Abstract
The kerosene pulse detonation engine is an unsteady propulsive device in which the combustion chamber is periodically filled with a reactive gas mixture, a detonation is initiated, the detonation propagates through the chamber and the product gases are exhausted. The high pressures and resultant momentum flux out of the chamber generate thrust. To get the complete combustion of propellant the kerosene must be atomized at high pressure maintaining constant flow rate. The detonation is achieved here by discretizing the spark with continuous supply of air fuel mixture. The pulse detonation has got high specific impulse and very less specific fuel consumption as compared to other fueled pulse detonation engines. The velocity and pressure at the exit and all the intermittent points inside the tube is studied.
Highlights
Pulse detonation engine is an engine where the low pressure combustion is converted into high pressure detonation wave by changing the cross sectional area of the detonation tube
The pulse detonation engine was run by supplying the fuel air mixture at equivalence 1, leads to complete combustion of fuel
The shock wave will be seperated from the combusted flame by induction zone where the transition from deflagration to detonation starts and the reaction zone where the fuel air reaction begins
Summary
Pulse detonation engine is an engine where the low pressure combustion is converted into high pressure detonation wave by changing the cross sectional area of the detonation tube. The cross section area will be converging type at the object placed inside the tube which holds the combustible mixture and provides a rapid combustion where the detonation wave is followed by the combustion flame [1,2,3,4]. Two distinct types of flame fronts occur within a pulse detonation engine called as deflagration and detonation. A deflagration wave is a subsonic flame front that propagates by heat transfer. A detonation wave is a supersonic flame front that consists of a shock wave coupled with a trailing reaction zone [3]. The principle differences between a deflagration and detonation wave are the wave speeds and pressure difference across the wave
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