Patent ID: 6606848
Filing Date: 2003-08-19
Classification: F01K,Y02E,Y02P

Abstract:
A combined cycle power plant system comprising:(a) at least one gas turbine (GT); (b) at least one steam turbine (ST); (c) at least one substantially continuously fired heat recovery steam generator (HRSG); and (d) at least one control suitably adapted for maintaining a substantially optimum HRSG exhaust temperature, and having inputs comprising HRSG exhaust temperature, and having outputs comprising operational control of the rate of feedwater flow through an HRSG; â€ƒwherein said power plant is operated predominantly as a Rankine Cycle power generation system utilizing said HRSG(s) along with said firing to supply high energy steam via a bottoming cycle to said ST(s), with a Brayton Cycle topping cycle being utilized to generate baseline power demand with said GT(s); and said power plant utilizes a substantially single pressure bottoming cycle that generates high energy steam to drive said ST(s).