Buscar
Mostrando ítems 1-10 de 30
Thermal Modeling of Mars Ground for Surface Missions
(47th International Conference on Environmental Systems, 2017-07-16)
Thermal analysis packages are capable of including ground temperature effects for orbital and surface thermal analyses. In particular, Thermal Desktop offers the option of specifying ground temperatures as a function of ...
Detailed Design Process of MLI Blankets for the Europa Clipper Mission
(2020 International Conference on Environmental Systems, 2020-07-31)
Multi-layer insulation (MLI) blanket design is sometimes considered more of an art form than an exact science and often benefits from past first-hand experience. Therefore, best practices or lessons learned are often ...
Novel Concept for Detection of a Fluid Flow Fault in a Pumped Fluid Heat Rejection System
(49th International Conference on Environmental Systems, 2019-07-07)
A pumped fluid heat rejection system (HRS) requires continuous flow of the working fluid to ensure that the components controlled by the HRS stay within their allowable temperature limits. An interruption of flow could ...
A Dual Multilayer Insulation Blanket Concept to Radically Reduce Heat Loss From Thermally Controlled Spacecraft and Instruments
(48th International Conference on Environmental Systems, 2018-07-08)
Deep space missions typically utilize solar arrays as their power source. At large distances from the Sun (e.g., Jupiter/Saturn), the solar flux is less than 4% that at Earth. This requires very large solar arrays to ...
Development of Two-Phase Mechanically Pumped Fluid Loop with Large Isothermal Evaporator using Porous Wick Structure
(47th International Conference on Environmental Systems, 2017-07-16)
"In recent years, space exploration is improving. Therefore, requirements for the thermal control system of the electric devices on spacecraft are getting higher. The requirements are accommodating high heat generation, ...
Europa Clipper Passive Thermal Control Valve Test and Analysis
(2020 International Conference on Environmental Systems, 2020-07-31)
Europa Clipper spacecraft utilizes passive thermal control valves (TCV) in an active thermal control system to maintain spacecraft component temperatures within their allowable limits. The single-phase mechanically pumped ...
Europa Clipper Thermal Control Design
(48th International Conference on Environmental Systems, 2018-07-08)
This paper details the design developments of the Europa Clipper spacecraft thermal control system and its primary element the Heat Redistribution System (HRS). The Europa Clipper spacecraft will launch in the early 2020s ...
Thermal Control of Mars Sample in Orbit & During Ascent from Mars
(46th International Conference on Environmental Systems, 2016-07-10)
Although NASA has no official plans at this time for a mission to return samples from Mars, the Program Formulation Office of the Mars Exploration Program sponsors ongoing mission concept studies, systems analyses, and ...
Water and Helium Leak Rate Requirements for a Mars Sample Sealing System
(45th International Conference on Environmental Systems, 2015-07-12)
NASA is proposing to launch a rover to Mars in 2020 to collect and cache samples of Martian rocks and soil for possible return to Earth on a future mission. It is highly likely that water would be present in some of the ...
Thermal Design, Analysis, and Sensitivity of a Sample Tube on the Martian Surface
(47th International Conference on Environmental Systems, 2017-07-16)
NASA will launch a rover to Mars in 2020 to collect and cache samples of Martian rocks and regolith for potential return to Earth on a future mission. The collected samples will be placed in tubes, hermetically sealed, and ...