Charged Species Concentration in Combusting Mixtures Using Equilibrium Chemistry
Author
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-04
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Ionization in flames is of interest in the design and development of modern combustion devices.
The identity and concentration of various charged species in reacting mixtures can play an important role in the diagnostics and control of such devices.
Simplified chemistry computations that provide good estimates of ionic species in complex flow-fields can be used to model turbulent reacting flows in various combustion devices, greatly reducing the required computational resources for design and development studies.
A critical assessment of the use of the equilibrium chemistry method to compute charged species concentration in combusting mixtures under various temperatures, pressures, and thermal disequilibrium conditions is presented.
The use of equilibrium chemistry to compute charged species concentrations in propane-air mixtures performed by Calcote and King has been extended.
A more accurate computational methodology that includes the effect of negative ions, chemi-ions (H3O+ and CHO+), and thermal nonequilibrium was investigated to evaluate the suitability of equilibrium computations for estimating charged species concentrations in reacting mixtures.
The results show that equilibrium computations which include the effects of H3O+ and elevated electron temperatures can indeed explain the levels of ion concentrations observed in laboratory flame experiments under lean and near-stoichiometric conditions.
Furthermore, under engine-like conditions at higher temperatures and pressures, equilibrium computations can be used to obtain useful estimates of charged species concentrations in modern combustion devices.
American Psychological Association (APA)
Aithal, S. M.. 2018. Charged Species Concentration in Combusting Mixtures Using Equilibrium Chemistry. Journal of Combustion،Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1182014
Modern Language Association (MLA)
Aithal, S. M.. Charged Species Concentration in Combusting Mixtures Using Equilibrium Chemistry. Journal of Combustion No. 2018 (2018), pp.1-11.
https://search.emarefa.net/detail/BIM-1182014
American Medical Association (AMA)
Aithal, S. M.. Charged Species Concentration in Combusting Mixtures Using Equilibrium Chemistry. Journal of Combustion. 2018. Vol. 2018, no. 2018, pp.1-11.
https://search.emarefa.net/detail/BIM-1182014
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1182014