The pressure-Temperature explosion limits of H2/CH4/O2 mixtures were analyzed computationally and analytically. It is shown that, with the addition of about 5% of H2 to the mixture, the explosion limit evolves from being monotonic to the non-monotonic Z-shaped response characteristic of H2/O2/ explosions. Such transition is much less sensitive compared with the H2//CO/O2 system, which is explained by the different response of the kinetic parameters corresponding to O and OH radical competitions by H2 and CH4. Further eigenvalue analysis with appropriate quasi-steady state simplifications leads to accurate analytic solutions for the explosion limits, with explicit expressions for the controlling pathways for different H2 and CH4 concentrations.
|Published - 2018
|2018 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2018 - State College, United States
Duration: Mar 4 2018 → Mar 7 2018
|2018 Spring Technical Meeting of the Eastern States Section of the Combustion Institute, ESSCI 2018
|3/4/18 → 3/7/18
All Science Journal Classification (ASJC) codes
- Mechanical Engineering
- Physical and Theoretical Chemistry
- Chemical Engineering(all)
- Eigenvalue analysis.
- Explosion limits