Template reference : 87202587-BID-TAS-001
TAS-I Contribution
to NASA Steckler Phase II
UA-CEAC LGH Project
G. Boscheri
presented by C. Lobascio
1
NASA Steckler II Mid-term Review
July 19th 2012
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Giorgio at work… now a TAS-I employee!
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Presentation Overview
Page 3
• TAS-I Background and Interests
• Contribution for Steckler I Phase
• Contribution for Steckler II Phase
• LGH Equivalent System Mass (ESM) Evaluation:
• Introduction on ESM
• ESM Evaluation for LGH
• Comparison between LGH and Literature data
• Conclusions
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There’s Italy behind the ISS!
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NASA
The Italian Contribution
Page 5
Logistics Modules
Permanent Modules
Node 2
Columbus
Cygnus
PCM
PMM
Node 3
MPLM
Cupola
ATV - ICC
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credit:
19 2012
NASA
th
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50% pressurized
habitable volumes
designed and realized
in TAS – Italia… with
their Life Support
Systems
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NODE 2 HARMONY, October 23, 2007
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Image credit: NASA
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Humans in space… inspiring
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Image
NASA
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2012
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Future:
Human Exploration
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Need recycling and food production
Page 9
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TAS-I Contribution To Steckler I
G. Boscheri at UA-CEAC (Feb-Mar 2010)
LGH HW Upgrade
Build Collaborations
Page 10
LGH MEC Modeling
1600
250
1400
200
1200
z [cm]
PAR [umol m-2 s-1]
190-z [cm]
150
100
1000
800
50
600
0
400
-50
150
100
50
0
y [cm]
-50
-100
-150
0
500
1000
200
x [cm]
C. Lobascio received G. Giacomelli at TAS-I Recyclab
Build Collaborations
NASA Steckler II Mid-term Review
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EDEN HW Upgrade
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TAS-I Contribution To Steckler I
Agrospace WS 2010:
Collaboration Build-up
Page 11
Results
Dissemination
ICES 2011: Steckler I Results
Advances in Space Research: paper accepted
in 2012 on modified plant growth model
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TAS-I Contribution to Steckler II
Upgraded EDEN for Tests Page 12
•
•
•
•
•
•
Introduce space-oriented insight into LGH
design
LGH metric evaluations (ESM)
Study liquid streams (e.g. condensate, etc.)
Upgrade Phase 1 Modified MEC predictive
model
Tests in EDEN plant growth chamber
Demonstrate tele-presence features
Contribution to LGH
upgraded design
Modified MEC Model
Upgrade to be completed
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TAS-I TELEPRESENCE
to be demonstrated
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TAS-I Contribution to Steckler II
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LGH Metric Evaluations
Equivalent System Mass
(ESM)
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Equivalent System Mass (ESM)
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A Tool for Comparison of
Advanced Life Support (ALS) Equipment
ALS Subsystem 1:
Mass = 10 kg
Volume = 15 L
Power = 50 W
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Which one is the
best choice?
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ALS Subsystem 2:
Mass = 8 kg
Volume = 30 L
Power = 70 W
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Equivalent System Mass (ESM)
Page 15
ESM: transform all parameters to an equivalent mass at
launch of the equipment
ESM = Mass
VOLUME
+
MASS
Volume x mass/volume factor
+
Power x mass/power factor
+
POWER
Cooling x mass/cooling factor
+
COOLING
Crew time x mass/ct factor
CREW
TIME
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Plant Growth Chamber ESM
Page 16
• Literature on Plant Growth
Chamber budgets is poor
• Good reference: NASA BVAD
• Mass/Volume/Power/Crew Time
per m2
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ESM Calculation for UA-CEAC LGH
Page 17
1 of the 4 LGH modules ESM calculated (LGH1)
LGH1 unit
17
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ESM Calculation for UA-CEAC LGH
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Mass/volume/power of equipment outside of LGH1 module
common to all 4 modules was considered per ¼
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ESM Calculation for UA-CEAC LGH
Page 19
A mass/power cost factor of 62 kg/kW
was applied as per BVAD, assuming PV
solar energy
PV POWER
GENERATION
Data assumed
for Lunar Surface
Polar Site
A mass/cooling cost factor of 77 kg/kW was
applied as per BVAD, assuming light weight
radiators
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LIGHT
WEIGHT
RADIATOR
COOLING
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ESM Calculation for UA-CEAC LGH
Page 20
Volume of equipment placed inside the LGH1 module not
considered as additional equivalent mass
Mass/volume cost factor already covered by mass of LGH
primary and secondary structures
HATCH &
BULKHEAD
ROOF
ELEMENTS
STRUCTURAL
METAL RINGS
BLADDER
LATERAL
ELEMENTS
CABLE CULTURE
SUPPORTS
FLOOR
ELEMENTS
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ESM Calculation for UA-CEAC LGH
Page 21
Mass/volume cost factor of 13.4 kg/m3 applied to equipment
placed outside the LGH1 module as per BVAD, assuming
Lunar surface site and inflatable unshielded primary structure
(to be covered with regolith)
LUNAR
REGOLITH
UNSHIELDED
INFLATABLE
STRUCTURE
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ESM Calculation for UA-CEAC LGH
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Crew time equivalent mass not considered for the LGH ESM
evaluation
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ESM Comparison with literature data
Page 23
NASA data from BVAD (not optimized food production unit)
LGH data calculated assuming 11.2 m2 of crops (minimum from ICES 2011)
NASA ref.
system
LGH-like
system
Primary Structure Mass [kg/m2]
15.3
23.5
Secondary Structure Mass [kg/m2]
5.7
0.50
Mass [kg/m2]
75.8
43.7
Volume [m3/m2]
1.03
0.105
Power [We/m2]
1.19
0.57
Cooling [Wth/m2]
1.19
0.57
ESM [kgeq/m2]
275
149
Subsystem/Component
Volume shall not be
compared at this
level
Outfitting/equipment
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Much higher LGH
power efficiency
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Conclusions
Page 24
ESM analysis: LGH system viable concept for space
applications
ESM Evaluation results presented to ICES 2012
Next TAS-I Steckler II support activities to follow in
agreement with UA-CEAC needs, depending on:
• Composter activity status
• Telepresence activity status
• Plants modeling activity status
We are enjoying the collaboration!
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NASA Steckler II Mid-term Review
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ESM Calculation for UA-CEAC LGH
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Main Considerations Summary:
• 1 of the 4 LGH modules ESM calculated (LGH1)
• Mass/volume/power of equipment outside of LGH1 module common to all 4
modules considered per ¼
• Mass/power cost factor of 62 kg/kW applied as per BVAD, assuming Lunar
polar site and PV solar energy
• Mass/cooling cost factor of 77 kg/kW applied as per BVAD, assuming Lunar
polar site and light weight radiators
• Volume of equipment placed inside the LGH1 module not considered as
additional equivalent mass, since mass/volume cost factor already covered
by the mass of the LGH primary and secondary structures
• Mass/volume cost factor of 13.4 kg/m3 applied to equipment placed outside
the LGH1 module as per BVAD, assuming Lunar surface site and inflatable
unshielded primary structure (to be covered with regolith)
• Crew time equivalent mass not considered for the LGH ESM evaluation
NASA Steckler II Mid-term Review
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