Development Of Gasturbine With Detonation Chamber

Extensive and complex studies of the application of continuously rotating detonation (CRD) to gasturbine are presented. Special installation of high pressure preheated air supply system was constructed which allows to supply air at rate of a few kg/s, preheated to more than 100 degrees C and at initial pressure up to 2.5 bar. Supply system for Jet-A fuel which could be preheated to 170 degrees C was also constructed. Additionally gaseous hydrogen supply system was added to the installation. Measuring system for control air flow and measurements of detonation parameters were installed and data acquisition and control system implemented. Extensive research of conditions in which CRD could be established and supported in open flow detonation chambers, throttled chambers and finally in detonation chambers attached to the GTD-350 gasturbine engine where conducted. Conditions for which stable detonation was achieved are presented. It was found that for conditions when the GTD-350 engine was supplied by gaseous hydrogen or by dual-fuel, Jet-A and gaseous hydrogen, thermal efficiency of the engine could be improved even by 5-7% as compared to the efficiency of the base engine.