Computer Science
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008adspr..42.1929d&link_type=abstract
Advances in Space Research, Volume 42, Issue 12, p. 1929-1943.
Computer Science
1
Scientific paper
Plant lighting is a critical issue for cost effectiveness of bioregenerative systems. A plant lighting system using sunlight has been investigated and compared to systems using electrical lighting. Co-generation of electricity and use of in situ resource utilization (ISRU) were also considered. The fixed part of equivalent system mass was found to be reduced by factors of from 3.1 to 3.9, according to the mission assumptions. The time-dependent part of equivalent system mass was reduced by a smaller value, of about 1.05. Cost effectiveness of bioregeneration has been compared to the cost of shipping food. Break-even times for different Lunar and Mars missions were generally in the order of 2 10 years, and were quite sensitive to the assumptions. There is significant scope for future refinement of these values, and work is ongoing.
Drysdale Alan
Nakamura Takashi
Sager John
Wheeler Raymond
Yorio Neil
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