Joachim GRUNE, Karsten SEMPERT, Thomas JORDAN, Daniel BANUTI

DOI Number: N/A

Conference number: HiSST-2025-283

Rotating detonation combustors (RDC) promise superior efficiency and specific impulse compared to gas turbines and rocket engines. Their potential lies in using a fluid mechanical instability – detonation waves – rather than mechanical means – turbo pumps or compressors – to create the high pressures necessary for efficient combustion. However, the combustor experiences extreme conditions of periodic heat release and pressure peaks that travel around the annular combustor at frequencies of several thousand Hertz imposing challenging mechanical and thermal stresses. Reliably reaching and controlling quasi steady-state conditions is a prerequisite for both sustained RDC operation and to ensure repro-
ducible boundary conditions for numerical simulations. Here, we report on the activities at the Institute for Thermal Energy Technology and Safety (ITES) at KIT Karlsruhe to develop a test bed, from early safety-related detonation experiments to design and operation of an RDC-based compressorless gas turbine that reaches quasi-steady state conditions with a turbine.

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In Categories: 1.Events, 1.HiSST 2025, Propulsion Systems & Components
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