TAILIEUCHUNG - Renewable Energy Part 2

Tham khảo tài liệu 'renewable energy part 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Development of Space-Based Solar Power 29 geostationary belt is so great that beams diverge beyond the coherence and power concentration needed for a weapon. The beam is likely to be designed to require a pilot beam transmitted from the rectenna site. Absent the pilot signal the system can be programmed to go into an incoherent mode. Concerns may also be addressed through an inspection regime. The likelihood of the beam wandering over a city is extremely low. Even if it occurred it would not be a hazard. Wireless energy transfer by laser beam represents a different set of requirements. To achieve comparable efficiency the beam must be more intense. The clouds in the atmosphere will reduce the transfer. The intense beam may produce a hazardous level to be avoided by aircraft and satellites. Still for the application to military power supply it may be a manageable method. At present the United States has very limited capabilities to build large structures very large aperture antennas or very high power systems in orbit. The capability to control and maneuver these systems in space must be developed and demonstrated. Presently the ability to translate large mass between Earth orbits will be required for deployment SBSP. Eventually the capability for in-space manufacturing and construction or in-situ space resource utilization may be developed but at this point it is a challenge that should not be incorporated into the program. One critical item to be demonstrated is capability for beamed power and application to propulsion of large space systems. The Thunderstorm Solar Power Satellite TSPS is a concept for interacting with thunderstorms to prevent formation of tornadoes. TSPS benefits are saving lives and reducing property. These benefits are not as sensitive to the system economics as the commercial solar power satellite and justify government investment in space solar power. The TSPS can develop and demonstrate the technology and operations critical to understanding

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