Gateway PTCS Integrated Thermal Math Model



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2020 International Conference on Environmental Systems


As part of the Integrated Analysis Cycle 4 (IAC4) tasks for NASA’s Gateway Passive Thermal Control Systems (PTCS) team, a simplified thermal model of the Gateway vehicle in its 9:2 Lunar Synodic Resonant Near Rectilinear Halo Orbit (NRHO) was developed within the Thermal Desktop environment. This paper details the methodology and assumptions that were used to model Gateway’s heating rate and orbital environments for the purposes of performing thermal analysis for the Gateway program. Discussion includes determining worst-case hot and worst-case cold environments for Gateway, approximating Gateway’s 9:2 NRHO orbit by a Keplerian orbit for purposes of thermal analysis, and the derivations of solar, albedo, and Lunar IR heating rates experienced by Gateway.


Jonah Smith, Jacobs Engineering, Johnson Space Center (JSC) Engineering Technology and Science (JETS), US
ICES103: Thermal and Environmental Control of Exploration Vehicles and Habitats
The proceedings for the 2020 International Conference on Environmental Systems were published from July 31, 2020. The technical papers were not presented in person due to the inability to hold the event as scheduled in Lisbon, Portugal because of the COVID-19 global pandemic.


Gateway, Passive thermal control systems (PTCS), Near rectilinear halo orbit (NRHO), Integrated Analysis Cycle 4 (IAC4)