Nonventing Thermal and Humidity Control for EVA Suits

Future manned space exploration missions will require space suits with capabilities beyond the current state of the art. Portable Life Support Systems for these future space suits are extremely challenging, since they must maintain healthy and comfortable conditions inside the suit for long-duration missions while minimizing weight and venting no consumables. We propose an innovative system for thermal and humidity control in a space suit that is simple, rugged, lightweight, and nonventing. In Phase I we will prove the feasibility of our approach by analysis and laboratory testing of a proof-of-concept unit to identify the optimum configuration. We will produce a conceptual design for a full-size system. In Phase II we will develop fabrication methods to produce a full-size prototype, then demonstrate operation in a prototypical environment.

There are numerous commercial and military applications for the proposed technology. Commercial applications include untethered personal cooling systems for law enforcement, nuclear/chemical plant workers, and heat-sensitive multiple sclerosis patients. Military applications include personal cooling systems for soldiers or marines wearing chem/bio protective gear, body armor, EOD suits, or level-A HAZMAT suits.

The proposed system can be used in any future space suit, with applications that include lunar and Mars exploration or constructing/servicing next-generation space telescopes while maintaining a clean environment. The basic technology can also be used to provide rugged, nonventing thermal and humidity control for spacecraft, manned rovers, and habitats.

This is early/mid-stage (TRL 3) — the most realistic path in is NASA SBIR/STTR, which funds small businesses and research institutions to develop technology aligned with NASA's needs (equity-free, phased funding). Check whether a current SBIR/STTR solicitation topic overlaps with this project's technology area, or contact the project directly (above) to ask.

None of these are guaranteed paths for this specific project — TechPort itself doesn't have an "apply" button. Reaching out to the contact(s) above with a specific question is usually the fastest way to find out what's actually open.