Abstract: A power generation system includes a fuel cell including an anode that generates a tail gas. The system also includes a hydrocarbon fuel reforming system that mixes a hydrocarbon fuel with the fuel cell tail gas and to convert the hydrocarbon fuel and fuel tail gas into a reformed fuel stream including CO2. The reforming system further splits the reformed fuel stream into a first portion and a second portion. The system further includes a CO2 removal system coupled in flow communication with the reforming system. The system also includes a first reformed fuel path coupled to the reforming system. The first path channels the first portion of the reformed fuel stream to an anode inlet. The system further includes a second reformed fuel path coupled to the reforming system. The second path channels the second portion of the reformed fuel stream to the CO2 removal system.

Abstract: A flow control assembly for controlling cooling flow of a turbine engine is provided. The flow control assembly includes a first flow control device having a first sidewall and a second sidewall. The first sidewall is coupled to a compressor vane and is configured to define a first flow path from a compressor to a turbine vane. The second sidewall is coupled to a compressor vane and is configured to define a second flow path from the compressor to a turbine blade. A second flow control device is coupled to the compressor and includes an orifice device coupled to the compressor vane and a meter device coupled to the orifice, wherein the orifice is configured to direct a cooling flow to the meter device. A controller is configured to control the meter device to facilitate regulating the cooling flow into at least one of the first flow path and the second flow path.

Abstract: A power generation system utilizing a fuel cell is described. The system includes a fuel cell having an anode configured to generate a tail gas. The anode includes an inlet and an outlet. The system further includes a fuel path configured to divert a first portion of the anode tail gas to the inlet of the anode; and a second portion of the anode tail gas to a reciprocating engine. The associated reciprocating engine is at least partially powered by the second portion of the anode tail-gas. Another embodiment of the invention is directed to a power generation system that includes the anode and an external fuel reforming system, along with a gas splitting mechanism to divide the reformed fuel into two streams. One stream is directed back to the fuel cell anode, while another stream is used to completely or partially power an external or internal combustion engine.

Abstract: A flow control assembly for controlling cooling flow of a turbine engine is provided. The flow control assembly includes a first flow control device having a first sidewall and a second sidewall. The first sidewall is coupled to a compressor vane and is configured to define a first flow path from a compressor to a turbine vane. The second sidewall is coupled to a compressor vane and is configured to define a second flow path from the compressor to a turbine blade. A second flow control device is coupled to the compressor and includes an orifice device coupled to the compressor vane and a meter device coupled to the orifice, wherein the orifice is configured to direct a cooling flow to the meter device. A controller is configured to control the meter device to facilitate regulating the cooling flow into at least one of the first flow path and the second flow path.

Abstract: A system and method are provided for boosting overall performance of a fuel cell while simultaneously separating a nearly pure stream of CO2 for sequestration or for use in generating electrical power to further increase overall efficiency of the process. The system and method employ a heat exchanger system configured to generate a stream of fuel that is returned to the inlet of the fuel cell anode with a higher molar concentration of carbon monoxide (CO) and hydrogen (H2) fuel than was initially present in the fuel cell anode outlet.

Abstract: A power generation system includes a fuel cell including an anode that generates a tail gas. The system also includes a hydrocarbon fuel reforming system that mixes a hydrocarbon fuel with the fuel cell tail gas and to convert the hydrocarbon fuel and fuel tail gas into a reformed fuel stream including CO2. The reforming system further splits the reformed fuel stream into a first portion and a second portion. The system further includes a CO2 removal system coupled in flow communication with the reforming system. The system also includes a first reformed fuel path coupled to the reforming system. The first path channels the first portion of the reformed fuel stream to an anode inlet. The system further includes a second reformed fuel path coupled to the reforming system. The second path channels the second portion of the reformed fuel stream to the CO2 removal system.

Abstract: A system and method are provided for boosting overall performance of a fuel cell while simultaneously separating a nearly pure stream of CO2 for sequestration or for use in generating electrical power to further increase overall efficiency of the process. The system and method employ a heat exchanger system configured to generate a stream of fuel that is returned to the inlet of the fuel cell anode with a higher molar concentration of carbon monoxide (CO) and hydrogen (H2) fuel than was initially present in the fuel cell anode outlet.

Abstract: A combined cycle fuel cell includes a fuel cell such as a solid-oxide fuel cell (SOFC) comprising an anode that generates a tail gas. A hydrocarbon fuel reforming system that mixes a hydrocarbon fuel with the fuel cell tail gas downstream of the fuel cell partly or fully converts the hydrocarbon fuel into hydrogen (H2) and carbon monoxide (CO). A fuel path diverts a first portion of the reformed fuel to the inlet of the fuel cell anode. A cooler such as an Organic Rankine cycle (ORC) is optionally configured to remove heat from a residual portion of the reformed fuel and to deliver the cooled residual portion of the reformed fuel to a bottoming cycle that may be an external or internal combustion engine such as a reciprocating gas engine or gas turbine that is driven in response to the cooled residual portion of the reformed fuel.