| 摘要 |
PURPOSE:To reduce generation of NOx at the time of low load operation in a gas turbine. CONSTITUTION:An exhaust gas recirculation(EGR) control valve 56 is interposed in an EGR passage 55 of connecting an exhaust passage 53 in the downstream of a turbine to an intake passage 54 in the upstream of a compressor. An accelerator opening detecting means 57, temperature detecting means 58 for directly or indirectly detecting an inlet air temperature of a combustor 51 and an EGR control means 59 for controlling an opening of the EGR control valve 56, so that the above-mentioned detected temperature obtains a predetermined target temperature when an accelerator opening is in a preset value or less, are provided. |
