1976 JSC Evaluation Of SPS Vol2

Cover	1
TItle Page	3
Table of Contents	5
I. Introduction	9
II. Conclusions	15
III. Program Requirements	19
A. Projected Energy Demand	19
B. Implementation Scenarios	19
IV. Power Station	23
A. System Analysis	23
1. Efficiencies	23
2 MPTS/MCRS Analysis	25
3. Orbit Considerations	53
4. Configurations	83
5. Mass Properties	98
B. Solar Energy Collection System	109
1. Solar Array	109
a. SOLAR CELL TECHNOLOGY	109
b. Solar Cell Blankets and Concentrators	152
c. ALTERNATE ENERGY CONVERSION CONCEPTS	165
2. Power Distribution	204
3. Structure	212
4. Attitude and Orbit Control	232
5. Instrumentation, Control and Communications	250
6. Maintenance Station	251
C. Microwave Power Transmission System	253
1. Antenna Array	253
2. Microwave Generators	261
b. Radio Frequency Interference	266
3. Subarray	270
4. Phasing of Antenna	278
5. Antenna Pointing Control	294
6. Power Distribution	298
7. Structure	309
8. ROTARY JOINT	315
9. Thermal Control	331
D. Microwave Reception and Conversion System	336
1.Rectenna	336
a. Rectenna	336
b. Structural Support and Ground Preparation	349
2 Grid Interface	351
E. Operations	359
F. Unit Costs	362
Appendix: Comparison Study of Thermal Engine (Brayton Cycle) and Photovoltaic SPS Design Concepts	365
V. SPS Construction and Maintenance System	389
A. System Requirements and Analysis	389
APPENDIX V-A-1: Construction Studies	414
APPENDIX V-A-2: Consideration of Joining Processes for SPS Construction	422
APPENDIX V-A-3: Proposed Construction Experiment for Shuttle OFT Flight	428
B. Construction Base	450
V-B-1 Construction and Manufacturing Facilities	458
V-B-2 Orbital Construction and Support Equipment	458
V-B-3 Logistics Facility	459
V-B-4 Integration Management Facility	459
V-B-5 Crew Habitation Facilities	460
V-B-6 Construction Base Configuration Evaluation	460
C. Construction Operations	468
APPENDIX V-C-1: SPS Orbital Construction Organization	491
VI. Space Transportation System	495
A. System Requirements	495
B. Heavy Lift Launch Vehicle (HLLV)	507
1. Summary	507
2. Modified Single Stage to Orbit Heavy Lift Launch Vehicle	510
3. Winged Launch Vehicles	533
4. Two Stage Ballistic Launch Vehicle	606
C. Personnel and Priority Cargo Launch Vehicle (PLV)	632
D. Cargo Orbit Transfer Vehicle	644
E. Personnel Orbital Transfer Vehicle (POTV)	709
VI. F. Summary of Projected Transportation System Characteristics	731
VII. Integrated Operations	766
A.Systems Requirements Analysis	766
B. Program Model	766
C. Mission Management Concept	768
D. Mission Management Functions	777
E. Key Considerations and Areas For Further Investigation	780
VIII. Environmental Considerations	784
A. Methodology	784
B. Environmental Questions	800
C. Comparisons with Conventional Systems	813
IX. Manufacturing Capacity, Natural Resources, Transportation and Energy Considerations	815
A. Requirements	815
B. Manufacturing Capacity	815
C. Natural Resources	816
D. Surface Transportation	817
E. Energy Payback	819
APPENDIX - Material Summary	823
X. Program Development Plan	860
A. Program Phasing	860
B. System Definition and Exploratory Technology Phase	860
C. Technology Advancement Phase	860
D. System Development	866
E. Program Costs	866
XI. Program Cost and Econmovic Analysis	868
A.Methodology	868
B. SPS Cost	868
C. Comparison With Conventional and Other Advanced Systems	874
D. Summary Remarks	883
APPENDIX XI-A: Terrestrial Solar Power	885
APPENDIX XI-B: Cost Sensitivity Analysis	900

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