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Sandia progressing to demo stage with supercritical CO2 Brayton-cycle turbines; up to 50% increase in efficiency of thermal-to-electric conversion

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—principal investigator Steve Wright of Sandia’s Advanced Nuclear Concepts group. Test results will illustrate the capability of the concept, particularly its compactness, efficiency and scalability to larger systems. The supercritical properties of carbon dioxide at temperatures above 500 °C and pressures above 7.6