Patent ID: 8534073

Claim:
A system comprising: a turbomachine comprising: an inlet system for channeling an inlet fluid towards a compressor section of the turbomachine, wherein the inlet fluid comprises and airstream and an exhaust stream; an exhaust section; and a combustion system for combusting a fuel and the airstream; and an exhaust gas recirculation (EGR) system that fluidly connects and exhaust stack, located downstream of the exhaust section, and the inlet system, wherein the EGR system comprises: at least one EGR skid; an EGR exhaust damper connected at an inlet portion of the EGR system and near the exhaust stack, such that the EGR exhaust damper comprises structure that divides the exhaust stream exiting the exhaust section into the portion that enters the inlet section and a portion of the exhaust stream that discharges through the exhaust stack; an EGR inlet damper connected near a discharge portion of the EGR system and located near a portion of the inlet system fluidly connected to a weather hood, such that modulation of the EGR inlet damper allows the exhaust stream to enter the inlet section and mix with inlet air flowing into the inlet system from the weather hood, wherein the mixture of the inlet air and exhaust stream flows through a filter system; and at least one heat exchanging device that is fluidly connected to the combustion system and positioned within the EGR system; wherein the at least one EGR system is configured to: receive the exhaust stream at a first temperature from an exhaust section of a turbomachine; wherein the exhaust stream comprises constituents at a first level; allows the exhaust stream to enter the EGR skid, which reduces the constituents to a second level; allows the exhaust stream to exit the EGR skid at a second temperature and enter the inlet system; and wherein the at least one heat exchanging device receives the fuel at a first temperature and discharges the fuel at a second higher temperature while a portion of the exhaust stream flows through a portion of the at least one heat exchanging device, wherein the exhaust stream enters the portion of the at least one heat exchanging device at a first temperature and exits at a second lower temperature.