ESA Document - Emits - ESA
ESA Document - Emits - ESA ESA Document - Emits - ESA
s Figure 3-10: Complete propulsion module HMM Assessment Study Report: CDF-20(A) February 2004 page 136 of 422 Figure 3-11: Backbone Structure Figure 3-12 shows all the propulsion modules and Figure 3-13 shows the global dimensions. Within the TMI and the MOI, a staging approach is followed to increase the efficiency of the system. The TEI has only one stage with one stack and is placed inside the backbone structure of the MOI. The TMI has three serial stages; each stage composed of four stacks. The MOI has two parallel stages, here each stage consists of two stacks.
s Trans Mars Injection (three stages, twelve stacks) Mars Orbit Insertion (two stages, four stacks) Figure 3-12: All three propulsion systems Figure 3-13: Global dimensions of the propulsion module HMM Assessment Study Report: CDF-20(A) February 2004 page 137 of 422 Trans Earth Injection (one stage, one stack) The front of the backbone structure is through a conical adapter structure attached to the back node of the THM. Inside this structure, five oxygen tanks and one nitrogen tank are accommodated (gasses are part of consumables), each with a diameter of 1.3 m (see Figure 3-14). Figure 3-14: Conical adapter with tanks (consumables)
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s<br />
Trans Mars Injection<br />
(three stages, twelve stacks)<br />
Mars Orbit Insertion<br />
(two stages, four stacks)<br />
Figure 3-12: All three propulsion systems<br />
Figure 3-13: Global dimensions of the propulsion module<br />
HMM<br />
Assessment Study<br />
Report: CDF-20(A)<br />
February 2004<br />
page 137 of 422<br />
Trans Earth Injection<br />
(one stage, one stack)<br />
The front of the backbone structure is through a conical adapter structure attached to the back<br />
node of the THM. Inside this structure, five oxygen tanks and one nitrogen tank are<br />
accommodated (gasses are part of consumables), each with a diameter of 1.3 m (see Figure<br />
3-14).<br />
Figure 3-14: Conical adapter with tanks (consumables)
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