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Rotating Detonation Rocket Engine (RDRE)

Rotating Detonation Rocket Engine (RDRE) mind map
Recent News
NASA's Success
3D-printed RDRE Tested
Duration
251 Seconds
Thrust
Over 5,800 Pounds
Purpose
Emulate Lander Touchdown
Deep-space Burns
Significance
Design Efficiency Leap
Lightweight Propulsion Systems
Deep Space Missions
Moon to Mars Vision
Partners
In Space LLC
Purdue University
GE Aerospace and GE Research
Hypersonic Dual-Mode Ramjet
With RDE
Announcement
Spin-off Hypersonic Sector
Plan
Full-scale DMRJ with RDE in 2024
Acquisition
Innoveering in 2022
JAXA's Achievement
First RDE Test in Space
Date
July 26, 2021
Vehicle
S-520-31 Sounding Rocket
Thrust Class
500 N
Why
Enhanced Combustor Efficiency
Improved Aerospace Performance
What
Technology Overview
Pressure Gain Combustion
Supersonic Flame Front
Efficiency Gain
Up to 25%
Design
Circular Channel
Fuel and Oxidizer Injection
Self-sustaining Detonations
Combustion Products Expansion
Where
Global Developments
NASA in USA
JAXA in Japan
GE Aerospace
How
Optical Diagnostic Techniques
Advanced Research
Laser Diagnostics
Planar Laser-induced Fluorescence
University of Michigan Study
State-to-State RDE Model
Machine Learning Algorithms
Combustor Geometry Analysis
Nagoya University and JAXA
Laboratory-scale Ethanol-Nitrous Oxide RDE
Plans for Sounding Rocket Launch
Pros/Significance
Increased Efficiency
Fuel Savings
Enhanced Performance
Aerospace Sector Benefits
Reduced Weight and Volume
Space Propulsion Advancements
Ethanol-Nitrous Oxide RDE
Scalability for Various Missions
Way Forward
Further Research and Development
Across Academic and Commercial Institutions
Scaling for Higher Performance
Collaboration with Venus Aerospace
NASA's Glenn Research Center

The Rotating Detonation Rocket Engine (RDRE) represents a significant advancement in rocket propulsion technology. It utilizes pressure gain combustion, where detonations continuously travel around an annular channel, achieving supersonic flame front expansion. This method is theoretically more efficient than traditional deflagrative combustion, potentially offering up to 25% efficiency gains. In 2023, NASA successfully tested a novel, 3D-printed RDRE, producing over 5,800 pounds of thrust, demonstrating the potential for lightweight propulsion systems for deep space missions. GE Aerospace and GE Research have also shown interest in RDE technology, planning to demonstrate a full-scale hypersonic dual-mode ramjet with RDE in 2024. Furthermore, JAXA achieved a milestone by testing an RDE in space for the first time. This ongoing research and development across various institutions aim to enhance combustor efficiency and performance, significantly benefiting the aerospace sector.

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