Gas turbine facility

The gas turbine facility (10) of the embodiment includes a combustor (20) combusting fuel and oxidant, a turbine (21) rotated by combustion gas, a heat exchanger (23) cooling the combustion gas, a heat exchanger (24) removing water vapor from the combustion gas which passed through the heat exchanger (23) to regenerate dry working gas, and a compressor (25) compressing the dry working gas until it becomes supercritical fluid. Further, the gas turbine facility (10) includes a pipe (42) guiding a part of the dry working gas from the compressor (25) to the combustor (20) via a variable speed pump (27), the heat exchanger (23), a pipe (44) exhausting a part of the dry working gas to the outside, and a pipe (45) introducing a remaining part of the dry working gas exhausted from the compressor (25) through a bypass flow rate regulating valve (30) into a pipe (40) coupling an outlet of the turbine (21) and an inlet of the heat exchanger (23).