Abstract: A plug for regulating a flow of gas in a system is disclosed. The plug includes a housing disposed on a temperature boundary in a system. The housing defines a passage for flowing gas therethrough. The plug further includes at least one pressure-actuated valve disposed in the passage and movable between an open position and a closed position. The at least one pressure-actuated valve moves from the open position to the closed position as the pressure of the gas increases and moves from the closed position to the open position as the pressure of the gas decreases.

Abstract: A gas turbine inlet system includes a first passage that delivers inlet air to a compressor, a second passage that delivers fuel to a combustor, and a heat pump that transfers heat from the inlet air to the fuel by consuming electric power. The heat transfer causes the turbine inlet air temperature to drop and fuel temperature to increase with favorable effects on both turbine output and heat rate.

Abstract: A turbomachine includes a compressor section, a turbine section operatively connected to the compressor section, a combustor fluidly connected between the compressor section and the turbine section, and a carbon dioxide (CO2) extraction system fluidly connected to the combustor. The CO2 extraction system includes a CO2 separator. The CO2 separator separates a CO2 laden inlet gas stream into a first gas stream and a second gas stream. The first gas stream is substantially free of CO2 and the second gas stream comprises CO2. The first gas stream is directed to the combustor and the second gas stream is passed through a discharge conduit.

Abstract: A plug for regulating a flow of gas in a system is disclosed. The plug includes a housing disposed on a temperature boundary in a system. The housing defines a passage for flowing gas therethrough. The plug further includes at least one pressure-actuated valve disposed in the passage and movable between an open position and a closed position. The at least one pressure-actuated valve moves from the open position to the closed position as the pressure of the gas increases and moves from the closed position to the open position as the pressure of the gas decreases.