System and method for control of exhaust gas recirculation (egr) utilizing process temperatures

A system, comprising:

• a first temperature sensing system configured to determine a first temperature of a fuel mixture, wherein the fuel mixture comprises an oxidant flow and a fuel flow;
• a second temperature sensing system configured to determine a second temperature of a charge flow, wherein the charge flow comprises the fuel mixture and a recirculated portion of an exhaust gas flow;
• a third temperature sensing system configured to determine a third temperature of the recirculated portion of the exhaust gas flow;
• at least one flow control valve configured to control a ratio of the recirculated portion of the exhaust gas flow to the fuel mixture based at least in part on the first temperature of the fuel mixture, the second temperature of the charge flow, and the third temperature of the recirculated portion of the exhaust gas flow;
• and
• a reciprocating internal combustion engine comprising a reaction zone configured to react the charge flow to form the exhaust gas flow.

A method of operating a reciprocating internal combustion engine, comprising:

• determining a first temperature of a fuel mixture, wherein the fuel mixture comprises an oxidant flow and a fuel flow;
• determining a second temperature of a charge flow, wherein the charge flow comprises the fuel mixture and a recirculated portion of an exhaust gas flow;
• determining a third temperature of the recirculated portion of the exhaust gas flow;
• determining a ratio of the recirculated portion of the exhaust gas flow to the fuel mixture based at least in part on the first temperature, the second temperature, and the third temperature;
• and
• controlling the charge flow to the reciprocating internal combustion engine at least partially based on the ratio, wherein the charge flow reacts within a reaction zone of the reciprocating internal combustion engine.