Patent ID: 7536252
Filing Date: 2009-05-19
Classification: F02C,Y02E

Abstract:
1. A method of controlling an exhaust stream, wherein the exhaust stream is generated by a turbomachine; the method comprising: providing at least one exhaust gas recirculation (EGR) system comprising: at least one EGR flow conditioning device, a constituent reduction system, at least one flow control device; receiving a target EGR fraction comprising the portion of the exhaust stream within an inlet fluid, wherein the inlet fluid enters the inlet section of the turbomachine; determining a target level of at least one constituent from the target EGR fraction; determining a current level of the at least one constituent; determining whether the current level of the at least one constituent is within a constituent range; and adjusting an EGR rate of the exhaust stream if the at least one constituent is outside of the constituent range.