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What is a Pulse Detonation Engine?
One of the newest and most exciting areas of pulse-jet development is the Pulse Detonation Engine (PDE). While they work on similar principles to a regular pulsejet, the PDE has one very fundamental difference -- it detonates the air/fuel mixture rather than just allowing it to simply deflagrate (burn vigorously).
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Advantages New Technology Improved fuel efficiency
Greater operational range Higher Altitudes Higher Mach Numbers (0 – 4+) Longer Flight Range Reduced Flight Costs Simpler Mechanical Construction No Pre - Compression Required Dual Operational Mode for Single-Stage to Orbit (SSTO) Vehicle
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Conceptual Advantages II
High Thrust Density High Specific Impulse Significant Static Thrust, Natural Geometry for Integration into a Combined Cycle Engine
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How do PDEs work?
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Design Challenges DDT (Deflagration to Detonation Transition)
Inlet pressure ratio Valve configurations Overall injector ignition timing Potential Fuels Material selection
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