ESA Document - Emits - ESA

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Schedule in hours for the most active day
Activity Astronaut
1 2 3
Sleep 8.00 8.00 8.00
Pre- and post sleep 1.50 1.50 1.50
Leisure activities 2.00 2.00 2.00
Personal hygiene 1.00 1.00 1.00
Eating 1.50 1.50 1.50
Exercise 0.00 0.00 0.00
Station keeping 1.88 1.88 1.88
Laboratory activities 7.10 7.10 7.10
Metabolic Cost of EVA
EVA mission tasks 0.70 0.70 0.70
EMU donning/doffing 0.15 0.15 0.15
Egress/ingress 0.06 0.06 0.06
Pre-EVA setup & post EVA EMU care 0.12 0.12 0.12
TOTAL TIME (24hrs) 24 24 24
Figure 4-23: Crew activity schedule during Martian surface stay
HMM
Assessment Study
Report: CDF-20(A)
February 2004
page 271 of 422
Note that for the energy requirements computation that a 24-hour day has been used instead of a
Martian day of 24 hours and 40 min. The error introduced is less than 3% and is covered by the
contingencies.
Based on the energy expenditure, the metabolic needs and products by the crew have been
estimated and are shown in Figure 4-24:
Per day Per mission
Energy consumption (W*h) 2868.9 106147
Energy consumption (J) 10327860.0 382130820
Oxygen consumption (m3) 0.5 19
Oxygen consumption (kg) 0.7 27
Drinking water (m3) 0.0 0
Drinking water (kg) 8.5 315
Dry food (kg) 2.0 75
Carbon dioxide production (m3) 0.4 15
Metabolic water production (kg) 0.3 11
Urine production (kg) 4.3 158
Faecal liquids(kg) 0.2 9
Insensible water (kg) 4.3 158
Total solid waste production
Faeces (kg) 0.2 8
HYGIENE WATER (kg) 3 111
GREY WATER (KG) 7 269
ADDITONAL SOLID INORGANIC TRASH 0 11
Figure 4-24: Metabolic needs and products of the crew