CO2* Chemiluminescence in Premixed Flames
| Autor: | J. M. Samaniego, Fokion N. Egolfopoulos, Craig T. Bowman |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Premixed flame
Turbulence General Chemical Engineering Analytical chemistry General Physics and Astronomy Energy Engineering and Power Technology Laminar flow General Chemistry Combustion Methane Dilution law.invention chemistry.chemical_compound Fuel Technology chemistry Propane law Chemiluminescence |
| Zdroj: | Combustion Science and Technology. 109:183-203 |
| ISSN: | 1563-521X 0010-2202 |
| DOI: | 10.1080/00102209508951901 |
| Popis: | Chemiluminescence from species such as CH*, C2*, OH* and CO2* often are used as a quantitative diagnostic in experimental studies of premixed combustion. This paper reports results from a numerical investigation of CO2* chemiluminescence as a quantitative diagnostic in laminar and turbulent premixed flames. Calculations are carried out using a complex reaction mechanism for methane and propane and a model for CO2* chemiluminescence. Relationships between chemiluminescent intensity and both H-atom concentration and heat release rate are quantified as functions of dilution, equivalence ratio, steady and unsteady strain-rate. These relationships are monotonic, but not unique; they depend on which flame parameter is varied. However, the effect of unsteadiness on the relationship for a strained flame is negligible, and this allows the use of chemiluminescence-based diagnostics for measurement of relative H-atom concentration and relative heat release rates in unsteady laminar and turbulent premixed fl... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|