Numerical Analysis and Experimental Validation of the Thermal Subsytem of Alainsat-1

• Main Authors: Seyedzadeh, Ameereh, Aasim, Wan Faris Aizat Wan, Okasha, Mohamed, Jallad, Abdul Halim, Sulaeman, Erwin
• Format: Conference Proceeding
• Language: English
• Subjects: Aerospace electronics; Analytical models; CubeSat; Siemens NX's 3D Space Systems Thermal module; Simulation; Steady State and Transient Analysis; Steady-state; Thermal analysis; Thermal conductivity; Thermal vacuum chamber (TVAC); Three-dimensional displays; Transient analysis
• ISSN: 2153-7003
• DOI: 10.1109/IGARSS52108.2023.10283430

CubeSats are cost-effective nanosatellites constructed using commercial-off-the-shelf (COTS) components, which are not specifically designed for space applications. Given the severe space environment where CubeSats are exposed to multiple heat sources such as solar radiation, albedo, and earth infrared radiation (IR), pre-launch testing of these components is of paramount importance. This study presents a simulation of the thermal behavior of AlAinSat-1 under extreme temperatures, utilizing Siemens NX's 3D Space Systems Thermal module. The simulation process, which spanned from idealization to the assignment of appropriate assumptions and boundary conditions for each case, was conducted under both steady state and transient conditions. The results suggest that AlAinSat-1 can withstand the extreme thermal environment during its mission. However, these findings, being heavily reliant on theoretical assumptions and calculations, necessitate validation through actual experimental testing. Consequently, a series of thermal tests using a thermal vacuum chamber (TVAC) are scheduled in to confirm AlAinSat-1's survivability in the harsh space environment. These tests are crucial to prevent any potential in-orbit failures.