| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 658476 | International Journal of Heat and Mass Transfer | 2013 | 9 Pages |
Abstract
Pulverized coal combustion in mixture of oxygen and recycled flue gasses, known as oxy-fuel combustion, is considered as one of the several possible alternatives to conventional pulverized coal combustion. Switching from conventional pulverized-coal combustion to oxy-fuel combustion brings significant changes in flame properties among which the most important are ignition properties and flame stability. This paper presents the results of experimental and numerical analysis of ignition phenomena under O2/CO2 mixtures with different oxygen content. The main focus of the presented paper is to suggest novel ignition sub-model which can describe all possible ignition mechanisms. Proposed ignition sub-model together with Large Eddy Simulation (LES) turbulence modeling enables accurate prediction of main flame characteristics: ignition point position, ignition temperature, and flame stability.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Fluid Flow and Transfer Processes
Authors
Rastko JovanoviÄ, BoÅ¡ko RaÅ¡uo, Predrag StefanoviÄ, Dejan CvetinoviÄ, Bartosz Swiatkowski,