contributor author | Oliver Lammel | |
contributor author | Michael Stöhr | |
contributor author | Peter Kutne | |
contributor author | Claudiu Dem | |
contributor author | Wolfgang Meier | |
contributor author | Manfred Aigner | |
date accessioned | 2017-05-09T00:50:23Z | |
date available | 2017-05-09T00:50:23Z | |
date copyright | April, 2012 | |
date issued | 2012 | |
identifier issn | 1528-8919 | |
identifier other | JETPEZ-27189#041506_1.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/148865 | |
description abstract | An experimental analysis of confined premixed turbulent methane/air and hydrogen/air jet flames is presented. A generic lab scale burner for high-velocity preheated jets equipped with an optical combustion chamber was designed and set up. The size and operating conditions were configured to enable flame stabilization by recirculation of hot combustion products. The geometry of the rectangular confinement and an off-center positioning of the jet nozzle were chosen to resemble one burner nozzle of a FLOX® -based combustor. The off-center jet arrangement caused the formation of a pronounced lateral recirculation zone similar to the one in previously investigated FLOX® -combustors (Lückerath et al. , 2007. “FLOX® Combustion at High Pressure with Different Fuel Compositions,” ASME J. Eng. Gas Turbines Power, 130 (1), pp. 011505; Lammel et al. , 2010. “FLOX® Combustion at High Power Density and High Flame Temperatures,” ASME J. Eng. Gas Turbines Power, 132 (12), p. 121503ff). The analysis was accomplished by different laser measurement techniques. Flame structures were visualized by OH* chemiluminescence imaging and planar laser-induced fluorescence of the OH radical. Laser Raman scattering was used to determine concentrations of the major species and the temperature. Velocity fields were measured with particle image velocimetry. Results of measurements in two confined jet flames are shown. The mixing of fresh gas with recirculating combustion products and the stabilization of the methane flame are discussed in detail. The presented findings deliver important information for the understanding of confined jet flames operated with different fuels. The obtained data sets can be used for the validation of numerical simulations as well. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Experimental Analysis of Confined Jet Flames by Laser Measurement Techniques | |
type | Journal Paper | |
journal volume | 134 | |
journal issue | 4 | |
journal title | Journal of Engineering for Gas Turbines and Power | |
identifier doi | 10.1115/1.4004733 | |
journal fristpage | 41506 | |
identifier eissn | 0742-4795 | |
keywords | Temperature | |
keywords | Lasers | |
keywords | Combustion chambers | |
keywords | Flames | |
keywords | Methane | |
keywords | Flow (Dynamics) | |
keywords | Fuels | |
keywords | Nozzles | |
keywords | Chemiluminescence AND Measurement | |
tree | Journal of Engineering for Gas Turbines and Power:;2012:;volume( 134 ):;issue: 004 | |
contenttype | Fulltext | |