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Acetone-LIF at Elevated Pressure and Temperature for 282nm Excitation: Experiments and Modeling

Hartwig, Jason William
http://rave.ohiolink.edu/etdc/view?acc_num=case1251506537

Abstract Details

2010, Master of Sciences, Case Western Reserve University, EMC - Mechanical Engineering.
Acetone tracer-LIF in the gas phase is a widely used laser diagnostic technique in low to intermediate temperature and pressure combustion systems. In this work, we design, characterize, and validate a flexible static and flow system to study the independent and coupled effect of elevated pressure and temperature on the photophysics of acetone more relevant to practical engine like conditions (0.5 atm< P <40atm, 295K< T <700K) for an excitation wavelength of 282nm in nitrogen and air. It is shown that relative fluorescence increases for all pressures at elevated temperatures up to a maximum isotherm of ~425K; for subsequently higher temperatures, acetone fluorescence decreases. Acetone fluorescence is only moderately quenched in the presence of oxygen. The current work offers insight into the competing vibrational energy decay rates at elevated temperature and pressure and proposes a global re-optimization of model parameters from the original photophysical model developed by Thurber (1999).
Chih-Jen Sung, PhD (Committee Chair)
Yasuhiro Kamotani, PhD (Committee Member)
Gaurav Mittal, PhD (Committee Member)
Aerospace Materials; Engineering; Mechanical Engineering
acetone; laser induced fluorescence; LIF; tracer; high pressure; high temperature; optimization; pyrolysis; photolysis; oxygen quenching

Recommended Citations

Citations

  • Hartwig, J. W. (2010). Acetone-LIF at Elevated Pressure and Temperature for 282nm Excitation: Experiments and Modeling [Master's thesis, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1251506537

    APA Style (7th edition)

  • Hartwig, Jason. Acetone-LIF at Elevated Pressure and Temperature for 282nm Excitation: Experiments and Modeling. 2010. Case Western Reserve University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1251506537.

    MLA Style (8th edition)

  • Hartwig, Jason. "Acetone-LIF at Elevated Pressure and Temperature for 282nm Excitation: Experiments and Modeling." Master's thesis, Case Western Reserve University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=case1251506537

    Chicago Manual of Style (17th edition)

case1251506537
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© 2009, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.