High Pressure Preignition Chemistry of Hydrocarbons and Hydrocarbon Mixtures
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 program entailed mechanistic studies examining the oxidation chemistry of single-component hydrocarbons and ignition studies examining the overall ignition of pure single component fuels and fuel blends. Gas chromatography, gas chromatography/mass spectrometry, and gas chromatography/Fourier Transform Infrared Spectrometry (FTIR) analyses were used to determine the stable reaction intermediates and products associated with the preignition oxidation of these fuels. Development and application of spectroscopic diagnostics to permit in situ measurement of selected table and radical species also was successful. Associated in-house and collaborative modeling efforts were directed towards developing detailed and reduced chemical mechanisms that were used to model and predict relevant ignition and emission characteristics. We have investigated the oxidation of pure hydrocarbons and hydrocarbon blends in our various combustion systems, with emphasis on the effects of elevated pressure using our pressurized flow reactor (PFR) facility. Detailed experimental data were generated from the PFR for use in associated kinetic modeling work. We continued to develop and extend both detailed and reduced chemical kinetic models. Also, we collaborated with other laboratories to develop the situ measurement capabilities using degenerate four wave mixing (DFWM) and cavity ringdown laser absorption spectroscopy (CRLAS).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 20, 1998
- Accession Number
- ADA358087
Entities
People
- D. L. Miller
- N. P. Cernansky
Organizations
- Drexel University