Safe affordable fission engine
Safe Affordable Fission Engine (SAFE) are NASA's small experimental nuclear fission reactors for electricity production in space. Most known is the SAFE-400 reactor producing 400 kW thermal power, giving 100 kW of electric energy using a Brayton cycle gas turbine. The fuel is uranium nitride in a core of 381 pins clad with rhenium. Three fuel pins surround a molybdenum-sodium heatpipe that transports the heat to a heatpipe-gas heat exchanger. This is called a Heatpipe Power System.[1][2] The reactor is about 50 centimetres (20 in) tall, 30 centimetres (12 in) across and weighs about 1,200 kilograms (2,600 lb). It was developed at the Los Alamos National Laboratory and the Marshall Space Flight Center under the lead of Dave Poston.[3] A smaller reactor called SAFE-30 was made first.[4]
The project is funded with discretionary money in the lab's budged and done mostly outside the researchers normal work.[5]
See also
- Systems Nuclear Auxiliary Power Program and SNAP-10A, that flew in 1965
- SP-100
References
- ^ David I., Poston (2002). "Design and analysis of the SAFE-400 space fission reactor". In ohamed S. El-Genk and Mary J. Bragg (ed.). SPACE TECHNOLOGY AND APPLICATIONS INTERNATIONAL FORUM- STAIF 2002. Vol. 608. AIP. pp. 578–588. doi:10.1063/1.1449775.
{{cite conference}}: Cite has empty unknown parameters:|month=and|conferenceurl=(help); Unknown parameter|booktitle=ignored (|book-title=suggested) (help); Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Blanchard, James P. (2003). "Stretching the Boundaries of Nuclear Technology". Eighth Annual Symposium on Frontiers of Engineering: Reports on Leading-Edge Engineering from the 2002 NAE Symposium on Frontiers of Engineering. National Academies Press. p. 84. ISBN 0309087325. Retrieved 2009-02-24.
{{cite conference}}: Unknown parameter|booktitle=ignored (|book-title=suggested) (help) Also at nae.edu - ^ Poonawala, Qurratulain (2004-07-24). "Nuclear adventure: the next evolutionary step in space exploration". Dawn Sci-tech World. Retrieved 2009-02-23.
- ^ Poston, David (2001). "The Safe Affordable Fission Engine (SAFE) Test Series" (PDF). NASA/JPL/MSFC/UAH 12th Annual Advanced Space Propulsion Workshop April 3 - 5, 2001. Archived from the original (PDF) on 2005-03-21. Retrieved 2009-02-23.
{{cite web}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ Spotts, Peter N. (2002-02-28). "NASA eyes nuclear rockets to reach deep space". The Christian Science Monitor. Retrieved 2009-02-24.