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Alcohol fuel
About: Alcohol fuel is a research topic. Over the lifetime, 2030 publications have been published within this topic receiving 42757 citations.
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TL;DR: In this paper, the results in the physical characteristic of BOB as an alternative fuel and a comparative control experiences in unmodified diesel engine have been studied, including engine power performance, fuel consumption and emissions (CO 2, CO, HC and NO).
16 citations
TL;DR: In this paper, the effect of various percentages (0.2, 0.4%, and 0.6%) of the bio-additives on fuel economy of SI engine respectively running on prime gasoline, gasoline with known components, ethanol gasoline, and methanol gasoline under typical urban operation condition 2000 r/min was investigated.
Abstract: The matter extracted from palm oil was considered as gasoline additive. The effect of various percentages (0.2%, 0.4% and 0.6%) of the bio-additives on fuel economy of SI engine respectively running on prime gasoline, gasoline with known components, ethanol gasoline, and methanol gasoline under typical urban operation condition 2000 r/min was investigated. The results showed that the bio-additives can remarkably improve the fuel economy of SI engine while operating on all kinds of fuel. The optimal ratio of bio-additive to gasoline depends on the fuel used and on the different engine operating conditions. Besides, the experiments of constant volume combustion bomb, analysis of in cylinder processes, the synchrotron radiation and high-temperature friction were conducted to probe into the mechanism of the bio-additive impact on fuel economy. It indicated that the bio-additives can increase the maximum cylinder combustion pressure, improve exhaust emissions and largely reduce the frication coefficient.
16 citations
16 Oct 2000
16 citations
Book•
01 Jun 1997
TL;DR: In this article, the authors describe strategies, incentives, and methods to increase the use of clean fuels and focus on the abatement of vehicular pollution through use of cleaner fuels, such as unleaded gasoline and lower sulfur diesel.
Abstract: Expanding motor vehicle population is a major cause of air pollution in many Asian cities. This report describes strategies, incentives, and methods to increase the use of clean fuels and focuses on the abatement of vehicular pollution through the use of cleaner fuels, such as unleaded gasoline and lower sulfur diesel. It aims to provide decisionmakers with a methodology for making informed choices concerning the production and use of cleaner transport fuels for motor vehicles. Transport demand management, inspection and maintenance, and advancement of vehicle technology are the other components of vehicle pollution prevention program. This report recommends that governments adopt a strategy for the progressive elimination of lead from gasoline. In conjunction with catalytic converters, unleaded gasoline use results in reductions in major pollutants such as hydrocarbons, carbon monoxide, and nitrogen oxides. Unleaded gasoline should be made cheaper than leaded gasoline at the pump. In addition to this priority step, it is also crucial that other clean fuels be promoted. For example, the sulfur content of diesel fuel should be reduced to control emissions of sulfur and particulates. Alternative clean fuels such as natural gas and liquefied petroleum gas should also be promoted. Poorly maintained cars are responsible for a disproportionate amount of emissions. Regular inspection and maintenance of vehicles results in a substantial reduction in particulate, volatile organic compounds, and carbon monoxide emissions.
16 citations
TL;DR: In this article, a single cylinder research engine with diesel and ethanol fuels was evaluated with direct injection and a combination of diesel direct injection with ethanol port injection and port injection with one or two fuels.
Abstract: Suitable cylinder charge preparation is deemed critical for the attainment of a highly homogeneous, diluted, and lean cylinder charge which is shown to lower the flame temperature. The resultant low temperature combustion (LTC) can simultaneously reduce the NOx and soot emissions from diesel engines. This requires sophisticated coordination of multiple control systems for controlling the intake boost, exhaust gas recirculation (EGR), and fueling events. Additionally, the cylinder charge modulation becomes more complicated in the novel combustion concepts that apply port injection of low reactivity alcohol fuels to replace the diesel fuel partially or entirely. In this work, experiments have been conducted on a single cylinder research engine with diesel and ethanol fuels. The test platform is capable of independently controlling the intake boost, EGR rates, and fuelling events. Effects of these control variables are evaluated with diesel direct injection and a combination of diesel direct injection and ethanol port injection. Data analyses are performed to establish the control requirements for stable operation at different engine load levels with the use of one or two fuels. The sensitivity of the combustion modes is thereby analyzed with regard to the boost, EGR, fuel types and fueling strategies. Zero-dimensional cycle simulations have been conducted in parallel with the experiments to evaluate the operating requirements and operation zones of the LTC combustion modes. Correlations are generated between air-fuel ratio (λ), EGR rate, boost level, in-cylinder oxygen concentration and load level using the experimental data and simulation results. Development of a real-time boost-EGR set-point determination to sustain the LTC mode at the varying engine load levels and fueling strategies is proposed.Copyright © 2013 by ASME
16 citations