POWER GENERATION SYSTEM HAVING COMPRESSOR CREATING EXCESS AIR FLOW FOR SCR UNIT

摘要

A power generation system (100) includes a turbine component (104), an integral compressor (106) and a combustor (108) to which air from the integral compressor and fuel are supplied, the integral compressor having a flow capacity greater than an intake capacity of at least one of the combustor and the turbine component, creating an excess air flow (200). A first control valve system (202) controls flow of the excess air flow (200) along an excess air flow path (250) to an exhaust (172) of the turbine component (104). A selective catalytic reduction (SCR) unit (168) may be coupled to an exhaust (172) of the turbine component, the SCR unit receiving the exhaust and the excess air flow. An eductor (252) may be positioned in the excess air flow path (250) for using the excess air flow as a motive force to augment the excess air flow with additional air (254).