METHOD AND SYSTEM FOR IMPROVING EFFICIENCY OF SIMPLE CYCLE GAS TURBINE SYSTEM WITH CLOSED CIRCUIT FUEL HEATING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine system that may enhance the overall thermal performance of the gas turbine system by increasing the temperature of the fuel before it is burned.SOLUTION: A heating system includes a heat transfer subsystem 20 disposed in a gas turbine system 15 exhaust device. First heat exchange subsystems 25, 30, 35 are coupled to a first fuel source and the heat transfer subsystem. Each of the first heat exchange subsystems is provided with a control component for controlling a flow of a working fluid through the first heat exchange subsystems. A second heat exchange subsystem may be coupled to a second fuel source and the heat transfer subsystem. The second heat exchange subsystem is provided with a control component for controlling a flow of the working fluid through the second exchange subsystem. A subsystem 40 for controlling the temperature of the working fluid is also provided.