LEO final presentation 2012
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This document provides an analysis of low Earth orbit (LEO) launch capabilities to transport mass into LEO for constructing a permanent commercial space structure. It examines technical advances that could enable lower costs, as well as political and investment factors. Models are developed to determine optimal launch systems given constraints like a 2.5 year timeframe and 30 launches. Systems like Falcon Heavy and Proton are identified as most suitable based on cost-effectiveness and ability to meet mass and schedule requirements for the proposed LEO construction.
![Assumptions
• Turnaround times are meant to represent an average
between all chosen launch methods
• Limitations on number of launches based upon
turnaround time (900 days / turnaround time [days])
• Astronauts will work in groups of 6.
They are to be replaced every 6 months.
Each manned launch has a capacity of 3 passengers
Minimum of 10 launches to have 6 astronauts
continuously working](https://image.slidesharecdn.com/leofinalpresentation-131221013050-phpapp01/85/LEO-final-presentation-2012-12-320.jpg)
LEO final presentation 2012
- 1. An Analysis of Low Earth Orbit Launch Capabilities George Mason University May 11, 2012 Ashwini Narayan James Belt Colin Mullery Ayobami Bamgbade
- 2. Content • Introduction: Background / need / problem statement • Objectives and scope • Technical approach • Model / Architecture • Results • Evaluation • Future work • Acknowledgements
- 3. Private Sector • Billionaire Investors: • Jeff Bezos (Blue Origin) • Paul Allen (Stratolaunch Systems) • Sir Richard Branson (Virgin Galactic) • Elon Musk (SpaceX) • Larry Page and Eric Schmidt (Planetary Resources Inc.) • Total Net Worth: ~$64 Billion “Planetary Resources' high-profile investors are in good company, for private spaceflight ventures have attracted the attention of some of the world's richest people in the last decade or so. And some of these folks aren't just money men, advisers or paying customers they're running the show” -Mike Wall (Apr 25, 2012) Source: http://www.space.com/15419-asteroid-mining-billionaires-private-spaceflight.html
- 4. Political Climate Presidential Policy: • In 2010 President Obama set goal of asteroid exploration in 2025 • Transient goals reflect shortcomings of space exploration based solely on government agendas • Shuttle Program Cancelled Government Agencies with a focus on long-term interstellar travel: • Defense Advanced Research Projects Agency (DARPA) 100 Year Starship Program
- 5. Technical Advances International Space Station (ISS) Baseline: • Costs of the ISS were astronomical due to phased construction, a more holistic approach will provide significant savings in construction costs • Lessons learned from the ISS can help in construction of this base and future permanent LEO habitations • Better technologies, specifically launch capabilities will result in cheaper launch costs
- 6. An Opportunity Technical Advances Political Climate Investment Opportunity ISS Baseline and Shortcomings Private Industry
- 7. Low Earth Orbit Low Earth orbit is defined as the distance between 180km and 2,000km above the earths surface.
- 8. Stakeholders U.S. Government: -FAA -NASA -DARPA (and other R&D Facilities) Private Sector: -Potential Investors -Companies involved in launch capabilities (i.e. SpaceX) -SPEC Innovations Foreign Governments: -Foreign Air Space Controllers -Foreign Government Launch Agencies
- 10. Scope • Constraints on NASA's Technology Readiness Levels (TRLs) and rocket diameter will eliminate many launch capabilities • Feasibility determined by NASA’s Technology Readiness Levels. • Environmental/docking constraints in LEO are not considered • Avoided complex cost analysis. Assumed capability providers estimates to be accurate
- 11. Problem Statement • Investigate lower cost, higher performance Launch Capabilities for transporting mass into low earth orbit given the following constraints: Within the next ten years Lift 1000 metric tons into orbit At least 200 km above the earth’s surface During a period no longer than 2.5 years Minimize cost/pound With no more than 30 launches.
- 12. Assumptions • Turnaround times are meant to represent an average between all chosen launch methods • Limitations on number of launches based upon turnaround time (900 days / turnaround time [days]) • Astronauts will work in groups of 6. They are to be replaced every 6 months. Each manned launch has a capacity of 3 passengers Minimum of 10 launches to have 6 astronauts continuously working
- 13. Technical Approach Perform analysis of current and predicted capabilities to determine which best meet(s) cost / performance / feasibility needs for building a permanent commercial space structure in LEO. • Use available launch capabilities in order to create models demonstrating cost minimization according to various turnaround times • Include trip minimization models where cost is excluded • Perform “What-if” scenarios relevant to optimization • Analyze optimal launch capabilities to provide a cost range at which they remain optimal • Provide recommendations based on comparisons
- 14. Methodology • Use NASA’s Technology Readiness Levels (TRLs) in order to identify launch methods that are feasible to analyze (within 510 year timeframe) • Compare costs, number of launches, timeframe adherence, overall capabilities of competing technologies • Provide a detailed analysis of chosen launch capability(s)
- 16. Heavy Lift Launch Systems (1 of 2) Falcon Heavy Space Launch System Proton
- 17. Heavy Lift Launch Systems (2 of 2) Soyuz Zenit
- 18. Variables in Model • Diameter of Rocket (5m) • Launch Cost (<$10 Billion) • Number of Launches (20-30) • TRL Level (>7)
- 20. Turnaround Time Results Total Cost (millions $) 5000 4750 4500 4250 4000 3750 3500 3250 3000 2750 2500 2250 2000 for
- 23. Optimal Solutions Cost per launch Mass to LEO Capability Falcon Heavy 128,000,000 53,000 Unbiased Proton Results Launch Vehicle 95,000,000 44,200 Dnepr-1 13,000,000 4,500 diameter Company TRL Type (m) # Trips Total # of Trips 7 Mixed Space X Krunichev Yuzhnoye Design Bureau 5.2 10 9 Cargo 7.4 11 9 Cargo 3 Total Cost Cost per launch Capability Falcon Heavy 128,000,000 Spec-cific Proton Results Launch Vehicle 95,000,000 Zenit-2M 61,000,000 Mass to LEO 23 2 $2,351,000,000 diameter Company TRL Type (m) # Trips Total # of Trips 53,000 Space X 7 Mixed 5.2 8 44,200 Krunichev Yuzhnoye Design Bureau 9 Cargo 7.4 13 9 Mixed 3.9 2 $2,381,000,000 13,900 Total Cost 23
- 28. Recommendations • SPEC Innovations should invest in a closer examination of the Proton Launch Vehicle and the Falcon Heavy. Without these capabilities, cost and number of trips required will increase dramatically • If the Falcon Heavy is ready in the timeframe desired for construction of the space station to begin, it can be recommended as the primary source of transport.
- 29. Future Work • Due to the inaccuracy of estimation in these types of problems it is recommended that the model revisit the cost and capabilities of immature technologies when more solid attributes are known • A re-examination of the problem as a scheduling model would provide insight into effect different launch capabilities would have on the phases of platform construction • Finally a thorough cost analysis for the entire IAA initiative, including the launch costs would give insight into the risks involved with this type of large scale space project
- 30. Sponsor Value Added “This is a powerful tool for commercial space” - Dr. Steven Dam “This work provides a solid basis for pursuing the development of a commercial space structure” - Dr. Keith Taggart
- 31. Acknowledgements We would like to thank our sponsors Dr. Keith Taggart and Dr. Steven Dam of SPEC Innovations as well as our Project Advisor Prof. Dr. Kathryn Laskey.
- 32. Sources DARPA 100 Year Starship: http://www.100yss.org/ http://www.nytimes.com/2011/12/14/science/space/paul-allens-plan-airplanes-as-launching-pads-forrockets.html http://www.aviationweek.com/ http://www.usatoday.com/tech/science/space/story/2011-09-14/NASA-heavy-lift-rocket-spacelaunch/50398568/1 http://www.spacex.com/falcon_heavy.php http://www.usatoday.com/tech/science/space/2010-06-20-asteroid-obama-nasa-plan_N.htm http://articles.cnn.com/keyword/soyuz http://www.thetech.org/exhibits/online/satellite/4/4a/4a.1.html http://www.space.com/15419-asteroid-mining-billionaires-private-spaceflight.html http://www.space.com/8676-white-house-unveils-national-space-policy.html http://earthobservatory.nasa.gov/Features/OrbitsCatalog/
- 33. Questions?
- 34. Backup
- 35. Space Station Concept 52 m 5m 30 m Volume = 3100 m3 • • • • Side View Drawn to scale Genesis of 5m constraint 15 m radius at 3 rpm gives .15g at outer edge 30 m radius at 3 rpm gives .30g at outer edge Top View
- 36. IAA Timeline Phase 1 Phase 2 Graduate Project: Analysis of LEO launch alternatives Undergraduate Project: ROI Architecture for space infrastructure Phase 3 Gather Investments and produce RFPs Phase 4 Proprietary Phase 5 Working Starship capable of interstellar travel
- 37. International Space Station (ISS) • Abbreviated timeline • Construction begins Nov 1998 • First full-time inhabitants arrive Nov 2000 • Key differences • Construction is ongoing • Over 100 space flights on 5 different types of vehicles • Total Cost: $150 billion • • • • • 40 shuttle flights at $1.4 billion each $72 billion ISS budget Europe: $5 billion Japan: $5 billion Canada: $2 billion Assuming 20,000 person-days from 2000-2015 Each person-day costs $7.5 million
- 39. Weights
- 40. Company Weights