Pulse Detonation Engine (PDE) Test Rig
The LCCC experimental pulse detonation engine (PDE) test bed facility is the first of its type in a UK university allowing researchers to investigate the PDE cycle in a ground based test PDE demonstrator. The PDE’s detonation chamber is regularly instrumented to accept a suite of high frequency measurement equipment consisting of piezoelectric pressure transducers and flame time of arrival sensors, which can measure at
maximum frequencies of between 90 kHz and in excess of 1 MS/s. This allows the research at the LCCC to investigate dynamic explosion pressures, flame speed and shock time of arrival for a range of operating conditions, and internal tube geometry configurations. The rigs flame accelerating obstacle array can be arranged flexibly according to the location of the tube flanges and can fill the entire tube or just a small section with a range of different obstacle area blockage ratios and types.
Current research topics being investigated on this rig include focus on flame acceleration (FA), and deflagration to detonation transition (DDT) studies in gaseous fuels such as propane. The rig is capable of accepting a range of gaseous fuels and is instrumented with thermocouples and static pressure sensors in addition to combustion measurement instrumentation.