Abstract:
A fuel deoxygenation system contactor-separator includes a fuel-gas mixture inlet section, a fuel outlet section, a gas outlet, a spiral contactor-separator, and a valve element. The fuel-gas mixture inlet section has a fuel-gas mixture inlet port. The fuel outlet section has a fuel outlet port. The gas outlet section has a gas outlet port. The spiral contactor-separator conduit has an inner wall and an outer wall that defines a spiral contactor-separator flow passage. The spiral contactor-separator conduit is coupled to, and is in fluid communication with, the fuel-gas mixture inlet section, the fuel outlet section, and the gas outlet section. The valve element is disposed between the fuel outlet port and the gas outlet port and is movable between a first position and a second position.
Abstract:
A node for a low loss passive optical hub is provided. The low loss passive optical hub includes a 1:N-split fiber and a plastic-optical fiber. The 1:N-split fiber has a fused-fractional end and N second-fractional ends. The 1:N-split fiber is formed from N sub-fibers. The N sub-fibers each have a first-fractional end and a second-fractional end. The N first-fractional ends are fused to form the fused-fractional end. The plastic-optical fiber has a first end and a second end. The first end of the plastic-optical fiber is optically coupled to the fused-fractional end of the 1:N-split fiber.
Abstract:
A pressurization system includes a first compressor that receives a ram air, a fan air, or engine air; a first turbine that is on a common shaft with the first compressor and wherein the first turbine receives an engine air; a main heat exchanger downstream of the first compressor and the first turbine; an internal environment suitable for human occupants and downstream of the main heat exchanger; a second turbine downstream of the internal environment; the second turbine may be on the common shaft with the first compressor and first turbine; or a generator downstream of the second turbine; a motor downstream of the generator; and wherein the motor drives the first compressor.
Abstract:
A fuel cell secondary power and thermal management system includes a compressor, a turbine, a first heat exchanger, a proton exchange membrane fuel cell, and a second heat exchanger. The first heat exchanger has first and second air flow circuits and transfers heat between the first and second air flow circuits. The proton exchange membrane fuel cell includes a cathode air flow circuit and an anode hydrogen flow circuit. The cathode air flow circuit receives air from the first air flow circuit. The second heat exchanger has a third and fourth air flow circuits and is configured to transfer heat between the third and fourth air flow circuits. The third air flow circuit receives air from the second air flow circuit outlet. The fourth air flow circuit receives the air discharged from the cathode air flow circuit and supplies air to the turbine.
Abstract:
Hydrogen production systems and methods of producing the same are provided. In an exemplary embodiment, a hydrogen production system comprises a reformer reactor that comprises a reformer reactor wall. A plurality of reformer tubes are interconnected to define a reformer lattice that has a reformer inner flow path and a reformer outer flow path. The plurality of reformer tubes are within the reformer reactor and connected to the reformer reactor wall at a plurality of discrete locations. The reformer lattice defines a combustor side that is one of the reformer inner or outer flow paths, and a reformer side that is the other of the reformer inner or outer flow paths. A reformer catalyst is positioned within the reformer side.
Abstract:
A pyrolysis reactor includes a chamber having an inactive section and an active section. The inactive section is configured to hold an inactive pre-form capable of adhering carbon. The active section is configured to hold an active pre-form capable of adhering carbon. An induction coil is outside of and operatively adjacent the active section, and wherein the active section is configured to pyrolyze a hydrocarbon.
Abstract:
Hydrogen production systems and methods of producing the same are provided. In an exemplary embodiment, a hydrogen production system comprises a reformer reactor that comprises a reformer reactor wall. A plurality of reformer tubes are interconnected to define a reformer lattice that has a reformer inner flow path and a reformer outer flow path. The plurality of reformer tubes are within the reformer reactor and connected to the reformer reactor wall at a plurality of discrete locations. The reformer lattice defines a combustor side that is one of the reformer inner or outer flow paths, and a reformer side that is the other of the reformer inner or outer flow paths. A reformer catalyst is positioned within the reformer side.
Abstract:
A fuel cooled cooling air heat exchanger includes a fuel injector and an airflow body. The fuel injector has a fuel flow passage formed therein that includes a fuel inlet port and a fuel outlet port. The airflow body is coupled to and surrounds at least a portion of the fuel injector. The airflow body has an inner surface that is spaced apart from the fuel injector to define an airflow passage between the airflow body and the fuel injector, and the airflow passage includes an air inlet port and an air outlet port.
Abstract:
A fuel flow control system includes a centrifugal pump, a gas inlet valve, and a control. The centrifugal pump has a fuel inlet, a gas inlet, and an outlet. The gas inlet valve is disposed upstream of the gas inlet and is responsive to valve position commands to move between a closed position, in which inert gas is prevented from flowing into the gas inlet, and a plurality of open positions, in which inert gas may flow into the gas inlet. The control is coupled to the gas inlet valve and is configured to supply the valve position commands to the gas inlet valve to command the gas inlet valve to selectively move to the closed position, such that the centrifugal pump is configured to operate as a fuel pump, or any open position, such that the centrifugal pump is configured to operate as a fuel-gas mixer.
Abstract:
A fuel cell secondary power and thermal management system includes a compressor, a turbine, a first heat exchanger, a proton exchange membrane fuel cell, and a second heat exchanger. The first heat exchanger has first and second air flow circuits and transfers heat between the first and second air flow circuits. The proton exchange membrane fuel cell includes a cathode air flow circuit and an anode hydrogen flow circuit. The cathode air flow circuit receives air from the first air flow circuit. The second heat exchanger has a third and fourth air flow circuits and is configured to transfer heat between the third and fourth air flow circuits. The third air flow circuit receives air from the second air flow circuit outlet. The fourth air flow circuit receives the air discharged from the cathode air flow circuit and supplies air to the turbine.