5.1.2 Energy Conversion Devices. 7 5.1.3 Radiators and Thermal Management 73 5.1.4 Distributed Control and Environmental Protection 5 5.1.5 Distributed Power Management 5.1.6 Electric Propulsion Devices............... 79 5.2 Concept Combination.. 81 6.0 Filtering and Screening of Concept Architectures. 82 6.1 Identification of Evaluation Criteria By Mission Phase 82 6.1.1 Development and Qualification................. 83 6.1.2 Transportation and Launch..... 84 6.1.3 Mission Operations..................... 5 6.1.4 Future Missions.. 85 6.1.5 Criteria Excluded. 86 6.2 Mission Planning.......... 87 6.3 Critical Relationships and Application of Criteria.... 88 6.3.1 NEPP System Level Considerations................... 88 6.3.2 Nuclear Reactor Subsystem....................... 89 6.3.3 Energy Conversion Subsystem................ 93 6.3.4 Radiator and Thermal Management Subsystem........ 97 6.3.5 Control and Environmental Protection Subsystem 100 6.3.6 Power Management Subsystem........................ 101 6.3.7 Electric Propulsion Subsystem ................. 103 6.4 Summary of Filtering.............. 104 6.5 Screening of Candidate Architectures............ 。。 105 7.0 Results,Recommendations and Conclusions....... 107 7.1 Discussion of Results.... 107 7.2 Recommendations for Future Work. 109 7.2.1 Further Concept Refinement............ 109 7.2.2 Introduction of Multidisciplinary Design 110 7.3 Concluding Remarks....... 112 8.0 References… 113 85.1.2 Energy Conversion Devices............................................................................. 67 5.1.3 Radiators and Thermal Management............................................................... 73 5.1.4 Distributed Control and Environmental Protection ......................................... 75 5.1.5 Distributed Power Management ...................................................................... 77 5.1.6 Electric Propulsion Devices............................................................................. 79 5.2 Concept Combination ............................................................................................. 81 6.0 Filtering and Screening of Concept Architectures...................................................... 82 6.1 Identification of Evaluation Criteria By Mission Phase ......................................... 82 6.1.1 Development and Qualification ....................................................................... 83 6.1.2 Transportation and Launch .............................................................................. 84 6.1.3 Mission Operations.......................................................................................... 85 6.1.4 Future Missions................................................................................................ 85 6.1.5 Criteria Excluded ............................................................................................. 86 6.2 Mission Planning .................................................................................................... 87 6.3 Critical Relationships and Application of Criteria.................................................. 88 6.3.1 NEPP System Level Considerations................................................................ 88 6.3.2 Nuclear Reactor Subsystem............................................................................. 89 6.3.3 Energy Conversion Subsystem ........................................................................ 93 6.3.4 Radiator and Thermal Management Subsystem .............................................. 97 6.3.5 Control and Environmental Protection Subsystem........................................ 100 6.3.6 Power Management Subsystem..................................................................... 101 6.3.7 Electric Propulsion Subsystem ...................................................................... 103 6.4 Summary of Filtering............................................................................................ 104 6.5 Screening of Candidate Architectures .................................................................. 105 7.0 Results, Recommendations and Conclusions ........................................................... 107 7.1 Discussion of Results............................................................................................ 107 7.2 Recommendations for Future Work...................................................................... 109 7.2.1 Further Concept Refinement.......................................................................... 109 7.2.2 Introduction of Multidisciplinary Design ...................................................... 110 7.3 Concluding Remarks............................................................................................. 112 8.0 References................................................................................................................. 113 8