This paper describes the engineering effort involved in the selection of the topping cogeneration cycle for an industrial cogeneration plant. Fuel profitability of a cogeneration plant is defined and analyzed, and used as a tool for the selection of the cogeneration cycle. The conceptual design of a gas turbine cogeneration plant is described, which includes selection of a gas turbine generator and other major plant components, equipment sizing and the typical control system layout. The paper provides tools to the industrial plant manager/engineer for the selection of the most profitable alternative of the cogeneration system.

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