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Completed TRL 4 (started at 2, targeting 4)
The goal is to demonstrate high fidelity mission waste simulant conversion with a proprietary DC plasma torch, a different approach from industry which uses higher powers not acceptable on the smaller scale of space missions. The baseline carrier gas will be 100% air, then the feasibility of alternate carrier gases (CO2, N2, and hydrocarbon product gas recirculation) will be evaluated. A CO2 carrier gas is ideal since it is a byproduct of human metabolic activity (available on ISS), and 95% of the Mars atmosphere. A semi-closed loop system could be achieved if the product gases produced by the trash conversion itself could be used as a carrier gas. As this this technology advances it would eventually be infused into future AES projects. The next steps would be to demonstrate up to three down-selected technologies in the combustion integration rack for microgravity experiments on board the ISS, and then build a flight unit for converting mission waste into gas to reduce volume, odor, and provide sterilization of waste. This technology is needed to advance waste processing for vent gases on board space vehicles and space habitats for long duration missions. The ultimate goal would be to demonstrate up to three down-selected technologies in the combustion integration rack for microgravity experiments on board the ISS, followed by building a flight unit for converting mission waste into gas to reduce volume, odor, and provide sterilization of waste. Such a technology could eventually create a closed loop The goal is to demonstrate high fidelity mission waste simulant conversion with a proprietary DC plasma torch, a different approach from industry which uses higher powers not acceptable on the smaller scale of space missions. The baseline carrier gas will be 100% air, then the feasibility of alternate carrier gases (CO2, N2, and hydrocarbon product gas recirculation) will be evaluated. A CO2 carrier gas is ideal since it is a byproduct of human metabolic activity (available on ISS), and 95% of the Mars atmosphere. A semi-closed loop system could be achieved if the product gases produced by the trash conversion itself could be used as a carrier gas. As this this technology advances it would eventually be infused into future AES projects. The next steps would be to demonstrate up to three down-selected technologies in the combustion integration rack for microgravity experiments on board the ISS, and then build a flight unit for converting mission waste into gas to reduce volume, odor, and provide sterilization of waste. sustainability path.
Demonstrate plasma assisted waste conversion to gas as a possible down-select technology for waste processing on board space vehicles and space habitats for long duration missions. Reducing waste to an inert gas for venting, or repurposing, is a necessary means of maintaining human presence on any extraterrestrial land mass, cislunar station, or long-duration mission. NASA does not currently have a determined mature waste conversion system (or down selected technology) for future long duration or habitat missions
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This is early/mid-stage (TRL 4) — 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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