Renewable Energy Biomass Fuels

Autoignition of gasoline surrogates mixtures at intermediate temperatures and high pressures

Authors: Fikri, M. Herzler, J. Starke, R. Schulz, C. Roth, P. [IVG, Universitaet Duisburg-Essen, D-47048 Duisburg (Germany)] Kalghatgi, G.T. [Shell Global Solutions U.K., P.O. Box 1, Chester CH1 3SH (United Kingdom)]
 
Abstract: Ignition times were determined in high-pressure shock-tube experiments for various stoichiometric mixtures of two multicomponent model fuels in air for the validation of ignition delay simulations based on chemical kinetic models. The fuel blends were n-heptane (18%)/isooctane (62%)/ethanol (20%) by liquid volume (14.5%/44.5%/41% by mole fraction) and n-heptane (20%)/toluene (45%)/isooctane (25%)/diisobutylene (10%) by liquid volume (17.5%/55%/19.5%/8.0% by mole fraction). These fuels have octane numbers comparable to a standard European gasoline of 95 RON and 85 MON. The experimental conditions cover temperatures from 690 to 1200 K and pressures at 10, 30, and 50 bar. The obtained ignition time data are scaled with respect to pressure and compared to previous results reported in the literature. (author)
Publication Date: 15 Jan 2008
Resource Type: Journal Article
Resource Relation: Journal: Combustion and Flame; Journal Volume: 152; Journal Issue: 1-2; Other Information: Elsevier Ltd. All rights reserved
Country of Publication: United States
Language: English
Keywords relating to this report:
-METHYLPROPENE
AIR
AUTOIGNITION
ETHANOL
HEPTANE
MIXTURES
OCTANE
PRESSURE RANGE MEGA PA 01-10
STOICHIOMETRY
TEMPERATURE RANGE 0400-1000 K
TEMPERATURE RANGE 1000-4000 K
TOLUENE
VALIDATION

Subjects: