Appendix E: G5 Thermal Simulation Parameters. (Tze Yee)

G5’s thermal parameters in its sun-tracking orbital orientation is characterised by relatively constant heat flux onto the solar panels, while heat flux from the Earth changes constantly according to G5’s orbital position.

Firstly, there are no thermal loads applied on the +/- X faces of the CubeSat, as they point towards deep space throughout the orbit, with the Sun and Earth assumed to be point sources of heat.

Fig. 1.1.3 (from project introduction) CAD Model of Galassia-5, showing the coordinate system in use

Referencing Fig. 1.1.3, with solar panels deployed in the -Z face,

Fig E-1. Variation of heat flux on the +Y face as a percentage of Earth Albedo and IR (628 W/m2)

Fig E-2. Variation of heat flux on the -Y face as a percentage of Earth Albedo and IR (628 W/m2)

Fig E-3. Variation of heat flux on the +Z face as a percentage of Earth Albedo and IR (628 W/m2)

Fig E-4. Variation of Heat Flux on the -Z face during sun tracking orbit as a percentage of Solar Constant (1361 W/m2)