ESA Document - Emits - ESA

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HMM
Assessment Study
Report: CDF-20(A)
February 2004
page 150 of 422
Figure 3-25: Baseline design personal area - drawing
The large exercise facility with the centrifuge (personal zone) is located in the back end of the
main cylinder. It is spinning around the circumferential axis of the spacecraft. The other space is
used for translation of the crew and for the life support system, which requires approximately 55
m 3 . This space has an unusual orientation, which is neither Skylab-type nor ISS-type due to the
spinning centrifuge. It is used by building the LSS into this part because of its easy access for
maintenance. Furthermore it has a large volume, which could be used by the astronauts in their
leisure time for some zero-g experiments, as on Skylab. The next adjacent compartment is the
workstation and maintenance level (personal zone), which has a Skylab-type orientation due to
the dimensions of the module. For efficient use of space this looks like the most adequate
orientation.
In this area one treadmill, a medical, a science and a greenhouse rack and three workstations
with computers are located. In addition each astronaut is equipped with a laptop computer.
Figure 3-26 shows the next compartment, which has light hatches, houses the crew quarters
(private zone). It has a 50-cm thick protection wall all around the compartment, stuffed with
consumables and water for radiation protection in case of a solar particle event. This storm-
shelter protects the crew for up to two days from such a solar storm. Inside are six crew quarters
equally distributed with a translation path wide enough for large packets to be passed through.