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2004-2005 Lunar ISRU University Design Competition. Faculty Advisors: Dr. Jim Mantovani Dr. Hamid K. Rassoul Faculty Consultant: Dr. Samuel T. Durrance. Presenter: Jayme Poppin. Subgroups. Analysis Excavation and Delivery Concepts Public Relations. Constraints
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2004-2005 Lunar ISRU University Design Competition Faculty Advisors: Dr. Jim Mantovani Dr. Hamid K. Rassoul Faculty Consultant: Dr. Samuel T. Durrance Presenter: Jayme Poppin
Subgroups • Analysis • Excavation and Delivery • Concepts • Public Relations
Constraints The rover will land in a shadowed crater containing water ice. Max mass= 50kg Max power= 100W Mission will remain active on moon for one month. *Information obtained from: http://www.fsgc.engr.ucf.edu/isru/what.html Tasks Excavator arm must collect regolith up to one meter below surface. Must move regolith from arm to reaction chamber. Collect up to 100kg by end of mission. System must gather data on regolith such as shear, yield, compaction. Design Requirements
The South Pole • Left side, top: orthographic projections focusing on the southern pole of the moon. http://solarsystem.nasa.gov/multimedia/gallery/Aiken_Maps.jpg • Right side, top: Topographic view of South Aitken Basin. http://solarsystem.nasa.gov/multimedia/gallery/Aitken_Basin.jpg • Right side, bottom: Snapshot of the very southern tip of the moon taken by the Clementine spacecraft. http://antwrp.gsfc.nasa.gov/apod/image/lunarsp_clem.gif
SG5-UT Arm & Accessories • Sensors • Grip • Possible add-ons • CrustCrawler • 5-axis design • Programmable electronics
A Basic Introduction to Molten Silicate Electrolysis • Advantages: • high concentration of silicates in the lunar regolith (~45%) • relatively high efficiency • ease of separation of oxygen from byproducts (just melt it, and then electrolyze it!) • Disadvantages: • high temperatures (power) required for reaction to take place
General analysis procedure outline • Sifting • Conductivity separation chamber • Reaction chamber • Oxygen Separation • Oxygen Analyzer • Oxygen collection chamber
Conductivity separation chamber The idea behind it: • O2 soil • ~700oC to increase conductivity • Due to heating, gases – mostly H2, H2O, CF4 (from solar wind, etc) that are in lunar soil are liberated
Reaction chamber / Insulation The idea behind it: • Process • Insulation • Heat loss
Oxygen separation chamber The idea behind it: • Along with O2, other gases escape our reaction chamber • It uses membranes that are selectively permeable to O2 Cerametic Inc. Ion Transport Membrane Cost: $10,000
Gas analyzers The idea behind it: • Efficiency • Percent O2 • Possible loss of O2
CONCEPTS • Modes • Transit • Calibration • Acquiring Regolith • Analysis • Standby • Timeline • Scenarios • The Glue
Public Relations • Outreach • Published Articles • Presentations • Video • Website http://www.astro.fit.edu/isru/index.html