Gas-fired combined-cycle power plant design and technology

A.D. Rao,     University of California, USA


A combined cycle consists of combining two power cycles in series to obtain a high overall thermal efficiency, significantly higher than the individual efficiencies of the two cycles making up the combined cycle. In the combined cycle discussed in this chapter, a Brayton cycle or gas turbine is utilized for the topping cycle and a steam Rankine cycle for the bottoming cycle. Combined cycles come in a variety of sizes, depending on the size and number of gas turbines utilized, and may range from less than 10 MW to in excess of 500 MW while using a single gas turbine. In addition to having high thermal efficiencies, outstanding ...

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