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Rocket Types

Rocket Types. EGR 4347 Analysis and Design of Propulsion Systems. Rocket Propulsion. Ideal Rocket Thrust Specific Impulse. Rocket Propulsion. Rocket Propulsion. Rocket Propulsion Elements – Sutton and Biblarz. Rocket Propulsion. Rocket Propulsion Elements – Sutton and Biblarz.

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Rocket Types

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  1. Rocket Types EGR 4347 Analysis and Design of Propulsion Systems

  2. Rocket Propulsion • Ideal Rocket Thrust • Specific Impulse

  3. RocketPropulsion

  4. Rocket Propulsion Rocket Propulsion Elements – Sutton and Biblarz

  5. Rocket Propulsion Rocket Propulsion Elements – Sutton and Biblarz

  6. Rocket Propulsion

  7. Chemical Rockets • Liquid – typical O2 and H2 • Solid Scientific American – March 2000

  8. Liquid Rockets Scientific American – March 2000

  9. Solid Rockets Scientific American – March 2000

  10. Solid Rockets

  11. Rocket Performance – Mars Mission • Thrust – force 1 N  ¼ lbf • ExhaustSpeed – Measure of fuel efficiency • Sample Burn Time – How long the rocket must fire to accelerate a 25-ton payload from low earth orbit to escape velocity. The time is inversely related to the thrust. • Sample fuel ratio – fraction of the total spacecraft mass taken up by propellant. The amount of fuel is exponentially related to the exhaust speed. Scientific American – March 2000

  12. Rocket Performance

  13. Tested in 1960s Hydrogen heated to 2,500 deg C Reactors can generate electricity Public opposition Nuclear Rockets Scientific American – March 2000

  14. Rocket Performance

  15. 1950s Electrical fields accelerate particles Fuel – cesium or xenon Cathode dumps electrons into flow at exit Grids get in the way ION Scientific American – March 2000

  16. ION Rocket Propulsion Elements – Sutton and Biblarz

  17. Rocket Performance

  18. 1970s Russia Radial Magnetic Field Xenon No grids Hall Effect Scientific American – March 2000

  19. Hall Effect Rocket Propulsion Elements – Sutton and Biblarz

  20. Rocket Performance

  21. Magnetoplasmadynamic (MPD) • Magnetic acceleration • Magnetic field electrically generated Scientific American – March 2000

  22. Rocket Performance

  23. Argon Fuel Radial Magnetic Field 200 times a second No electrodes Pulsed Inductive Thruster (PIT) Scientific American – March 2000

  24. Rocket Performance

  25. Variable Specific Impulse Magnetoplasma Rocket Radio waves heat fuel Ionized propellant (Hydrogen) Magnetic fields VASIMR Scientific American – March 2000

  26. VASIMR

  27. Rocket Performance

  28. Solar Sails • 9 N per square km • Large fragile structure • NASA working on Magnetic “sail” to catch sun particles Scientific American – March 2000

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