Abstract: An adsorption system having at least one adsorber retaining a bed of adsorbent material can be configured to provide enhanced purification of fees having relatively low concentrations of hydrogen or helium. Embodiments can utilize an activated carbon layer between at least one upstream layer and at least one downstream layer. The activate carbon layer can include activated carbon can have a pre-selected surface area (SA), bulk density, total open pore volume (TOPV), and/or ratio of TOPV to surface area (TOPV/SA).

Abstract: An air-conditioning device, a control method and device, and a computer-readable storage medium are provided. The air-conditioning device includes a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger and a flash evaporator. The four-way valve is connected to the compressor through a first refrigerant branch, and a first control valve is arranged on the first refrigerant branch. A second refrigerant branch is connected in parallel to the first refrigerant branch; and a second control valve, and a hot-gas bypass pipe positioned at the bottom of the outdoor heat exchanger are arranged on the second refrigerant branch. A first refrigerant port of the flash evaporator is connected to the outdoor heat exchanger, a second refrigerant port of the flash evaporator is connected to the indoor heat exchanger, and an air outlet of the flash evaporator is connected to the compressor.

Abstract: Provided are a circulating water control method and system, a computer-readable storage medium, and an air conditioner. A first water delivery assembly of a water delivery device of the air conditioner is in communication with an indoor drain pan and a spray device, and a second water delivery assembly is in communication with an outdoor drain pan and a space where an indoor heat exchanger is located. The method includes: determining an operating mode of the air conditioner and obtaining water level information of the indoor drain pan and water level information of the outdoor drain pan; and controlling the first and second water delivery assemblies based on the operating mode, the water level information of the indoor drain pan, and the water level information of the outdoor drain pan, to circulate condensate water generated by the air conditioner between an indoor unit and an outdoor unit.

Abstract: A vehicle brake system includes a back plate that may support a composite pad, and at least one conditioning insert coupled to the back plate and that may contact a surface of a wheel during a braking event and thereby to condition at least a portion of the surface of the wheel. Optionally, the back plate can define a U-shaped coupler that is centrally located and has two ends that are distal from the coupler. The back plate can have a centerline extending from a first end of the ends to a second end of the ends while passing through a center of the back plate, and the at least one conditioning insert can be disposed off of the centerline so as to not be centrally disposed.

Abstract: Adsorbent material for use in pressure swing adsorption (PSA) related processing can provide improved purification processing with reduced temperature differentials between adsorption and desorption processing of the bed of adsorbent material. Embodiments can be configured so that adsorbent material has occluded micropores or macropores. The occlusion of the micropores or macropores can be up to 42% of the micropores the adsorbent material in some embodiments. At least one metal acetate can be utilized for the occlusion of the micropores or macropores. Utilization of the adsorbent material having occluded micropores or macropores was surprisingly found to increase the yield for purification of a product gas in spite of the occlusion of the micropores or macropores.

Abstract: An apparatus and process for the activation of catalyst material utilized in ammonia cracking can include an initial use of hydrogen and heat to perform an initial stage of catalyst activation and a subsequent use of ammonia and heat to perform a subsequent state of catalyst activation. The subsequent use of ammonia can be configured so that different catalytic material at different plant elements are activated in a pre-selected sequence to provide activation of the catalytic material utilized in different plant elements. Some embodiments can be configured to avoid excess temperatures that can be detrimental to equipment that can be positioned upstream of a furnace in some embodiments while also avoiding sintering of the catalytic material.

Abstract: A biochar apparatus and a related biochar module may have a horizontal table-shaking mechanism and a tapered channel for causing biochar pieces generated in a firebox to fall through openings in the table to a conveyor system below. The table may be configured with replaceable grate panels. A quenching reservoir pan for holding quenching liquid receives a drainage basket at a discharge end of the conveyor system for quenching hot pieces of biochar and allowing easy retrieval of the quenched pieces.

Abstract: Systems and methods for Endovascular Perfusion Augmentation for Critical Care (EPACC) are provided. The system may include a catheter having an expandable aortic blood flow regulation device disposed on the distal end of the catheter for placement within an aorta of a patient. The system may also include a catheter controller unit that causes the expandable aortic blood flow regulation device to expand and contract to restrict blood flow through the aorta.

Abstract: The present disclosure is directed to a method and system for repairing a blade for a turbomachine that has been damaged due to foreign object impact. Machine learning algorithms are used to determine an amount of material to be removed from one or more damage locations and determine an amount of material addition to the damaged portion(s) and/or at other locations on the blade to keep the natural frequencies of the repaired blade within design limits during operation.

Abstract: A system and method for managing residual energy in a charging component is disclosed herein. Managing residual energy includes detecting an electrical parameter of the charging component and the electrically connected battery pack and generating a residual datum. The residual datum is transmitted to a computing device. The computing device identifies a residual element, generates an alert datum, and executes a security measure.

Abstract: Disclosed herein are methods and systems for producing a liquefied methane product from a methane- and carbon dioxide-containing feed stream, in which a plurality of membrane stages comprising gas separation membranes that are more permeable to carbon dioxide than methane are used to remove carbon dioxide from the feed and form a retentate stream that is enriched in methane, said retentate stream being then cooled and liquefied to provide the liquefied methane product. In particular, the disclosed methods and systems may be used for producing liquefied biomethane from a biogas feed.

Abstract: A process for combusting a high-moisture fuel to generate steam, the process comprising heating a high-moisture solid fuel while contacting the high-moisture solid fuel with an oxygen-depleted gas stream to produce a dried solid fuel and a moist oxygen-depleted gas stream; combusting the dried solid fuel with a combustion air stream to produce a combustion products stream; transferring heat to generate steam by indirect heat exchange with the combustion products stream; dividing the combustion products stream into a first portion and a second portion; transferring heat to the recirculating thermal fluid by indirect heat exchange with the first portion of the combustion products stream; and transferring heat to preheat the combustion air stream by indirect heat exchange with the second portion of the combustion products stream; and recombining the first portion of combustion products stream and the second portion of the combustion products stream.

Abstract: The present application discloses an air conditioner control method. The method includes obtaining a position of a user; detecting that the position of the user meets a preset condition, and obtaining a target operating parameter of an air conditioner, the preset condition being determined according to a preset running time span, and the preset running time span being determined according to a current environmental parameter and a target environmental parameter, and the current environmental parameter comprising at least one of a current indoor temperature, a current indoor humidity, a current air cleanliness and a current air freshness; and controlling the air conditioner at a target position to operate with the target operating parameter. The present application also discloses an air conditioner, a server and a computer readable storage medium.

Abstract: In an aspect an apparatus for determining a most limiting parameter of an electric aircraft is presented. An apparatus includes at least a processor and a memory communicatively connected to the at least a processor. A memory contains instructions configuring at least a processor to receive aircraft data from a sensing device. A sensing device is configured to measure a parameter of an electric aircraft and generate aircraft data. At least a processor is configured to determine a most limiting parameter of an electric aircraft as a function of aircraft data. At least a processor is configured to communicate a most limiting parameter to a pilot indicator in communication with the at least a processor and memory communicatively connected to the at least a processor. A pilot indicator is configured to display a most limiting parameter to a user.

Abstract: A heat exchanger apparatus can be configured so that there is at least one “U” or “C” shape configured manifold in combination with at least one “Z” or “S” shape configured manifold for the heat exchanger apparatus for the input and output of fluid into and out of the heat exchangers of the heat exchanger apparatus. In some embodiments, downstream and/or upstream lines can be connected to the manifolds at a center or off-center point for conveying inlet fluid and outlet fluid. A method of retrofitting a pre-existing plant, building a new plant, or designing a new plant that utilizes an embodiment of the heat exchanger apparatus can help provide an improved heat exchanger arrangement without significantly increasing the footprint needed for the arrangement so that a plant can be improved with an embodiment of the apparatus without requiring an enlarged footprint for the plant.

Abstract: The invention herein provides an over-current protection system. The over-current protection system includes a sensing device, a comparator, a first transistor, and a second transistor. The sensing device is adapted to sense current flowing to an electrical device. The comparator is adapted to compare a signal received from the sensing device and a reference signal to generate any one of high signal and low signal, the output of the comparator being connected to a control device. The first transistor connected to the output signal of the comparator to control the first transistor, while the first transistor is in a conductive state when the output signal of the comparator is high signal. The second transistor connected to and controlled by the first transistor, while the second transistor is in a conductive state when the first transistor is in the conductive state.

Abstract: An electric control box includes a box body. The box body includes a bottom plate, a box cover covering the bottom plate, an electric control assembly mounted at the bottom plate and including an electric control board and a heat sink mounted at the electric control board, and a sealing sleeve sleeved on a circumference of the heat sink. The box cover is provided with an extension opening for the heat sink to protrude outward. An inner surface of the box cover is formed with a sink groove on a circumference of the extension opening, and the sink groove is fitted and engaged with the sealing sleeve.

Abstract: An air conditioner includes a housing, a compressor system provided in the housing and including a first heat exchanger, a second heat exchanger, a compressor, and a throttle device that are circularly communicated, and a liquid pump system provided in the housing and including a third heat exchanger, an energy storage device, and a liquid pump device that are circularly communicated. The liquid pump system contains a coolant circulating in the liquid pump system. The energy storage device includes an energy storage medium configured to receive energy from the second heat exchanger and store the energy, and to exchange heat with the coolant.

Abstract: A middle air duct support member and an air conditioner provided. The middle air duct support member has an annular first support portion and an annular second support portion arranged at an axial end of the first support portion. The second support portion and the first support portion are manufactured separately.

Abstract: A variable refrigerant package air conditioner is shown that is easy to install in new construction with a unique base that causes collected mixture that overflows to drain outside the building. A control system is shown that has motors and compressor that are pulse width modulated so the air conditioner is infinitely variable while maintaining the highest possible power factor. Dehumidification of outside air occurs as it is mixed with inside air. By gradually approaching a temperature set point and even reheating after dehumidification, moisture is removed from the room.