The combustion noise in aero-engines is known to have two different origins. First, the direct combustion noise is directly generated by the flame itself. Second, the indirect combustion noise is caused by the acceleration in the turbine stages, of entropy spots generated by the combustion. In both cases, the turbo-machinery is involved in the comb...
The aim of this work is to investigate the acoustic wave generation by pulsed and periodically modulated ion beams in different solid materials depending on the beam parameters and to demonstrate the possibility to apply an intensity modulated focused ion beam (FIB) for acoustic emission and for nondestructive investigation of the internal structur...
Germany
Germany
Two different techniques, i.e. acoustic pyrometry and emissionspectrometric tomography, were developed and combined into an online control system for optimization of gas and particle temperature and gas velocity both in flames and combustion chambers, in consideration of emissions and fuels, for a further improvement of the steam generator efficien...
Germany
Germany
Germany
Germany
Germany
