METHOD OF OPERATING A GAS TURBINE AND GAS TURBINE

摘要

A gas turbine system comprises a gas turbine (5) having a low pressure compression stage (50) and a high pressure compression stage (60), a combustion chamber (70), and an expansion stage (80) connected to the combustion chamber (70). The low pressure compression stage (50) and the high pressure compression stage (60) are connected with each other via an intercooling stage (20), wherein the low pressure compressed air stream (55] from the low pressure compression stage (50) is chilled to an intercooling temperature that is lower than the ambient temperature of the air source from which the air stream (45) was supplied to the low pressure compression stage (50) of the gas turbine (5).