Enabling Antenna Systems for Extreme Deep-Space Mission Applications

2007 ◽  
Vol 95 (10) ◽  
pp. 1976-1985 ◽  
Author(s):  
Ron Schulze ◽  
Robert E. Wallis ◽  
Robert K. Stilwell ◽  
Weilun Cheng
Keyword(s):  
Space Mission ◽  
Deep Space ◽  
Antenna Systems

scholarly journals An advance in transfer line chilldown heat transfer of cryogenic propellants in microgravity using microfilm coating for enabling deep space exploration

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
J. N. Chung ◽  
Jun Dong ◽  
Hao Wang ◽  
S. R. Darr ◽  
J. W. Hartwig
Keyword(s):  
Space Exploration ◽  
Fluid Management ◽  
Microgravity Condition ◽  
Space Mission ◽  
Low Earth Orbit ◽  
Earth Orbit ◽  
Deep Space ◽  
Deep Space Exploration ◽  
Quenching Efficiency ◽  
Proper Perspective

AbstractThe extension of human space exploration from a low earth orbit to a high earth orbit, then to Moon, Mars, and possibly asteroids is NASA’s biggest challenge for the new millennium. Integral to this mission is the effective, sufficient, and reliable supply of cryogenic propellant fluids. Therefore, highly energy-efficient thermal-fluid management breakthrough concepts to conserve and minimize the cryogen consumption have become the focus of research and development, especially for the deep space mission to mars. Here we introduce such a concept and demonstrate its feasibility in parabolic flights under a simulated space microgravity condition. We show that by coating the inner surface of a cryogenic propellant transfer pipe with low-thermal conductivity microfilms, the quenching efficiency can be increased up to 176% over that of the traditional bare-surface pipe for the thermal management process of chilling down the transfer pipe. To put this into proper perspective, the much higher efficiency translates into a 65% savings in propellant consumption.

Messenger: Flight Software Design for a Deep Space Mission

2007 ◽  
Author(s):  
David A. Artis ◽  
Brian K. Heggestad ◽  
Christopher J. Krupiarz ◽  
M. Annette Mirantes ◽  
J. Doug Reid
Keyword(s):  
Software Design ◽  
Space Mission ◽  
Deep Space
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