Computer Science – Performance
Scientific paper
Feb 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993stms.conf..143m&link_type=abstract
In NASA. Langley Research Center, Space Transportation Materials and Structures Technology Workshop. Volume 2: Proceedings p 143
Computer Science
Performance
Aerobraking, Nuclear Electric Propulsion, Propulsion System Configurations, Propulsion System Performance, Space Exploration, Cosmic Rays, High Temperature Environments, Launch Windows, Radiation Dosage, Safety Factors, Spacecrews
Scientific paper
Nuclear thermal and nuclear electric propulsion systems will enable and/or enhance important space exploration missions to the moon and Mars. Current efforts are addressing certain research areas, although NASA and DOE still have much work yet to do. Relative to chemical systems, nuclear thermal propulsion offers the potential of reduced vehicle weight, wider launch windows. and shorter transit times, even without aerobrakes. This would improve crew safety by reducing their exposure to cosmic radiation. Advanced materials and structures will be an important resource in responding to the challenges posed by safety and test facility requirements, environmental concerns, high temperature fuels and the high radiation, hot hydrogen environment within nuclear thermal propulsion systems. Nuclear electric propulsion (NEP) has its own distinct set of advantages relative to chemical systems. These include low resupply mass, the availability of large amounts of onboard electric power for other uses besides propulsion, improved launch windows, and the ability to share technology with surface power systems. Development efforts for NEP reactors will emphasize long life operation of compact designs. This will require designs that provide high fuel burnup and high temperature operation along with personnel and environmental safety.
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