Exploring experimentally effect of kerosene temperature on performance of pulse detonation engine (PDE)

Aim. The introduction of the full paper points out the necessity of investigating the important effect of kerosene temperature on PDE performance in general and on DDT (deflagration to detonation transition) in particular. Section 1 explains how we use the experimental setup as shown in Fig. 1 to explore experimentally such effect of kerosene temperature. The titles of subsections 2.1 through 2.3 are respectively experimental mechanism, the PDE detonation performance (velocity, pressure, DDT distance) at the same detonation frequency but different kerosene temperatures and the detonation performance at the same kerosene temperature but different detonation frequencies. The experimental results in section 2 and their analysis show preliminarily that: (1) the kerosene temperature exerts large effect on detonation; (2) the higher the kerosene temperature, the easier the PDE is detonated and the shorter the DDT distance is; (3) the velocity of detonation wave decreases with increasing detonation frequency when the kerosene temperature is kept constant.