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Master Thesis - OUFTI-1

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of other signicant components of the satellite, which is precisely the case of the battery<br />

support.<br />

For availability reasons, the Al − 7075 T 6 alloy was selected [40].<br />

3.7 Thermal control's devices selection<br />

Now, the selection of the dierent devices that perform the thermal control of the<br />

batteries, will be discussed. It should be noted that this selection was realized by the<br />

THER team. Further detail on each of these devices can then be found in reference [35].<br />

In this section, we will only draw a list of these components and, for each of them, the<br />

advantages that led to this particular choice.<br />

3.7.1 Heaters<br />

To maintain the batteries' temperature range in acceptable values, the use of heaters is<br />

necessary. In our case, the heaters are polyimide thermofoil heaters from Minco industry<br />

(illustrated in Figure 3.10) [41].<br />

Figure 3.10: Polyimide thermofoil heater<br />

These heaters present several advantages:<br />

• They are available in a lot of dierent forms and dimensions. In our case, we chose<br />

heaters that had the dimensions closest to the batteries' ones.<br />

• They are lightweight.<br />

• They can be glued directly on the batteries. This particularity is widely used in space<br />

applications.<br />

• They are space-qualied.<br />

55

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