Method for supplying fuel and combustion air to a combustion chamber of a gas turbine combustor and a gas turbine combustor

摘要

PROBLEM TO BE SOLVED: To provide a gas turbine combustor capable of improving reliability of the gas turbine combustor by maintaining combustion stability, even in a case of using hydrogen-containing fuel as fuel, and further capable of reducing an NOx emission amount.SOLUTION: A gas turbine combustor includes: an air supply flow passage constitution member in which plural air supply flow passages for supplying air to a combustion chamber are formed; and plural fuel nozzles that injects fuel to the combustion chamber through the air supply flow passages. In the gas turbine combustor, swirl flow is formed in the air supply flow passage, and contraction flow is made occur in the swirl flow, to thereby supply air and fuel to the combustion chamber.