Abstract: A heat exchange system for exchanging heat with an object may include a centrifugal blower for directing air flow in a downward and an outward direction, a heat sink base positioned to receive the air flow from the centrifugal blower, a diffuser on the heat sink base and in the path of the air flow from the centrifugal blower, the diffuser having vanes that are in thermal communication with the heat sink base that direct the air flow from the blower outward over the heat sink base, and a thermoelectric device having a low temperature side and a high temperature side, where the thermoelectric device is in thermal communication with the heat sink base on the low temperature side and the high temperature side.

Abstract: An environmental control system includes a primary heat exchanger operable to transfer heat from an air source to a refrigerant in a generator flow and output an air flow. An ejector is operable to produce an intermediate refrigerant flow based on receiving the generator flow as a motive fluid and drawing a vapor refrigerant flow as a suction fluid. A refrigerant condenser is operable to convert the intermediate refrigerant flow to a liquid refrigerant flow. A pump is operable to provide the refrigerant to the primary heat exchanger from a portion of the liquid refrigerant flow. An expansion device is operable to expand the liquid refrigerant flow prior to entering an evaporator. The evaporator is operable to convert the liquid refrigerant flow to the vapor refrigerant flow and produce a cooled evaporator air flow output based on the air flow.

Abstract: Fuel tank inerting systems and methods for an aircraft. The systems include a fuel tank, a first reactant source fluidly connected to the fuel tank, the first source arranged to receive fuel from the fuel tank, a second reactant source, a catalytic reactor arranged to receive a first reactant from the first source and a second reactant from the second source to generate an inert gas that is supplied to the fuel tank to fill a ullage space of the fuel tank, and a heating duct thermally connected to the catalytic reactor and arranged in thermal communication with the first source to provide heat to the first source to generate the first reactant.

Abstract: A process for densifying an annular porous structure comprising flowing a reactant gas into an inner diameter (ID) volume and through an ID surface of the annular porous structure, flowing the reactant gas through an outer diameter (OD) surface of the annular porous structure and into an OD volume, flowing the reactant gas from the OD volume through the OD surface of the annular porous structure, and flowing the reactant gas through an ID surface of the annular porous structure and into the ID volume.

Abstract: An on-board aircraft dried inert gas system includes a source inert gas containing water, an air cycle or vapor cycle cooling system, and a heat exchanger condenser. The heat exchanger condenser has a heat absorption side in thermal communication with the air cycle or vapor cycle cooling system. The heat exchanger condenser has a heat rejection side that receives the inert gas containing water and outputs dried inert gas.

Abstract: A seat control unit (SCU) for use in an aircraft can include a base that has a wireless charger configured to transmit a wireless power signal and a case at least partially enclosing the wireless charger. The SCU can also include a control device having a remote controller configured to wirelessly control a system of the aircraft and a battery coupled to the remote controller and configured to store electrical energy. The control device can also include a wireless receiver configured to receive the wireless power signal from the wireless charger and transmit associated power to the battery and an outer casing at least partially enclosing at least one of the remote controller or the wireless receiver.

Abstract: A environmental control system (ECS) for an aircraft includes a primary heat exchanger configured to receive bleed air from a turbine compressor of the aircraft and a secondary heat exchanger having an input configured to receive a flow from the primary heat exchanger and a secondary heat exchanger output. The ECS also includes a thermoelectric condensing device having an input in fluid communication with the output of the secondary heat exchanger and also having a thermoelectric condensing device output.

Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body, and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. At least two of the second flow channels are adjacent each other and are separated from each other by at least one common fin, wherein the at least one common fin includes an opening defined therein for permitting flow between the adjacent second flow channels.

Abstract: A system and method for enhancing a diffusion limited CVI/CVD process is provided. The system may densify a porous structure by flowing a reactant gas around the porous structure. A mass flow controller may be configured to pulse the flow rate of the reactant gas around the porous structure. The mass flow controller may pulse the flow rate from a nominal flow rate to a first flow rate. The mass flow controller may pulse the first flow rate back to the nominal flow rate or to a second flow rate. The mass flow controller may pulse the flow rate between the nominal flow rate, the first flow rate, and the second flow rate, as desired.

Abstract: A process for densifying an annular porous structure comprising flowing a reactant gas into an inner diameter (ID) volume and through an ID surface of the annular porous structure, flowing the reactant gas through an outer diameter (OD) surface of the annular porous structure and into an OD volume, flowing the reactant gas from the OD volume through the OD surface of the annular porous structure, and flowing the reactant gas through an ID surface of the annular porous structure and into the ID volume.

Abstract: A method for manufacturing a heat exchanger includes aligning a plurality of first flow openings and second flow openings defined in a plurality of sheets, and attaching the plurality of sheets together to form a plurality of first flow channels from the aligned first flow openings and a plurality of second flow channels from the aligned second flow openings. Attaching the plurality of sheets together includes brazing the sheets together.

Abstract: A heat exchanger includes a heat exchanger body. A first set of flow channels is defined in the heat exchanger body extending axially with respect to a first flow axis, wherein the first set of the flow channels forms a first flow circuit. A second set of flow channels is defined in the heat exchanger body extending axially with respect to a second flow axis. The second set of the flow channels forms a second flow circuit that is in fluid isolation from the first flow circuit. Each flow channel is fluidly isolated from the other flow channels. At least some of the flow channels have cross-sections that vary along their respective flow axis.

Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body; and a plurality of second flow channels defined in the body. The second flow channels are fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.

Abstract: A heat exchanger includes a body and a plurality of elliptical flow channels defined in the body, the elliptical flow channels defining an elliptical cross-sectional flow area, and a plurality of non-elliptical flow channels defined in the body and interspersed between the elliptical flow channels, the non-elliptical flow channels having a non-elliptical cross-sectional flow area.

Abstract: A heat exchanger includes a body, a plurality of first flow channels defined in the body, and a plurality of second flow channels defined in the body, the second flow channels fluidly isolated from the first flow channels, wherein at least one of the first flow channels or the second flow channels have a changing characteristic along a direction of flow within the first flow channels or the second flow channels.

Abstract: A heat exchanger includes a body made of polymer, a plurality of first flow channels defined in the body, and a plurality of second flow channels defined in the body. The second flow channels fluidly isolated from the first flow channels. The first flow channels and second flow channels are arranged in a checkerboard pattern.

Abstract: A header for a heat exchanger having a first phase with a first pipe connector defining a first flow path and a second pipe connector defining a second flow path fluidly isolated from the first flow path. A second phase in which the first and second flow paths are merged while maintaining fluid isolation of the two flow paths wherein in the second phase the first flow path comprises at least one first layer and the second flow path comprises at least one second layer. A third phase in which the at least one first layer and the at least one second layer are substantially overlapping and wherein the third phase is configured to fluidly connect the first flow path to a first section of a core of a heat exchanger and the second flow path to a second section of the core different from the first section.

Abstract: A seat control unit (SCU) for use in an aircraft can include a base that has a wireless charger configured to transmit a wireless power signal and a case at least partially enclosing the wireless charger. The SCU can also include a control device having a remote controller configured to wirelessly control a system of the aircraft and a battery coupled to the remote controller and configured to store electrical energy. The control device can also include a wireless receiver configured to receive the wireless power signal from the wireless charger and transmit associated power to the battery and an outer casing at least partially enclosing at least one of the remote controller or the wireless receiver.

Abstract: A heat exchange system for exchanging heat with an object may include a centrifugal blower for directing air flow in a downward and an outward direction, a heat sink base positioned to receive the air flow from the centrifugal blower, a diffuser on the heat sink base and in the path of the air flow from the centrifugal blower, the diffuser having vanes that are in thermal communication with the heat sink base that direct the air flow from the blower outward over the heat sink base, and a thermoelectric device having a low temperature side and a high temperature side, where the thermoelectric device is in thermal communication with the heat sink base on the low temperature side and the high temperature side.

Abstract: A fire resistant wood veneer structure may include a base layer of a non-decorative wood veneer and a layer of non-metallic highly thermal conductivity material adhesively bonded to the non-decorative wood veneer. The finished veneer structure includes a layer of decorative wood veneer adhesively bonded to the non-metallic wood veneer layer.