Experimental investigation of structure and stabilization of spray oxyfuel flames diluted by carbon dioxide

Experimental and numerical analysis of a turbulent spray flame structure

“…The presence of droplets poses a difficulty to experiments, although several classical and new techniques can perform accurate and reliable measurements. Many experimental studies have been undertaken on spray flames, ranging from the simplest configuration of a single burning droplet to more complex spray burners [5][6][7][8][9] . Besides the difficulties and the multiple mechanisms involved in two-phase combustion, the spray jet flame is a canonical configuration with well-defined boundary conditions.…”

Numerical study of the multi-flame structure in spray combustion

“…And they reported that the temperature radial profile has only one peak in the case where the spray is issued into a hotdiluted coflow, but has two separate peaks when the coflow is replaced by room temperature air. Cléon et al [8] carried out experimental studies on a series of spray oxyfuel flames. In their study, the double flame structure is present for all cases, but three different types of flame can occur depending on the degree of CO 2 dilution and coflow velocity.…”

“…While providing valuable insight on the spray flame topology, the simulated configurations in these studies are not close to an experimental spray combustion system. Enjalbert [13] has successfully reproduced the double flame structure of Cléon et al [8] with Large Eddy Simulation (LES) and a tabulated chemistry method. But the simulation was only carried out for a single case, and the ability of predicting spray flames under different conditions was not shown.…”

Ethanol Spray Combustion under a MILD Condition: A Chemical Kinetic Study

“…Different aspects of this difficulty have been reviewed by Jenny et al using numerical and experimental research studies on turbulent dilute spray combustion involving a categorized table of experimental burners until 2013. The new Delft spray in the hot co-flow (DSHC) burner, − Coria Rouen burner, and Cambridge burner , should be added to that table. The summary of specifications of these burners is reported in Table .…”

“…The summary of specifications of these burners is reported in Table . In the Coria Rouen burner, ethanol spray was injected in a coflow CO 2 /O 2 gas mixture with different mixture fractions. The purpose was to consider the effects of dilution (with CO 2 ) on the oxyfuel spray flame and the investigation of flame structure and stability.…”