Regenerable Non-Venting Thermal Control Subsystem for Extravehicular Activity, 1986

1986 ◽  
Author(s):  
George J. Roebelen ◽  
Stephen A. Bayes ◽  
B. Mike Lawson
Keyword(s):  
Thermal Control ◽  
Extravehicular Activity ◽  
Control Subsystem

Regenerable Non-Venting Thermal Control Subsystem for Extravehicular Activity, 1983

1983 ◽  
Author(s):  
George J. Roebelen ◽  
Kenneth J. Dresser ◽  
Edward W. Hodgson ◽  
Chin Lin
Keyword(s):  
Thermal Control ◽  
Extravehicular Activity ◽  
Control Subsystem

Thermal Control Subsystem for Free Flying Satellites

1982 ◽  
Author(s):  
Bob J. Jackson ◽  
David Rogers
Keyword(s):  
Thermal Control ◽  
Control Subsystem

scholarly journals Prospects for Implementing Variable Emittance Thermal Control of Space Suits on the Martian Surface

2016 ◽  
Vol 8 (4) ◽  
Author(s):  
Christopher J. Massina ◽  
David M. Klaus
Keyword(s):  
Environmental Parameters ◽  
Landing Site ◽  
Thermal Control ◽  
Control Mechanisms ◽  
Martian Surface ◽  
Solar Absorption ◽  
Heat Rejection ◽  
Extravehicular Activity ◽  
Space Suits ◽  
Rejection Mechanism

Extravehicular activity (EVA) will play an important role as humans begin exploring Mars, which, in turn, will drive the need for new enabling technologies. For example, space suit heat rejection is currently achieved through the sublimation of ice water to the vacuum of space, a mechanism widely regarded as not feasible for use in Martian environment pressure ranges. As such, new, more robust thermal control mechanisms are needed for use under these conditions. Here, we evaluate the potential of utilizing a full suit, variable emittance radiator as the primary heat rejection mechanism during Martian surface EVAs. Diurnal and seasonal environment variations are considered for a latitude 27.5°S Martian surface exploration site. Surface environmental parameters were generated using the same methods used in the initial selection of the Mars Science Laboratory's initial landing site. This evaluation provides theoretical emittance setting requirements to evaluate the potential of the system's performance in a Mars environment. Parametric variations include metabolic rate, wind speed, radiator solar absorption, and total radiator area. The results showed that this thermal control architecture is capable of dissipating a standard nominal EVA metabolic load of 300 W in all the conditions with the exception of summer noon hours, where a supplemental heat rejection mechanism with a 250 W capacity must be included. These results can be used to identify when conditions are most favorable for conducting EVAs. The full suit, variable emittance radiator architecture provides a viable means of EVA thermal control on the Martian surface.

scholarly journals Performance Evaluation of Thermal Control Subsystem of EOS-D Ver.1.0 from In-orbit Telemetry Data

2016 ◽  
Vol 44 (1) ◽  
pp. 70-79
Author(s):  
Jin-Soo Chang ◽  
Jong-Un Kim ◽  
Myung-Seok Kang ◽  
Ee-Eul Kim ◽  
Seung-Uk Yang ◽  
...  
Keyword(s):  
Performance Evaluation ◽  
Thermal Control ◽  
Telemetry Data ◽  
Control Subsystem
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