Accession Number : ADA263611


Title :   High Pressure Preignition Chemistry of Hydrocarbons and Hydrocarbon Mixtures


Descriptive Note : Final rept. 1 Jan 1990-31 Dec 1992


Corporate Author : DREXEL UNIV PHILADELPHIA PA DEPT OF MECHANICAL ENGINEERING AND MECHANICS


Personal Author(s) : Cernansky, Nicholas P ; Miller, David L ; Koert, David N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a263611.pdf


Report Date : 24 Feb 1993


Pagination or Media Count : 21


Abstract : A research program to study the oxidation and ignition characteristics of hydrocarbon fuels and their mixtures has been conducted at Drexel University. The research focused on three major tasks: examination of the chemistry of autoignition during compression ignition processes by performing parametric studies in a variety of experimental facilities listed below; development of chemical models which can simulate the experimental results; and the development of in situ measurement techniques. Several complementary bench scale experiments, which include a static reactor, an atmospheric pressure flow reactor, and a pressurized flow reactor, were used to examine the preignition chemistry and ignition behavior of progressively larger hydrocarbons over a range of temperatures, pressures, and equivalence ratios. Gas chromatography and GC/MS were used for chemical analysis of the stable reaction intermediates and products. Fourier Transform Infrared (FTIR) spectroscopy and degenerate four-wave mixing (DFWM) spectroscopy were used in efforts to develop in situ species measurement techniques. The overall program has been successfully completed and has added to our understanding of fuel factors and physical effects on the oxidation and ignition processes of hydrocarbon fuels.... Hydrocarbon Fuels, Preignition Chemistry, Oxidation, Ignition, Chemical Kinetics.


Descriptors :   *MIXTURES , *HYDROCARBONS , *IGNITION , COMPRESSION , MEASUREMENT , RATIOS , TEMPERATURE , CHEMISTRY , OXIDATION , MIXING , ATMOSPHERICS , COMPRESSION IGNITION , MASS SPECTROMETRY , AUTOIGNITION , GAS CHROMATOGRAPHY , CHEMICAL ANALYSIS , STATICS , BAROMETRIC PRESSURE , KINETICS , PRESSURE , SCALE , FUELS , MODELS , SPECTROSCOPY , HIGH PRESSURE , FOUR WAVE MIXING


Subject Categories : Organic Chemistry
      Physical Chemistry
      Combustion and Ignition


Distribution Statement : APPROVED FOR PUBLIC RELEASE