... fuels laser diagnostics probability density function (PDF) droplet diameter gas turbine combustion Fuel injection and atomization are crucial first steps affecting subsequent combustion processes including flame stability, fuel efficiency, and emissions of soot, unburned hydrocarbon, nitric...

... to a maximum power of roughly 50 kW, not including oxidation air. gas turbine model combustor laser diagnostics soot The reduction of soot emissions is one of the key issues in the development of new aero-engines. Combustion modeling can serve to optimize engines with respect to different...

... a can liner and plane windows required for optical access of laser diagnostic and imaging techniques. The dimensions of the combustion chamber are: axial length 170 mm (burner front plate to exhaust gas nozzle), radial window distance 100 mm, and frame distance 111 mm. The exhaust gas nozzle has...

... in brackets in Table 1 . For hydrogen/air flames stability limits were not an issue. Here, they were investigated with nozzle exit velocities v jet  = 90–150 m/s at preheat temperatures T ph  = 573 K without flame flashbacks. The experiments with laser diagnostic measurements were carried out...

... the distributions change drastically. The data set, including PDFs of soot concentration, temperature and flow velocity, is unique in combining different laser diagnostics with a combustor exhibiting a more challenging geometry than existing validation experiments. Three-component velocity fields were measured...

... temperature gas turbine fuel flexibility hydrogen combustion numerical simulation high pressure test rig laser diagnostics The concept of lean premixed combustion in stationary gas turbines has led to a significant reduction in nitrogen oxide emissions in comparison to nonpremixed gas turbine...

... spectra laser diagnostics Raman scattering gas turbine combustor flame stabilization The lean premixed combustion concept is widely applied in stationary gas turbines (GTs) in order to achieve low NO x levels. However, these flames are prone to combustion instabilities...

...Ulrich Stopper; Manfred Aigner; Wolfgang Meier; Rajesh Sadanandan; Michael Stöhr; Ik Soo Kim Lean premixed natural gas/air flames produced by an industrial gas turbine burner were analyzed using laser diagnostic methods. For this purpose, the burner was equipped with an optical combustion chamber...

... approaching one-digit values, instabilities leading to flame extinction occurred. 21 04 2006 19 09 2006 gas turbines combustion fluorescence flames convection cooling air pollution control numerical analysis gas turbine combustor laser diagnostics thermoacoustics numerical...