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Central tower systems using the Brayton cycle

R. Buck, S. Giuliano, and R. Uhlig     Deutsches Zentrum für Luft-und Raumfahrt (DLR), Stuttgart, Germany

Abstract

Solar-hybrid gas-turbine (SHGT) systems are a promising alternative to conventional solar thermal power plants, as gas turbine systems are cost effective and can reach higher efficiencies than steam cycles. Therefore, SHGT systems offer the potential for future reduction of solar electricity cost, while providing full dispatchability with the integrated hybrid option. Additional advantages are the reduced water consumption, the integrated hybrid option, fast system response, and simple plant control.

Past developments in SHGT systems are summarized, and the actual status of the technology ...

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