1989-07-01

Human Life Support During Interplanetary Travel and Domicile Part I: System Approach 891431

A quantitative comparison of the merits/demerits of storage vs. regeneration of essential supplies for long duration extraterrestrial manned missions requires detailed life support systems analyses. This is the first part of a series of papers highlighting the importance of mission-driven system definition and assessment for extraterrestrial human life support. In this part, rationale and methodology for adopting the systems approachis discussed. A top-down hierarchical structurefor conceptual modeling of life support systems is also presented. The necessity for validation of all data utilized in any system assessment study is briefly discussed.

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