Abstract: A system includes a pressure exchanger (PX) including a housing and configured to exchange pressure between a first fluid and a second fluid. The system further includes a bearing valve fluidly coupled to the housing of the PX and configured to provide the first fluid to the housing. The system further includes a controller to cause a first adjustment of a first flowrate of the first fluid into the PX based on a target flowrate of first fluid into the PX and the first flowrate. The controller is further to cause a second adjustment of a second flowrate of the second fluid into the PX based on the first flowrate and the second flowrate.

Abstract: A test system is provided for a component of an engine. This test system includes a combustor test section and an air system. The combustor test section includes a fuel injector, an ignitor and a combustion chamber. The fuel injector is configured to direct fuel into the combustion chamber for mixing with cooled air. The ignitor is configured to ignite a mixture of the fuel and the cooled air within the combustion chamber. The air system is configured to deliver the cooled air to the combustor test section. The air system includes a compressed air source, a cryogenic cooling system and an air circuit. The cryogenic cooling system includes a cryogenic heat exchanger. The air circuit extends through the cryogenic heat exchanger and fluidly couples the compressed air source to the combustor test section.

Abstract: A system includes a pressure exchanger (PX), a first heat exchanger, and a second heat exchanger. The PX is configured to receive a first fluid and a second fluid, exchange pressure between the first fluid and the second fluid, and output the first fluid and the second fluid. The first heat exchanger is configured to receive the first fluid from a first gas cooler and the second fluid from a second gas cooler, exchange first heat between the first fluid and the second fluid, and output the first fluid and the second fluid. The second heat exchanger is configured to receive heat exchanger output from the first heat exchanger and evaporator output from an evaporator, exchange second heat between the heat exchanger output and the evaporator output, and provide the heat exchanger output to the PX and the evaporator output to the compressor.

Abstract: A system includes a pressure exchanger (PX) and a condenser. An outlet of the condenser is fluidly coupled to a first inlet of the PX. The system further includes a generator assembly configured to be conditionally coupled to the PX. Coupling the generator assembly to the PX causes a turbine to convert rotational energy of the PX to electrical energy.

Abstract: A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide the first fluid to the PX and provide corresponding thermal energy from the first fluid to a first corresponding environment. The system further includes a first evaporator and a second evaporator each configured to provide corresponding energy from second and third corresponding environments to portions of the first fluid output from the PX. The system further includes a first compressor configured to increase pressure of first output from the first evaporator and a second compressor configured to increase pressure of second output from the second evaporator.

Abstract: A dielectric material is provided. The dielectric material includes at least one layer of a substantially continuous phase material. The material is selected from the group consisting of an organic, organometallic, or combination thereof in which the substantially continuous phase material has delocalized electrons.

Abstract: Embodiments of the present disclosure relate to method and apparatus for detecting grid islanding in a grid supporting voltage source converter. The method includes modulating an output voltage at an output of the grid supporting voltage source converter; determining at least one grid parameter at an input to the grid supporting voltage source converter; and detecting the grid islanding for the grid supporting voltage source converter based on the at least one grid parameter.

Abstract: A system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a first ejector to receive a first gas and increase pressure of the first gas to form the second fluid at the second pressure. The first ejector is further to provide the second fluid at the second pressure to the PX.

Abstract: An imaging device may include a first illumination port to output first light having a first illumination distribution at a target to illuminate the target, a second illumination port to output second light having a second illumination distribution at the target to illuminate the target, the second illumination distribution being substantially similar to the first illumination distribution at the target, the second illumination port being spaced apart from the first illumination port, the first and second illumination distributions being simultaneously provided to the target and overlapping at the target. The illumination from the first and second ports may be matched to a same aspect ratio and field of view coverage as the imaging field of view.

Abstract: A system includes a pressure exchanger (PX) including a housing and configured to exchange pressure between a first fluid and a second fluid. The system further includes a bearing valve fluidly coupled to the housing of the PX and configured to provide the first fluid to the housing. The system further includes a controller to cause a first adjustment of a first flowrate of the first fluid into the PX based on a target flowrate of first fluid into the PX and the first flowrate. The controller is further to cause a second adjustment of a second flowrate of the second fluid into the PX based on the first flowrate and the second flowrate.

Abstract: Embodiments of the present disclosure relate to parallel 3-level inverter without midpoint connection. The parallel 3-level inverter includes a plurality of parallel converters coupled in parallel between a common DC bus and a common AC output, wherein each of the plurality of parallel converters comprises a midpoint and the midpoints of the plurality of parallel converters are disconnected from each other.

Abstract: Embodiments of present disclosure relate to apparatus and method for flux management in the ZISC based UPS system. The apparatus comprises: a first determining unit configured to determine a first offset flux on a series reactor in the ZISC based UPS system when power quality events occur in a grid connected to the ZISC based UPS system and the ZISC based UPS system operates in a grid-connected mode; and a first resetting unit configured to provide synthetic impedance damping to the series reactor to reset the first offset flux.

Abstract: A system includes an isobaric pressure exchanger (IPX) configured to exchange pressure between a first fluid and a second fluid. The IPX includes a rotor configured to rotate about a longitudinal axis of the rotor. The rotor forms rotor ports arranged substantially symmetrically around the longitudinal axis at a distal end of the rotor. The IPX further includes an end cover configured to be disposed at the first distal end of the rotor. The end cover forms end cover ports. The rotor ports are arranged for hydraulic communication with the end cover ports. The IPX further includes an insert disposed between two of the rotor ports or between two of the end cover ports.

Abstract: A system includes a pressure exchanger (PX) configured to receive a first fluid via a first inlet and a second fluid via a second inlet. The PX is to exchange pressure between the first fluid and the second fluid and provide the first fluid at a first outlet and the second fluid at a second outlet. The system further includes a first sensor to provide first sensor data associated with the first fluid prior to the first fluid entering the first inlet and a second sensor to provide second sensor data associated with the second fluid prior to the second fluid entering the second inlet. The system further includes a controller to receive user input and cause a first adjustment of the flowrate of the first fluid into the first inlet and cause a second adjustment of the flowrate of the second fluid into the second inlet.

Abstract: A wearable haptic navigation system for obscured visibility environments, the wearable haptic navigation system including: a wearable haptic component, in one alternative a body covering suite; and a mapping data collector and processor in communication with the wearable haptic component; wherein the mapping data collector and processor collects data related to a path traversed by a user of the wearable haptic navigation system and generates at least one proprioception suggestion signal to the wearable haptic component providing the user with a suggested safe egress path and/or a suggested safe body position.

Abstract: A carrier for a plurality of containers includes an upper web having a plurality of upper web apertures, each for receiving a chime and a neck of one of the containers therethrough. Each upper web aperture has a plurality of tabs formed at an inside edge thereof. Each tab is configured for bending upward when contacting the chime of one of the containers. A lower web has a plurality of lower web apertures, each for receiving a body of one of the containers therethrough. A side web connects the upper web with the lower web, and may be formed together with the upper web and the lower web as a single piece, or into two separate portions that may be adhered or otherwise fastened together.

Abstract: A fluid handling system includes a pressure exchanger (PX) configured to receive a first fluid at a first pressure and a second fluid at a second pressure and exchange pressure between the first fluid and the second fluid. The system further includes a condenser configured to provide corresponding thermal energy from the first fluid to a corresponding environment. The system further includes a receiver to receive the first fluid output by the PX. The receiver forms a chamber to separate the first fluid into a first gas and a first liquid. The system further includes a first booster to increase pressure of a portion of the first gas to form the second fluid at the second pressure and provide the second fluid at the second pressure to the PX.

Abstract: A system for packaging two or more containers with a paperboard carrier having two or more apertures. Each aperture has a plurality of tabs formed at an inside edge thereof that bend upward when contacting a lower edge of a chime of one of the containers. The system includes a platen having apertures for pressing the carrier down uniformly onto the containers and carrier supports configured for maintaining the carrier in a flat configuration as the platen presses the carrier onto the containers substantially simultaneously. Some embodiments of the system include a manual applicator, while other embodiments include a semi-automatic apparatus that utilize linear actuators to facilitate loading the carriers and applying the carriers to a group of containers. Methods of use are also disclosed.