COOLING CIRCUIT USED IN TURBINE BUCKET COOLING

摘要

PROBLEM TO BE SOLVED: To provide a system and a method feeding a coolant to a turbine bucket (12) of a gas turbine (10). SOLUTION: The system includes: an extraction system (30) constituted so as to extract air from an air flow of a main compressor (1); a feeding circuit (20) having at least a part arranged at the outside of the gas turbine (10) and bonded to the extraction system (30) and constituted so as to transport extraction air from the extraction system (30) to a coolant insertion area (46) as an element of the coolant; and a cooling system (40) arranged closely to the coolant insertion area (46) of the gas turbine (10), bonded to the feeding circuit (20) at an on-board position of the gas turbine (10) and constituted so as to feed the coolant containing the extraction air to the turbine bucket (12). COPYRIGHT: (C)2010,JPO&INPIT