A new shock tube targeting low temperature, high pressure, and long test times
was designed and installed at the Turbomachinery Laboratory in December of 2008. The
single-pulse shock tube uses either lexan diaphragms or die-scored aluminum disks of up
to 4 mm in thickness. The modular design of the tube allows for optimum operation over
a large range of thermodynamic conditions from 1 to 100 atm and between 600-4000 K
behind the reflected shock wave. The new facility allows for ignition delay time,
chemical kinetics, high-temperature spectroscopy, vaporization, atomization, and solid
particulate experiments.
An example series of ignition delay time experiments was made on mixtures of
CH4/C2H6/O2/Ar at pressures from 1 to 30.7 atm, intermediate temperatures from 1082
to 2248 K, varying dilutions (between 75 and 98% diluent), and equivalence ratios
ranging from fuel lean (0.5) to fuel rich (2.0) in this new facility. The percentage by
volume variation and equivalence ratios for the mixtures studied were chosen to cover a
wide parameter space not previously well studied. Results are then used to validate and
improve a detailed kinetics mechanism which models the oxidation and ignition of methane and other higher order hydrocarbons, through C4, with interest in further
developing reactions important to methane- and ethane-related chemistry.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2009-12-7613 |
| Date | 2009 December 1900 |
| Creators | Aul, Christopher Joseph Erik |
| Contributors | Petersen, Eric L. |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Thesis, text |
| Format | application/pdf |
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