In-situ atmospheric thermoelectric conversion on Mars
Peer-Reviewed Publication
Updates every hour. Last Updated: 20-Jun-2025 04:10 ET (20-Jun-2025 08:10 GMT/UTC)
The Martian atmosphere has been unexpectedly discovered to be nearly a perfect working medium and unique work patterns of its thermoelectric conversion on Mars have been reported. The inherent advantages of in-situ resource utilization significantly enhance the sustainability of efficient thermoelectric conversion; The inertness, High specific heat capacity, and large molecular characteristics contribute to increased efficiency and power density. Compared to mainstream rare gases, efficiency could improve by 7.4% to 20.0%, and power-density could increase by 1.0% to 14.2%. Notably, conversion efficiency (>22%) can be achieved even at relatively low hot-end temperatures (<973K); Reviewing current space thermoelectric conversion technology, it can achieve higher power-density and efficiency, particularly above 100 kW, it offers significant advantages of lightweight compared to mature technologies; The high-grade waste heat from Martian gas can be utilized for combined oxygen production and heating Mars colony.
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