Closed Ecological System

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Closed Ecological System

A system that provides for the maintenance of life in an isolated living chamber through complete reutilization of the material available, in particular, by means of a cycle wherein exhaled carbon dioxide, urine, and other waste matter are converted chemically or by photosynthesis into oxygen, water, and food. Compare controlled-leakage system, open system.

References

This article is based on NASA's Dictionary of Technical Terms for Aerospace Use