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A comparative study of the effect of varied reaction environments on a swirl stabilized flame geometry via optical measurements (2019)

Banyon, Colin; Rodriguez-Henriquez, Jose J.; Paterakis, George; Malliotakis, Zisis; Sou...

A comparative study of the effect of varied reaction environments on a swirl stabilized flame geometry via optical measurements (2019)

Banyon, Colin; Rodriguez-Henriquez, Jose J.; Paterakis, George; Malliotakis, Zisis; Souflas, Konstantinos; Keramiotis, Christos; Vourliotakis, George; Mauss, Fabian; Curran, Henry J.; Skevis, George; Koutmos, Panagiotis; Founti, Maria

Abstract:

The present work is a part of a larger experimental campaign which examines the behaviour of various fuels on a swirl stabilized flame burner configuration. Overall, detailed speciation measurements and temperature measurements were combined with optical measurements. The work presented here concerns the part of the experimental campaign which deals with the optical characteristics of the examined flames. The work adds to the growing database of experimental measurements assessing engine-relevant reaction environments which shift from traditional ones in order to meet pollutant emission regulations and efficiency standards. Here, the oxidation of several commonly used fuel and fuel surrogates that are subjected to the addition of a bio-derived fuel additive (dimethyl ether) and emulated exhaust gas recirculation (EGR) is studied in a laboratory-scale swirl stabilized burner. The natural flame chemiluminescence has been exploited to selectively measure line of sight CH* and OH* profi...