1983-07-11

Regenerable Non-Venting Thermal Control Subsystem for Extravehicular Activity, 1983 831151

With the advent of manned spacecraft opportunities requiring routine and complex extravehicular activities (EVA) a new concept for heat rejection is mandatory in order to realize maximum crewmember productivity. An optimum extravehicular mobility unit (EMU) thermal control system must be capable of successful operation without requiring expendables and without introducing contaminants into the environment, and be readily regenerable.This paper presents a regenerable non-venting thermal control subsystem requirements specification generated for a Shuttle-related EMU, identifies candidate concepts capable of fulfilling the requirements for each thermal control subsystem application, evaluates each candidate concept with respect to the subsystem requirements, and selects the best approach for each requirement.

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