Thermal Transport Internal Heat Sources External Insulation COM

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Thermal Transport Internal Heat Sources External Insulation COM GL Locomotion Phase Lead 1 AAE

Thermal Transport Internal Heat Sources External Insulation COM GL Locomotion Phase Lead 1 AAE 450 Spring 2009 [John Dixon] [COM]

Thermal Considerations § Assumptions: – Solar Panels Reflect Unused Solar Energy Completely – Thermal

Thermal Considerations § Assumptions: – Solar Panels Reflect Unused Solar Energy Completely – Thermal Blanket keeps Energy Transfer through body to 0 J/s • Above includes MLI comprised of Kapton (or Teflon) / Silver Lined Reflective Surface, Kapton Insulation (with scrim separation) – Thermal Heat Sinks radiate to Coldest Possible Surface – Steady State Conduction 2 AAE 450 Spring 2009 [John Dixon] [COM]

Insulation/Heat Sink § Copper Heat Emission – q/t = 730. 432 J/s (from emissivity

Insulation/Heat Sink § Copper Heat Emission – q/t = 730. 432 J/s (from emissivity of Copper) – Cu mass = 6. 08 kg • One heat vane traveling to each side of the rover • @max CPU Operating Temp § Multi-Layer Insulation (MLI) – Insulation mass= 0. 898 kg § Total Thermal Control Mass: 6. 98 kg 3 AAE 450 Spring 2009 [John Dixon] [COM]

Thermal Conductivity Graphs Fig. 1 Heat Vein 4 Fig. 2 Heat Slab AAE 450

Thermal Conductivity Graphs Fig. 1 Heat Vein 4 Fig. 2 Heat Slab AAE 450 Spring 2009 [John Dixon] [COM]

Copper Sink Properties § Copper Slab – 0. 03 m thick X 0. 065

Copper Sink Properties § Copper Slab – 0. 03 m thick X 0. 065 m wide X 0. 08 m long – Volume: 0. 000156 m^3 § Copper Vein – 0. 02 m height X 0. 065 m wide X [0. 001: 0. 372]m thick – Volume(max distance) = 0. 000677 m^3 AAE 450 Spring 2009 [John Dixon] [COM]

Bibliography § § 5 Hyder, A. K. ; Wiley, R. L. ; Halpert, G.

Bibliography § § 5 Hyder, A. K. ; Wiley, R. L. ; Halpert, G. ; Flood, D. J. ; Sabripour, S. Spacecraft Power Technologies. (pp. 415 -449). null. Online version available at: http: //knovel. com/web/portal/browse/display? _EXT_KNOVEL_DISPLAY_bookid=1310&Vertical. ID=0 Watson, Richard D. ; Chapman, Kirby S. Radiant Heating and Cooling Handbook. (pp. 5. 1 -5. 13). Mc. Graw-Hill. Online version available at: http: //knovel. com/web/portal/browse/display? _EXT_KNOVEL_DISPLAY_bookid=1631&Vertical. ID=0 Griffin, Michael D. ; French, James R. Space Vehicle Design (2 nd Edition). (pp. 9. 2 - 9. 5). American Institute of Aeronautics and Astronautics. Online version available at: http: //knovel. com/web/portal/browse/display? _EXT_KNOVEL_DISPLAY_bookid=1597&Vertical. ID=0 Steinberg, Dave S. Cooling Techniques for Electronic Equipment (2 nd Edition). John Wiley & Sons. Online version available at: http: //knovel. com/web/portal/browse/display? _EXT_KNOVEL_DISPLAY_bookid=2196&Vertical. ID=0 AAE 450 Spring 2009 [John Dixon] [COM]