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

Green Car Congress

There is a tremendous amount of industrial and scientific interest in supercritical CO 2 systems for power generation using all potential heat sources including solar, geothermal, fossil fuel, biofuel and nuclear. A second loop, located at Sandia in Albuquerque, is used to research the unusual issues of compression, bearings, seals, and friction that exist near the critical point, where the carbon dioxide has the density of liquid but otherwise has many of the properties of a gas.

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