paper reports on the theoretical and experimental studies of combustion in a bidirectional swirling flow to develop its criterion base. Based on considering known aero‐thermochemical similarity criteria, turbulent combustion numbers were calculated for the bidirectional vortex combustor for the first time. Theoretical assessment and experimental studies of the probability of the known combustion mechanisms' implementation in a limited bidirectional swirling flow, containing the secondary flows and separation phenomena, were performed. This gave us a possibility to provide the new correlation of combustion mechanisms with emission dependencies. A joint review of these data allowed us to establish that the greatest environmental efficiency is observed in the range of the air‐fuel equivalence ratio of 1.5 < λ < 1.9. At the same time, it was defined that stable combustion of liquid fuel in the bidirectional swirling flow is available up to the value λ = 22. Moreover, criterion equations for lean and rich limits of stable combustion were obtained.

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Section: Resultssupporting

confidence: 91%

Criterion analysis and experimental study of combustion mechanisms in a bidirectional swirling flow and their relationship with pollutants emission

Guryanov

Евдокимов

Guryanova

et al. 2020

Intl J of Energy Research

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“…It happens as a result of improving the gas quality when a gasifier works under optimum operation, that corresponds with the research [14]. It is necessary to mention that CO content in emissions from modern gasoline engines can reach 5% [16].…”

Section: Fig 4 Fuel Consumptionmentioning

confidence: 61%

Investigational study of environmental performance of power generator operating on generator gas

Kukharets¹,

Sukmaniuk²,

Yarosh³

et al. 2021

Engineering for Rural Development

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The analysis of scientific investigations makes it possible to make a conclusion about the usefulness of the generator gas as a fuel for internal combustion engines of mobile power generators. Under the conditions of agricultural production and in rural areas, the generator gas can be generated from biomass (wood, straw, corn stalks and other plant refuse). The paper recommends to use a gasifier of the reverse process for gas generation. The side of the recovery zone of the gasifier is 200 mm long, and the recovery zone is -70 mm high. The number of tuyere holes is 20, the diameter of the tuyere holes is 10 mm. The research was conducted in order to determine the effects of the produced generating capacity on generator gas and air consumption, as well as on emissions of greenhouse gases (CxHу and CО). The paper shows the nature of the effects of the produced generating capacity on generator gas and air consumption by the engine of a mobile power generator. As follows from the investigation, under the generating capacity, which corresponds to nominal electric generator charge, under the use of generator gas generated from wood CO emission is up to 25 times less, and CxHу emission is up to 9 times less as compared to gasoline fuel. While using the generator gas generated from straw, CO emission is up to 25 times less, and CxHу emission is up to 4 times less as compared to gasoline fuel. The paper also shows the results of the investigation as to the impact of the engine exhaust supply of a power generator engine into the combustion area of a gas generator on the power generator schedule, as well as on the dynamic pattern of the generated effective power.

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“…Figure 7a,b show that the variation of HC emissions is a parabola. Increasing the proportion of GS biodiesel, there is an increase in HC emissions, which is supported by [33]. However, there is a noticeable decline in HC emissions as the proportion of GS biodiesel exceeds 50%.…”

Section: • Hc Emissionsmentioning

confidence: 84%

A Study on Performance Evaluation of Biodiesel from Grape Seed Oil and Its Blends for Diesel Vehicles

Fadairo

2021

Vehicles

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With incessant increases in fuel prices worldwide and concerns for environmental pollution, the need for alternative sources of energy is becoming urgent. In this study, the potential of grape seed oil for biodiesel as an alternative fuel was evaluated. Refined grape seed oil was bought in liquid form and then subjected to an alkali-catalyzed transesterification process for biodiesel production. The physicochemical properties of the resulting biodiesel—namely, viscosity, cetane number, and heating value—were investigated. The biodiesel was blended with a conventional diesel in various proportions and combusted in a four-cylinder, four-stroke compression ignition (diesel) engine under two loading conditions. Experimental results revealed that the blend ratio of B70 (70% GS biodiesel and 30% conventional diesel) gave the best overall engine performance in terms of maximum power, minimum emissions, and fuel consumption. Furthermore, a novel neural network technique called extreme learning machine was adopted to investigate the optimal blend ratio using the dataset obtained from the experimental results. The results also indicate that the best choice of biodiesel blend ratio is approximately B73.67 (73.67% GS biodiesel and 26.33% conventional diesel). The study shows that grape seed oil could serve as a reliable source of production of quality biodiesel fuels, which could be used as an alternative to conventional diesel fuels.

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The effect of air/fuel ratio on the CO and NOx emissions for a twin-spark motorcycle gasoline engine under wide range of operating conditions

Cited by 106 publications

References 57 publications

Criterion analysis and experimental study of combustion mechanisms in a bidirectional swirling flow and their relationship with pollutants emission

Criterion analysis and experimental study of combustion mechanisms in a bidirectional swirling flow and their relationship with pollutants emission

Investigational study of environmental performance of power generator operating on generator gas

A Study on Performance Evaluation of Biodiesel from Grape Seed Oil and Its Blends for Diesel Vehicles

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