A Second-Generation Aerosol Shock Tube and Its Use in Studying Ignition Delay Times of Large Biodiesel Surrogates
Biodiesel is an oxygenated fuel composed of large fatty acid methyl esters (FAME) and is derived from plant oils and animal fats. Its combustion is associated with significant decreases in pollutant emissions such as hydrocarbons, particulate matter, and carbon monoxide relative to fossil diesel . However, combustion of methyl esters in diesel engines has yielded several troublesome problems, including changes in ignition timing and significant increases in nitrogen oxide emissions . These problems can be overcome by developing and applying detailed chemical kinetic models to the design of diesel engines and fuel blends [3, 4]. Chemical kinetic models are based on experimental combustion data, such as those gathered in jet-stirred reactors, rapid compression machines, flow reactors, laminar flame burners, and shock tube experiments.
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- 1.U.S.E.P.A. A comprehensive analysis of biodiesel impacts on exhaust emissions, Washington, D.C, EPA 420-P-02-001 (October 2002)Google Scholar
- 2.Tat, M.E., Van Gerpen, J.H.: Measurement of biodiesel speed of sound and its impact on injection timing. National Renewable Energy Laboratory (NREL), Golden, CO, NREL/SR-510-31462 (2003)Google Scholar
- 3.Pitz, W.J., et al.: Progress in chemical kinetic modeling for surrogate fuels. Lawrence Livermore National Laboratory (LLNL), Livermore, CA, LLNL-CONF-404514 (2008)Google Scholar
- 7.Haylett, D.R., Davidson, D.F., Hanson, R.K.: Ignition delay times of low-vapor-pressure fuels measured using an aerosol shock tube. Combustion and Flame (submitted 2011)Google Scholar