High-pressure single-pulse shock tube investigation of rich and stoichiometric ethane oxidation

Very High Pressure Single Pulse Shock Tube Studies of Aromatic Species

“…The experimental work performed here at UIC has obtained data over a pressure range spanning 5 bar at the low end, which is close to the upper limit of most other chemical shock tubes, and up to 1000 bar at the high end, beyond the pressure capabilities of other chemical shock tubes. The experimental study of ethane combustion [29][30][31] spans P=5-1000 atm, T=1000-1500 K, oxidation (Φ=1, 5) and pyrolysis. Much of the higher pressure data 29,30 has been discussed in detail in prior DOE annual reports.…”

“…The experimental study of ethane combustion [29][30][31] spans P=5-1000 atm, T=1000-1500 K, oxidation (Φ=1, 5) and pyrolysis. Much of the higher pressure data 29,30 has been discussed in detail in prior DOE annual reports. The experimental work in this annual period has been extended to pressures as low as 5 atm and the entire data set has been simulated with a single comprehensive chemical kinetic model 31 that can capture the experimental trends over the wide range of pressures, temperature and stoichiometry.…”

“…The changes made to this model are described in more detail in the relevant publications 30,31 . The predictive capability of the widely used GRI-Mech 3.0 33 was also tested against the entire data set.…”

Ethane oxidation and pyrolysis from 5 bar to 1000 bar: Experiments and simulation

“…The HPST has previously been used to study ethane oxidation and pyrolysis at 340 bar and 613 bar [1] and later stoichiometric and fuel rich oxidation at 40 bar [2]. In both studies, the experimental data were simulated using GRI-Mech 3.0 [3] and a detailed model for ethane oxidation that is an updated version of a model from Miller and Klippenstein [4] and is referred to as Miller2001 in previous work [1,2]. Both models simulated the high pressure data reasonably well particularly considering that neither model had been developed for high pressure or pyrolysis.…”

“…However, the Miller2001 model could not predict acetylene concentrations very well and GRI-Mech 3.0 had some difficulty predicting ethane consumption for = 1. Neither model was able to simulate the 40 bar = 5 data and several modifications, discussed in [2], were made to the Miller model to achieve good predictions for these conditions. Unfortunately, these changes did somewhat degrade the prediction of the high-pressure = 1 data and seriously affected the simulation of the pyrolytic data.…”