Development of Passively Actuated Thermal Control Valves for Passive Control of Mechanically Pumped Single-Phase Fluid Loops for Space Applications

Birur, Gajanana C.; Prina, M.; Bhandari, Pradeep; Karlmann, Paul; Hernandez, Brenda; Kinter, Bradley; Wilson, P.A.; Bame, David; Ganapathi, Gani B.

doi:10.4271/2008-01-2002

Cited by 11 publications

(6 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The MSL rover utilizes a mechanically pumped, single-phase fluid loop heat rejection system (HRS) to create the backbone for thermal control 8,9,10,11,12,13,14 . The fluid loop uses chlorofluorocarbon-11 (CFC-11) as the working fluid.…”

Section: Rover Thermal Architecturementioning

confidence: 99%

CO2 Insulation for Thermal Control of the Mars Science Laboratory

Bhandari

Karlmann

Anderson

et al. 2011

41st International Conference on Environmental Systems

Self Cite

View full text Add to dashboard Cite

Section: Rover Thermal Architecturementioning

confidence: 99%

CO2 Insulation for Thermal Control of the Mars Science Laboratory

Bhandari

Karlmann

Anderson

et al. 2011

41st International Conference on Environmental Systems

Self Cite

View full text Add to dashboard Cite

“…Papers describing the function of the Rover HRS in detail have been previously published. [1][2][3][4][5][6][7][8] Figures 7 and 8 are schematics showing the HRS system and its major components. In the cold case, the HRS pumps liquid Freon through tubes in hot plate heat exchangers, located on either side of the MMRTG, to pick up radiated waste heat from the MMRTG and bring it into the RAMP.…”

Section: B Brief Description Of Msl Rover Thermal Designmentioning

confidence: 99%

“…One reason for the repeatability of RAMP temperatures over the Mars diurnal is the performance of the passive mixer and splitter valves in the HRS system. 4 The mixer valve is responsible for determining the amount of flow in the hot plates and therefore the amount of heat addition into the HRS Freon fluid. At night, when the RAMP needs heat and the mixer valve goes below -10°C, the valve opens up to allow 97% of the flow to go through the hot plates.…”

Section: Mars Surface Flight Performance Of Hrs and Internal Elementioning

confidence: 99%

Thermal Performance of the Mars Science Laboratory Rover During Mars Surface Operations

Novak

Kempenaar

Liu

et al. 2013

43rd International Conference on Environmental Systems

Self Cite

View full text Add to dashboard Cite

On November 26, 2011, NASA launched a large (900 kg) rover as part of the Mars Science Laboratory (MSL) mission to Mars. Eight months later, on August 5, 2012, the MSL rover (Curiosity) successfully touched down on the surface of Mars. As of the writing of this paper, the rover had completed over 200 Sols of Mars surface operations in the Gale Crater landing site (4.5°S latitude). This paper describes the thermal performance of the MSL Rover during the early part of its two Earth-0.year (670 Sols) prime surface mission. Curiosity landed in Gale Crater during early Spring (Ls=151) in the Southern Hemisphere of Mars. This paper discusses the thermal performance of the rover from landing day (Sol 0) through Summer Solstice (Sol 197) and out to Sol 204. The rover surface thermal design performance was very close to pre-landing predictions. The very successful thermal design allowed a high level of operational power dissipation immediately after landing without overheating and required a minimal amount of survival heating. Early morning operations of cameras and actuators were aided by successful heating activities. MSL rover surface operations thermal experiences are discussed in this paper. Conclusions about the rover surface operations thermal performance are also presented.

show abstract

“…Compared to numerical methods, this approach is proposed to be more authentic for [14,15]. J. Liu et al investigated the start-up processes of mechanically pumped cooling loop and the start-up processes of the evaporator heat sink in a Walk-in Climate Chamber [16].…”

Section: Introductionmentioning

confidence: 99%