Annular Combustion Chamber Test Bench

The atmospheric annular combustion chamber test rig enables the investigation of flame interactions in a model set-up of a gas turbine combustion chamber.

Combustion air and combustion gases are precisely controlled by M+W Instruments mass flow controllers. The special feature of the design is the separate control and the possibility to tilt one burner independently from the other seven burners. This makes it possible to analyse the effects on the flue gas signature and flame interactions caused by a burner failure or control deviation. The facility also has a jacket flow cooling system for the inner and outer quartz glass, allowing experiments to be carried out beyond the previous power range.

In addition to the adaptation of exhaust gas and temperature measurement techniques (NOx, CO, CHx, H2O), the knowledge of the investigations can be deepened by the use of optical temporally and spatially resolved measurement techniques (OH-PLIF, PIV, acetone tracer LIF) and applied to a large number of parameters using an existing numerical simulation model.

The combination of the atmospheric single burner test stand and the atmospheric annular combustion chamber paves the way for scaling up prototype geometries to a higher performance level thanks to precise metrological observation options.