Transcript Document 7226931

Hybrid Rocket Project
Joel Beilke
University of
Minnesota Duluth
Industrial Engineering
Fall Semester 2004
LAST ONE!
Hybrid Rocket History
• Invented in the 1930s
– Europe
– United States
• Never caught on
– Early not enough research
– Established Traditional rockets
• Renewed interests today
– Safety
– Cost
Hybrid Rocket History
Since 2001 NASA investing in Hybrids
Hybrid Rocket History
SpaceShipOne Wins $10m X-Prize
Hybrid Rocket History
On October 4, 2004, SpaceShipOne rocketed into history,
became the first private manned spacecraft to exceed an
altitude of 328,000 feet twice within the span of a 14 day period,
thus claiming the ten million dollar Ansari X-Prize.
www.scaled.com/projects/tierone/041004_spaceshipone_x-prize_flight_2.html
What is a Hybrid Rocket?
• Merging of two technologies
• Solid Fuel Grain
– Safe
– inexpensive
• Liquid Oxidizer
– N2O is Safe - not pure O2
– Less cost in handling
What is a Hybrid Rocket?
• Diagram of components
http://www.hawkfeather.com/rockets/hybrid_tutorial.html
Hybrid Rocket Benefits
• Safe
– Non-explosive
– Unmixed oxidizer and fuel
• Lower Cost
– Solid fuel is cheaper (paraffin wax, rubber)
– N2O is easier to handle
Hybrid Rocket Benefits
• Can be throttled
– During flight
– Shut-down and restarted
• Faster turnaround
– Boosters are rechargeable
– Vehicle components are simplified
UMD Hybrid Rocket Project
• Build a capable test stand
– Computer controlled
– Capable of 3” dia x 3’ long rocket
– Capable 300lb of thrust
– Able to conduct creditable research
• Allow further research
– Student projects
– ME lab usage
Hybrid Rocket Test Stand
Frame and test bed design
Hybrid Rocket Test Instrumentation
• Analog and Digital I/O
• Thrust
• Pressure
tank, combustion,exhaust
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Temperature
Valve control
Safety and E-stop
Lift and light
Hybrid Rocket Software
• Think & Do® Live!™
– PC-based control software
– Motion control
– Flowchart logic for control
– Human Machine Interface
– DDE Dynamic Data Exchange
For Microsoft Windows Applications
Hybrid Rocket Software
Benefits:
– Remote access Ethernet connection
– Soft keys – custom screen and graphing
– Dump to Excel
– Lower cost vs. LabView
– We now use it to run the router in 4235
Questions?
LAST ONE!
More Pictures
In 1995, NASA and DARPA started the Hybrid Propulsion
Demonstration Program (HPDP). Under this program, the
world's largest hybrid engine was tested at NASA's Stennis
Space Center August 13, 1999. It was 70 inches by 45 feet,
and developed 250,000 pounds of thrust for 15 seconds
http://www.hawkfeather.com/rockets/hybrids1.html
More Pictures
Fuel Grain
More Pictures
Nozzle and Fill Tube