Abstract
The aim of this study is to provide experimental results for assessing diesel-biodiesel-ethanol (DBE) blended fuels as future technology for efficiently using these three fuels and for reducing engine emissions. The results included engine performance, brake specific emissions and soot properties for diesel-biodiesel blended with 0%, 5%, 10% and 20% ethanol tested at steady speed of 1800 rev/min under different engine loads. It was found that DBE blends can reduce NOx, CO2, volatile organic fractions and particulate mass-number concentration with improved thermal and combustion efficiency while slightly decreased the particle size.
Highlights
The diesel vehicle industry is under pressure to find methods to meet the dual purpose of reducing reliance on fossil fuels and engine emissions
Diesel-biodiesel-ethanol (DBE) blended fuel has been investigated in recent years so that the disadvantages of either diesel-biodiesel or diesel-ethanol blended fuels can be overcome while maintaining the engine performance close to standard diesel with reduced emissions [1,4]
The brake specific fuel consumption (BSFC), brake thermal efficiency (BTE), in-cylinder pressure and heat release rate for each DBE blend were analyzed with comparison with base fuels of ULSD and biodiesel
Summary
The diesel vehicle industry is under pressure to find methods to meet the dual purpose of reducing reliance on fossil fuels and engine emissions. Shi et al [5] studied the emission characteristics of DBE (75% diesel, 20% methyl soyate and 5% ethanol) on a Cummins-4B diesel engine and found a significant reduction in PM emissions and 2-14% increase of NOx emissions. Kwanchareon et al [1] studied the phase diagram of DBE at different purities of ethanol and different temperatures They examined the fuel properties of the selected blends and their emissions performance in a diesel engine. They concluded that a blend of 80% diesel, 15% biodiesel and 5% ethanol was the most suitable ratio because of the acceptable fuel properties and the reduction of emissions. Et al [7] studied the key properties of DBE and found that blends containing
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