Citation

Wang X, Law CK. J. Chem. Phys. 2013; 138(13): 134305.

Affiliation

Center for Combustion Energy and Department of Thermal Engineering, Tsinghua University, Beijing 100084, China.

Copyright

(Copyright © 2013, American Institute of Physics)

DOI

10.1063/1.4798459

PMID

23574225

Abstract

In this study, the essential factors governing the Z-shaped explosion limits of hydrogen-oxygen mixtures are studied using eigenvalue analysis. In particular, it is demonstrated that the wall destruction of H and HO2 is essential for the occurrence of the first and third limits, while that of O, OH, and H2O2 play secondary, quantitative roles for such limits. By performing quasi-steady-state analysis, an approximate, cubic equation for the explosion limits is obtained, from which explicit expressions governing the various explosion limits including the state of the loss of non-monotonicity are derived and discussed.

Language: en