Journal ArticleDOI
Experimental Characterization of Combustion Behaviour of New Diesel Fuels for Low Emission Engines
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In this article, some oxygenated hydrocarbons were tested as pure fuels in two different DI diesel engines, and their emission potential was compared to n-tetradecane combustion.Abstract:
Some oxygenated hydrocarbons were tested as pure fuels in two different DI diesel engines, and their emission potential was compared to n-tetradecane combustion. Two colours pyrometry method was used to infer in-cylinder sooting tendency of tested fuels. Pure pyrolysis of the same fuels was also investigated in a conventional shock lube at high temperature (1700–2500 K) and pressure (9–13 bar), using light scattering/extinction methods. All oxygenated compounds tested in the engines exhibited a strong decrease of soot loading compared with tetradecane combustion. The long soot induction times, as measured in shock tube experiments, and the oxygen content of the fuel molecules seem to provide a plausible explanation of soot lacking in oxygenated fuels combustion. Emission measurements at the exhaust of a four cylinder engine fully confirm the trends obtained by two colours pyrometry and shock tube experiments. As a matter of fact, the oxygenated synthetic fuels strongly reduce both gaseous and total partic...read more
Citations
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Journal ArticleDOI
Soot processes in compression ignition engines
Dale R. Tree,Kenth I. Svensson +1 more
TL;DR: In this paper, a conceptual model based on in-cylinder soot and combustion measurements was used to explain the trends seen in exhaust particulate emissions and showed that diesel engine emissions control involves multi-injection combustion strategies which are transforming the picture of diesel combustion rapidly into a series of low temperature, stratified charge, premixed combustion events where NO x formation is avoided by leaning the mixture or increasing air entrainment prior to ignition.
Journal ArticleDOI
Effects of soybean biodiesel on a DI diesel engine performance, emission and combustion characteristics
TL;DR: In this article, the combustion, performance and emission characteristics of conventional diesel fuel and biodiesel produced from soybean oil and its blends (B10, B20, B50) were compared.
Journal ArticleDOI
Performance and combustion characteristics of a di diesel engine fueled with waste palm oil and canola oil methyl esters
TL;DR: In this paper, the performance and combustion characteristics of a direct injection (DI) diesel engine fueled with biodiesels such as waste (frying) palm oil methyl ester (WPOME) and canola oils methyl esters (COME) were analyzed.
Journal ArticleDOI
The impact of fuel injection pressure on the exhaust emissions of a direct injection diesel engine fueled with biodiesel–diesel fuel blends
TL;DR: In this paper, the effects of fuel injection pressure on the exhaust emissions and brake specific fuel consumption (BSFC) of a direct injection (DI) diesel engine have been discussed, and the results confirmed that the BSFC, carbon dioxide (CO2), nitrogen oxides (NOx) and oxygen (O2) emission increased, smoke opacity, unburned hydrocarbon (UHC) and carbon monoxide (CO) emissions decreased due to the fuel properties and combustion characteristics of biodiesel.
Journal ArticleDOI
Prediction of performance and exhaust emissions of a diesel engine fueled with biodiesel produced from waste frying palm oil
TL;DR: Using the artificial neural network (ANN) model, the performance and exhaust emissions of a diesel engine have been predicted for biodiesel blends and according to the results, the fifth network is sufficient for all the outputs.
References
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