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
MARCH 4, 2011
This configuration uses gas-foil bearings and includes a small turbine (red). In its final configuration, the TAC uses gas foil bearings, a high speed permanent magnet motor/alternator and labyrinth gas seals to reduce the rotor cavity pressure. Turbo-alternator-shaft design for the SNL S-CO 2 test loop. Source: Wright et al.
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