923results about "Reactant parameters control" patented technology

The invention belongs to the technical field of hydrogen energy, and particularly relates to a solid hydrogen storage system with two charging and discharging ends and a working method.The solid hydrogen storage system comprises at least two independent solid hydrogen storage units, and each solid hydrogen storage unit independently communicates with an upstream hydrogen supply pipeline through a first valve set and independently communicates with a downstream hydrogen using pipeline through a second valve set; each solid hydrogen storage unit is selectively communicated with the thermal circulation loop or the cold circulation loop through a third valve group; the first valve group, the second valve group and the third valve group are controlled, so that when the upstream hydrogen supply pipeline has a hydrogen supply demand and the downstream hydrogen use pipeline has a hydrogen use demand, the first solid hydrogen storage unit is configured to be in a hydrogen charging mode, and meanwhile, the second solid hydrogen storage unit is configured to be in a hydrogen discharging mode; the solid hydrogen storage unit in the hydrogen charging mode is communicated with the upstream hydrogen supply pipeline and the cold circulation loop for charging hydrogen, and the solid hydrogen storage unit in the hydrogen discharging mode is communicated with the downstream hydrogen supply pipeline and the hot circulation loop for discharging hydrogen.

An aircraft comprises a fuselage; wings; engines connected to the wings; a set of liquid hydrogen tanks; a vent located on the tail on the fuselage; a conduit system connecting the liquid hydrogen tanks to the vent; and a controller. The controller is configured to control the conduit system to remove gaseous hydrogen in the set of liquid hydrogen tanks to travel through the conduit system and exit at the vent in response to pressure in the set of liquid hydrogen tanks being greater than a specified tolerance.

The present application provides a solid-state hydrogen storage material and a preparation method and application thereof. Specifically, the preparation method comprises the following steps: (1) ball-milling a magnesium-based alloy powder, a light metal hydride, a nano-carbon material, a composite catalyst powder and an interface modifier to obtain a mixed powder; and (2) sintering the mixed powder under vacuum at 200-350 DEG C for 2-5 hours to obtain a sintered body, wherein: the magnesium-based alloy powder is a Mg-Mn-Al alloy powder; the light metal hydride is a mixture of LiAlH4 and NaBH4; the nano-carbon material is selected from one or more of graphene and carbon nanotubes; the composite catalyst powder is a mixture of TiO2, Fe3O4, CeO2 and La2O3; and the interface modifier is selected from one or more of a silane coupling agent and a titanate coupling agent. The solid-state hydrogen storage material has high hydrogen storage capacity, fast hydrogen absorption and desorption rate and good cycle stability.

Disclosed in the present invention is an integrated reforming power generation test system having wide-range fuel adaptability, comprising a fuel supply subsystem, a catalytic reforming subsystem, a hydrogen purification subsystem, a power generation subsystem, and a test monitoring subsystem. A fuel pump and a fuel delivery pump are connected to a water-gas shift reactor by means of an evaporator and a reformer, the water-gas shift reactor is connected to a pressure swing adsorption device by means of a first gas-liquid separator, the pressure swing adsorption device is connected to a fuel cell stack by means of a hydrogen buffer tank, and a gas chromatograph is connected to the reformer by means of a third gas-liquid separator and to the water-gas shift reactor by means of a second gas-liquid separator. By using a variety of fuel resources to produce electricity, the present invention breaks through the limitation of the scope of traditional single-fuel reforming power generation systems, ensures the reliability of electricity supply, gets rid of the dependence on specific fuels, enhances regional energy safety, and improves the flexibility of energy supply.

Techniques for supplying power to an electrical load include electrically coupling a power supply system to an electrical load. The power supply system includes a chemical energy sub-system including a fuel cell and a fuel storage assembly that stores a fuel, where the fuel cell is configured to generate a first electrical energy output at a first power output; an electrochemical energy sub-system including an energy storage device configured to generate a second electrical energy output at a second power output; and a power control unit electrically coupled to the chemical energy sub-system and the electrochemical energy sub-system and electrically coupled to the electrical load. The method includes operating the power control unit to provide the first electrical energy output or the second electrical energy output to the electrical load.

A power generation system, including: a container having an interior volume; a fuel cell compartment, which is a portion of the interior volume that is defined by one or more fuel-cell-partitions in the container; a fuel cell located within the fuel cell compartment; a battery compartment, which is a portion of the interior volume that is defined by one or more battery-partitions; a battery located within the battery compartment; a control compartment, which is a portion of the interior volume that is: separated from the fuel cell compartment by the one or more fuel-cell-partitions; separated from the battery compartment by the one or more battery-partitions; an outflow vent; and a fan configured to reduce the air pressure in the fuel cell compartment such that air is drawn through the battery compartment and the fuel cell compartment and exits the container through the outflow vent.

Systems and methods are described for powering a load, such as a data center, with renewable energy from a renewable energy source. When the renewable energy is greater than a demand of the load, excess renewable energy is used to power a hydrogen production device or charge a battery depending on whether or not the charge level of the battery satisfies an upper threshold charge level, respectively. When the renewable energy is less than the demand of the load and the charge level of the battery satisfies a lower threshold charge level, the load is powered with energy from the battery. When the renewable energy is less than the demand of the load and the charge level of the battery does not satisfy the lower threshold charge level, the load is powered and the battery is charged with energy generated by the hydrogen-based energy generator.

A work vehicle includes a vehicle body, a fuel cell installed on the vehicle body, a radiator positioned side by side with the fuel cell, and a support that supports the radiator. The support includes a first support connected to the vehicle body and the radiator, and a second support connected to the fuel cell and the radiator.

Hydrogen is produced by electrolysis of water using electricity generated from a renewable energy source such as wind and / or solar radiation, compressed in a multistage compression system and consumed in at least one downstream process. Supply of hydrogen to the downstream process(es) fluctuates with demand and / or the availability of the renewable energy source. In order to accommodate such fluctuations, excess hydrogen is stored during periods when production of hydrogen exceeds that required by the downstream process(es) so that, during periods when demand exceeds production, hydrogen is removed from storage and, after suitable pressure reduction, fed to the downstream process(es) via a stage of the multistage compression system.

A hydrogen supply system includes a detachable hydrogen tank, a hydrogen consumption apparatus that consumes hydrogen in the hydrogen tank, and a control device. The hydrogen consumption apparatus includes a detachment and attachment mechanism that detaches the hydrogen tank from the hydrogen consumption apparatus and attaches the hydrogen tank to the hydrogen consumption apparatus. The detachment and attachment mechanism includes a motor that controls detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus. When a torque value of the motor exceeds a threshold during the control of the detachment and attachment of the hydrogen tank from and to the hydrogen consumption apparatus, the control device returns the hydrogen tank to a position where a moving process in which the threshold being exceeded is detected is started.

The invention relates to the technical field of lithium air batteries, in particular to a lithium air battery, a battery system and a use method. A lithium air battery includes: a battery case having a positive electrode chamber; and the compression air supply assembly is arranged outside the battery shell, and the compression air supply assembly is communicated with the positive electrode chamber through a pipeline. The invention provides a lithium air battery, a battery system and a use method, and aims to solve the problem of complex internal structure of an existing air compressor.

Method for testing the tightness of a sealing device (54) of a flow chamber component (40) for an electrochemical cell system (11) comprising the steps of: providing a test fluid in a flow chamber (41) of the flow chamber component (40) for the electrochemical cell system (11), wherein the flow chamber component (40) for the electrochemical cell system (11) comprises the sealing device (54) for sealing the flow chamber (41) for the process fluid by having a first component (43) directly or indirectly rest on a second component (44) at a contact area (47), such that the sealing device (54) is formed between the first component (43) and the second component (44) due to the direct or indirect contact between the first component (43) and the second component (44) at the contact area (47); arranging a detection device (50) for the test fluid in a space outside the flow chamber (41).Detect the test fluid flowing from the flow chamber (41) through the sealing device (54) as leakage fluid with the detection device (50), wherein the leakage fluid is directed into a collection chamber (57) bounded by the flow chamber component (40) itself after flowing through the sealing device (54) and the leakage fluid directed into the collection chamber (57) is detected with the detection device (50).

The invention relates to a method of operating and / or fueling a compressed gas supply system (34) having at least two compressed gas tanks (15, 16, 17, 18, 19) connected to an anode path (2) of a fuel cell system (1).To increase thermal safety during operation and / or fueling of the compressed gas supply system (34), the valve devices (21, 22, 23, 24, 25) assigned to the pressure tanks (15, 16, 17, 18, 19), which comprise a filling path with an actively switchable filling valve and a discharge path with an actively switchable discharge valve for each of the compressed gas tanks (15, 16, 17, 18, 19) are individually actuated via an electronic control unit, which is connected to a sensor device having at least one sensor, which senses a current temperature in the respective valve installation (21, 22, 23, 24, 25).

A method for monitoring the state of a redox flow battery system that includes at least two battery modules connected in series. The method includes the following steps: S1: switching at least one battery module out of the series circuit; S2: discharging at least a partial volume of the electrolyte of the at least one battery module that was switched out of the series circuit in step S1, a potential difference being repeatedly detected, the potential difference being formed between a first potential of the negative electrolyte and a second potential of the positive electrolyte of the at least one battery module that was switched out of the circuit; S3: determining, from the potential difference values detected in step S2, the state of health of the at least one battery module that was switched out of the series circuit in step S1.

The invention discloses a data center combined cooling heating and power supply system based on mixed hydrogen energy and a control method thereof, and the system comprises a hydrogen source supply and storage module which is used for inputting hydrogen for power generation, a power generation and energy supply module which is used for converting the hydrogen into electric energy, and a DC micro-grid module which is used for providing the electric energy for a data center. The heat management and application module is used for recycling and applying heat generated during power generation, and the control and protection module is used for controlling the modules. According to the invention, hydrogen energy efficient power generation, waste heat cascade recovery and intelligent scheduling are realized through modular cooperation, the problems of high carbon emission, response delay and energy waste in the prior art are solved, and the system has the advantages of significantly reducing carbon emission, optimizing electric energy use efficiency, improving power supply continuity and energy utilization rate, and simultaneously realizing combined supply of cooling, heating and power.

A hydrogen supply system including: a plurality of hydrogen tanks that is attachable and detachable; a hydrogen consumption device that consumes hydrogen of the hydrogen tanks; and a control device is provided. The hydrogen consumption device includes an attaching-detaching mechanism including a plurality of motors that controls attaching and detaching of the hydrogen tanks with respect to the hydrogen consumption device, the motors corresponding to the attaching and detaching of the respective hydrogen tanks. The control device disposes, based on a temperature of each of the motors, a hydrogen tank of the hydrogen tanks to a hydrogen supply start position at which the hydrogen tank and the hydrogen consumption device are connected in a state in which the hydrogen tank is allowed to supply hydrogen to the hydrogen consumption device, or disposes the hydrogen tank to a hydrogen supply standby position.

The present disclosure relates to a check valve including a valve body, a valve poppet, and a gasket. The valve body may include an inlet and an outlet. A valve seat may be disposed at the inlet of the valve body. A fuel passage may connect the inlet to the outlet and be formed inside the valve body. The valve poppet may be disposed in the valve body and configured to open the inlet by moving inside the valve body. The valve poppet may include a flange that extends outward from a bottom portion of the valve poppet. The flange may have a groove on a bottom surface thereof. The gasket may be disposed on an inner surface of the valve body and around the outlet. The gasket may be configured to maintain airtightness while in contact with the valve poppet.

A redox flow battery (1) comprising a cell arrangement (2), a control device (5), and two electrolyte circuits, wherein each electrolyte circuit comprises a tank (3) for storing electrolyte fluid, a piping system, and a pump (4) for circulating electrolyte fluid in the electrolyte circuit, and wherein the piping system comprises a supply line (6.1) from the tank (3) to the cell arrangement (2) and a return line (6.2) from the cell arrangement (2) to the tank (3), and wherein the pump (4) is arranged in the supply line, characterized in that each electrolyte circuit comprises an additional piping line (7) and a shut-off valve (8), wherein the shut-off valve (8) is arranged in the additional piping line (7), and wherein the additional piping line (7) branches off at a first end from the supply line (6.1) in the direction of flow of the electrolyte fluid downstream of the pump (4) and at a second end into the return line (6.1).2) terminates, and wherein the control device (5) is designed to control the closing states of the shut-off valves (8) in order to improve the mixing of the electrolyte fluid stored in the tanks (3) in predetermined operating conditions.

The invention discloses a modular container type electric heat hydrogen co-production device, which belongs to the technical field of renewable energy sources and comprises a box body, and an electrical device, a hydrogen production device, a hydrogen storage device, a fuel cell, an explosion-proof wall, an isolation plate and a grating platform which are integrated in the box body, the interior of the box body is sequentially divided into a cabin A, a cabin B and a cabin C from one end to the other end in the length direction; the cabin A and the cabin B are separated through an explosion-proof wall, and the cabin B and the cabin C are separated through a separation plate; the grating platform is arranged in a cabin C, and the cabin C is divided into an upper space and a lower space; the electrical device is located in the cabin A, the hydrogen production device is located in the cabin B, the hydrogen storage device is located on the lower portion of the cabin C, and the fuel cell is located on the upper portion of the cabin C and arranged on the grating platform. According to the invention, an efficient and compact alkaline hydrogen production device is realized, a compact fuel cell system and a high-density solid hydrogen storage device are integrated, and a compact electric-thermal-hydrogen co-production system which can be flexibly deployed is formed.

A fuel-cell-powered aircraft system has integrated air-cooled fuel cell stacks positioned within an interior space of at least one wing of an aircraft. An airflow path is positioned in contact with at least a heat exchanger of the fuel cell stack. The induced flow of air through the airflow path cools the heat exchanger. The efficiently-induced flow of air for cooling the fuel cell stack has a zero or minimal drag penalty.

The invention discloses a hydrogen fuel cell heat and power cogeneration system for zero-carbon energy supply of a building, and the system comprises a fuel cell power generation module which is used for receiving high-purity hydrogen as a fuel and generating direct current through electrochemical reaction so as to supply power to an electric load of the building. And the heat recovery and heat supply module is used for recovering heat generated in the operation process of the fuel cell power generation module so as to supply heat to a building heat load. And the hydrogen supply module is connected with the fuel cell power generation module and is used for providing hydrogen required by the fuel cell power generation module. And the intelligent energy management module is used for monitoring electric / thermal load requirements in real time and dynamically adjusting the output power of the fuel cell power generation module. The method has the advantages that zero carbon emission can be realized; the energy is efficiently utilized; the modular design supports flexible expansion from kW level to hundred kW level, and adapts to different building scales; the system has the capabilities of automatic start and stop, load following and grid-connected / off-grid switching; the environment adaptability is high; and the technology maturity is high, and a large-scale deployment basis is provided.

A propulsion system for an aircraft includes a fan section having a fan; a turbomachine including a compressor section, a combustion section, and a turbine section arranged in serial flow order; at least one electric machine; a fuel cell assembly configured to supply power to the electric machine; and a controller including a memory and one or more processors. One or both of the turbomachine and the at least one electric machine are configured to drive rotation of the fan of the fan section. The fuel cell assembly includes at least one fuel cell, a first fluid inlet for receiving a flow of pressurized air, and a second fluid inlet for receiving a flow of fuel.

A tank of a gas supply system is configured to be detachably attached to a gas consumption device. A control device is configured to, when the tank is detached, close an open / close valve to stop supply of gas from the tank, stop consumption of gas by the gas consumption device after the gas in the supply channel is consumed, and perform computation to permit detachment of the tank after confirming that pressure acquired from a pressure sensor is not rising to a predetermined level or higher.

To provide a hydrogen supply system capable of avoiding continuation of pinching of foreign matter or the like.SOLUTION: A hydrogen supply system comprising: a detachable hydrogen tank; a hydrogen consuming device configured to consume hydrogen in the hydrogen tank; and a control device, wherein the hydrogen consuming device comprises a detachment mechanism configured to detach the hydrogen tank from the hydrogen consuming device, when a torque value of the motor exceeds a threshold value during attachment / detachment control of the hydrogen tank to / from the hydrogen consumption device, the control device returns the hydrogen tank to a position at which a moving stroke in which the torque value exceeds the threshold value is started.SELECTED DRAWING: Figure 1

The present invention relates to a solid oxide fuel cell system comprising a catalytic combustor structured as a heat exchanger, and the present invention can maximize heat transfer efficiency by utilizing, as heat sources, all heat originating from a gas flow of a cathode and an anode of a stack, by comprising a multi-functional catalytic combustor structured as a heat exchanger, which utilizes, as heat sources, a stack cathode off-gas discharged from the stack of a fuel cell, and a fuel off-gas of a second exhaust line that diverges after passing through a heat exchanger, in order to increase the temperature of air supplied from an air supply part and supply same to a multi-functional steam reformer.

A heat exchanger for a fuel cell power plant system may include a first loop and a second loop. For the first loop, a first coolant may be passed through a fuel cell stack, a thermostat, a first portion of a first plate of the heat exchanger, and a fuel cell pump. For the second loop, a second coolant may be passed through a second portion of the first plate of the heat exchanger.

The invention relates to the field of hydrogen fuel cells, and discloses a hydrogen energy unmanned ship which comprises a ship body, a hydrogen discharging electromagnetic valve is fixedly connected to the interior of the ship body, a solid hydrogen storage bottle is fixedly connected to the interior of the ship body, a hydrogen inlet electromagnetic valve is arranged on one side of the outer wall of the solid hydrogen storage bottle, and an auxiliary lithium battery is fixedly connected to the interior of the ship body. A fuel cell system is arranged on one side of the outer wall of the auxiliary lithium battery, a one-way conduction diode is fixedly connected to the interior of the ship body, a DC-DC boosting system is arranged on one side of the outer wall of the one-way conduction diode, and the lower surface of the DC-DC boosting system is fixedly connected to the upper surface of the ship body. Through cooperative work of the fuel cell system and the lithium battery energy storage system, the propelling system can obtain continuous and stable power supply, and therefore the operation efficiency of the unmanned ship and the reliability of a power system are improved; the unmanned ship can carry out accurate autonomous navigation and remote control, and the operation flexibility and safety are improved.

Liquid membrane cell assemblies are disclosed. In some embodiments, the liquid membrane cell assembly includes an elongate base having opposed first and second end portions and a central portion disposed therebetween. The first and second end portions each includes an elongate body, an electrolyte channel within the body, an electrolyte port fluidly connected to the electrolyte channel, a fuel channel within the body, and a fuel port fluidly connected to the fuel channel. The central portion includes spaced and opposed first and second members that connect the bases of the first and second portions and that horizontally define an open area therebetween. The liquid membrane cell assembly additionally includes an anode adjacent the first and second members, and a cathode adjacent the first and second members such that the base is disposed between the anode and the cathode. The anode and cathode vertically define the open area therebetween.

Single channel liquid membrane cell assemblies and cell bodies are disclosed. In some embodiments, the single channel liquid membrane cell assembly includes an elongate cell body having an elongate opening, a first bipolar plate adjacent the cell body, and a first gas diffusion electrode disposed between the cell body and the first bipolar plate. The first gas diffusion electrode spans across the entire length and width of the elongate opening of the cell body. The single channel liquid membrane cell assembly additionally includes a second bipolar plate adjacent the cell body such that the cell body is disposed between the first and second bipolar plates. The elongate opening horizontally defines an open area and the first gas diffusion electrode and the second bipolar plate vertically define the open area therebetween.

The invention relates to an air supply module comprising a housing with an inlet and an outlet through which an airflow passes. According to the invention, the module includes, housed within the casing, a first filter and a first heat exchanger which are in direct fluidic communication with each other. The implementation of such an air supply module eliminates the need for connecting pipes between the module's components. This reduces the module's volume (and therefore its size) and weight, thus facilitating its integration into an electrical power generation system incorporating a fuel cell. This is also advantageous when the module is to be installed in an aircraft.