Lunar dust capture using novel multi-plexed inertial filter

Lunar dust mitigation is hard. COTS filters tend to clog, and small particles are hard to capture. NASA developed a new method of filtration (patent pending) with amazing results for liquid capture – complete capture in 5-50 micron size range with low pressure drop. We intend to test a version of this filter for lunar dust.

For all filtration problems, there are three main performance parameters: (1) capture efficiency (2) containment capacity and (3) pressure drop. Current technology to address #1 Lunar Dust Mitigation is limited to filters with a large dP once saturated (HEPA filters) that must be regularly replaced or (2) heavy machinery that requires volume and power to operate (cyclone separator). HEO gaps 07-40 Surface dust mitigation via passive technology and 07-41 Surface dust mitigation via active technology. The “thirsty corkscrew” is a relatively thin and flat structure that can be placed in a flow path to function like a filter. Though it will experience significantly less pressure drop when capacity is reached due to the “open” nature of the design. Water droplet capture efficiency of >99.99% demonstrated, hoping to see translated into similar results for dust. Data will be gathered to further investigate filter capacity for dust.

This is early/mid-stage (TRL 5) — 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.

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