Applications of power beaming from space-based nuclear power stations. [Laser beaming to airplanes; microwave beaming to ground]
Power beaming from space-based reactor systems is examined using an advanced compact, lightweight Rotating Bed Reactor (RBR). Closed Brayton power conversion efficiencies in the range of 30 to 40% can be achieved with turbines, with reactor exit temperatures on the order of 2000/sup 0/K and a liquid drop radiator to reject heat at temperatures of approx. 500/sup 0/K. Higher RBR coolant temperatures (up to approx. 3000/sup 0/K) are possible, but gains in power conversion efficiency are minimal, due to lower expander efficiency (e.g., a MHD generator). Two power beaming applications are examined - laser beaming to airplanes and microwave beaming to fixed ground receivers. Use of the RBR greatly reduces system weight and cost, as compared to solar power sources. Payback times are a few years at present prices for power and airplane fuel.
- Research Organization:
- Washington Univ., Seattle (USA). Aerospace Research Lab.; Brookhaven National Lab., Upton, NY (USA)
- DOE Contract Number:
- AC02-76CH00016
- OSTI ID:
- 6348237
- Report Number(s):
- BNL-29582; CONF-810812-27; ON: DE81025078
- Country of Publication:
- United States
- Language:
- English
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NESDPS Office of Nuclear Energy Space and Defense Power Systems
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