Saturday, October 10, 2015

Effect of alcohol–gasoline blends optimization on fuel properties, performance and emissions of a SI engine

CATEGORY: FUELS CHEMISTRY-ALCOHOL/GASOLINE BLENDS 
Effect of alcohol–gasoline blends optimization on fuel properties, performance and emissions of a SI engine


Type
Journal Article
Author
B. M. Masum
Author
H. H. Masjuki
URL
Volume
86
Pages
230-237
Publication
Journal of Cleaner Production
Date
January 1, 2015
Abstract
Authors describe development of various physicochemical properties using multiple alcohols (C2 to C6) at various ratios compared to that of the conventional ethanol–gasoline blend. To optimize the properties of multiple alcohol–gasoline blends, properties of each fuel were measured. Microsoft Excel “Solver” was used to determine the optimum blend. Three blend ratios were selected which possessed maximum heating value (MaxH), maximum research octane number (MaxR) and maximum petroleum displacement (MaxD).
The blends were used for testing in a four cylinder gasoline engine at the wide open throttle condition with a variety of speeds. Outcomes were compared with that of E15 and gasoline. Optimized blends displayed higher brake torque and brake thermal efficiency (BTE), but lower brake specific fuel consumption (BSFC) than E15. NOx emission of optimized blends was higher than gasoline. However, MaxR, MaxD, MaxH reduced 4%, 14.57% and 20.76% NOx than that of E15.

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