Alcohol fuel

About: Alcohol fuel is a research topic. Over the lifetime, 2030 publications have been published within this topic receiving 42757 citations.

Effects of physicochemical properties of biodiesel fuel blends with alcohol on diesel engine performance and exhaust emissions: A review

Abstract: In recent years, alternative fuel studies have been conducted thoroughly by researchers through their experimental work Depletion of fossil fuel raised the attention of researchers to investigate renewable energy sources such as biodiesel and alcohol There is a lack of literature review study on the viability of alcohol acting as additive in biodiesel-diesel fuel blends Thus, this review paper studies on the effects of various alcohol additives in biodiesel-diesel fuel blends on combustion behaviour, performance and emission characteristics of diesel engines The physicochemical properties of alcohol and biodiesel are rigorously discussed, in which they are the main factors in determining the quality of the blended fuel The aim of this paper is to identify the potential of alcohol fuel as an additive in the blended biodiesel and diesel fuel in correspond to the type of alcohol, blending ratio and engine operation conditions Wide range of results from previous research studies with different types of compression-ignition engine, different engine operation conditions and varieties of alcohol-biodiesel-diesel fuel blending ratios were collected in this literature review study Combustion behaviour such as coefficient of variations (COV), in-cylinder pressure, ignition delay, heat release rate and combustion duration are presented Low cetane number and high latent heat of vaporization of alcohol cause a longer ignition delay, produce higher rate of heat release and lower in-cylinder pressure when compared with that of diesel fuel Low density and viscosity of alcohol improve the spray characteristics and enhance air-fuel mixing process In terms of engine performance analysis, the presence of oxygen in alcohol fuel promotes a more complete combustion; hence, resulting in an increase of thermal efficiency In turn, emissions of carbon monoxide (CO), hydrocarbon (HC) and particulate matter (PM) are decreasing

Emission of alcohols and carbonyl compounds from a spark ignition engine. Influence of fuel and air/fuel equivalence ratio.

Abstract: A spark ignition engine was used to study the impact of fuel composition and of the air/fuel equivalence (λ) ratio on exhaust emissions of alcohols and aldehydes/ketones. Fuel blends contained eigh...

Performance and emissions characteristics of biodiesel from soybean oil

Abstract: Biodiesel is an alternative diesel fuel that can be produced from renewable feedstocks such as vegetable oils, waste frying oils, and animal fats It is an oxygenated, non-toxic, sulphur-free, biodegradable, and renewable fuel Many engine manufacturers have included this fuel in their warranties since it can be used in diesel engines without significant modification However, the fuel properties such as cetane number, heat of combustion, specific gravity, and kinematic viscosity affect the combustion, engine performance and emission characteristics In this study, the engine performance and emissions characteristics of two different petroleum diesel fuels (No 1 and No 2 diesel fuels) and biodiesel from soybean oil and its 20 per cent blends with No 2 diesel fuel were compared The results showed that the engine performance of the neat biodiesel and its blend was similar to that of No 2 diesel fuel with nearly the same brake fuel conversion efficiency, and slightly higher fuel consumption CO2 emissio

Emission characteristics of diesel engine running on vegetable oil with elevated fuel inlet temperature

Abstract: The world energy demand has, for the last two decades, witnessed uncertainties in two dimensions. Firstly, the price of conventional fossil fuel is too high and has added burden on the economy of the importing nations. Secondly, combustion of fossil fuels is the main culprit in increasing the global carbon dioxide (CO2) level, a consequence of global warming. The scarcity and depletion of conventional sources are also cases of concern and have prompted research world-wide into alternative energy sources for internal combustion engines. Biofuels appear to be a potential alternative “greener” energy substitute for fossil fuels. The problem of using neat vegetable oils in diesel engines relates to their high viscosity. Experiments were designed to study the effect of reducing viscosity by increasing the inlet temperature of vegetable oil fuel on combustion and emission characteristics of diesel engine. The test results showed that the CO production with heated fuel is a little higher than the diesel fuel at higher loading conditions. The CO concentrations in the exhaust were higher for unheated oil operation compared to other fuels. The heated oil showed marginal increase in CO2 emissions compared to diesel fuel. The hydrocarbon emissions were significantly reduced when running on plant oils. The fuel consumption was a little worse when running on plant fuel. The ignition delay was longer for unheated plant fuel operation.