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2619results about "Reactant parameters control" patented technology

Fuel cell turboelectric fan for an aircraft

A propulsion system for an aircraft as disclosed herein may include a nacelle, a shaft positioned centrally within a cylindrical passageway of the nacelle, a fan coupled to one end of the shaft, a turbine coupled to an opposite end of the shaft, an electric motor coupled to the shaft, a compressor positioned within the cylindrical passageway, and a solid oxide fuel cell positioned with a hollow ring-shaped interior of the nacelle. The hollow ring-shaped interior may surround and be isolated from the cylindrical passageway. The turbine may be configured to provide primary torque to the shaft while the electric motor may be configured to provide additional torque to the shaft. The electric motor may be powered an electric output of the solid oxide fuel cell while the turbine may be powered at least in part by output gases from the solid oxide fuel cell.
Owner:TENNESSEE TECHNOLOGICAL UNIVERSITY

Hydrogen storage device based on solid hydrogen storage material and hydrogen production method thereof

The invention relates to the technical field of hydrogen preparation, and provides a hydrogen storage device based on a solid hydrogen storage material and a hydrogen production method thereof.The device comprises a fuel tank internally provided with a reaction cavity used for containing an aluminum hydride material and mixed powder; the heater is arranged on the outer side of the fuel tank; the first end of the water recycling assembly is communicated with the reaction cavity, and the second end of the water recycling assembly is communicated with the fuel cell system so as to recycle water generated by the fuel cell system to the reaction cavity; the first end of the hydrogen discharging assembly is communicated with the reaction cavity, and the second end is communicated with a fuel cell system. According to the hydrogen storage device provided by the invention, through the application of the high-specific-energy solid hydrogen storage material aluminum hydride which can be stored at normal pressure and release hydrogen at a relatively low temperature, the thermal decomposition process of the metal hydride in the fuel tank and the coupling reaction process of the metal hydride and water are optimized, and the hydrogen is produced by utilizing the hydrolysis reaction of the aluminum hydride thermal decomposition reactant simple substance aluminum and the water; meanwhile, thermal decomposition of aluminum hydride is promoted through heat released by hydrolysis reaction, hydrogen release is coupled, and effective utilization of heat is achieved.
Owner:DALIAN INSTITUTE OF CHEMICAL PHYSICS CHINESE ACADEMY OF SCIENCES

Porous ejector, use method thereof and fuel cell system

The invention discloses a porous ejector, a use method thereof and a fuel cell system, and belongs to the technical field of fuel cells. Comprising a shell, a cavity is formed in the shell, and the cavity comprises a suction cavity, a mixing chamber, a second flow stabilizing chamber and a diffusion section which are sequentially arranged; a nozzle body is mounted in the suction cavity and is used for accelerating and depressurizing the driving fluid and spraying the accelerated and depressurized driving fluid into the suction cavity to form a negative pressure area; an ejection opening is formed in the side wall, corresponding to the suction cavity, of the shell and used for introducing an ejection fluid, and the ejection fluid and the driving fluid subjected to acceleration and pressure reduction are mixed in the mixing chamber; a nozzle assembly is arranged at the end, close to the mixing chamber, of the nozzle body and comprises at least one nozzle, and driving fluid is accelerated through a hole channel of the nozzle. The invention provides a porous ejector, a use method thereof and a fuel cell system, and solves the technical problems of low fuel injection efficiency and insufficient energy utilization of a single-hole ejector used in a traditional hydrogen supply system.
Owner:YINGJIA POWER TECH WUXI CO LTD

Flow battery system and temperature control method thereof

The invention discloses a flow battery system and a temperature control method thereof. A positive electrode heater and a positive electrode cooler which are used as a positive electrode temperature control assembly are arranged in a positive electrode electrolyte conveying and temperature management unit, and a negative electrode heater and a negative electrode cooler which are used as a negative electrode temperature control assembly are arranged in a negative electrode electrolyte conveying and temperature management unit. Closed-loop or open-loop management is carried out on the positive electrode temperature control assembly and the positive electrode in-pile or out-pile temperature or the temperature adjusting rate of the positive electrode in-pile or out-pile temperature, and closed-loop or open-loop management is carried out on the negative electrode temperature control assembly and the negative electrode in-pile or out-pile temperature or the temperature adjusting rate of the negative electrode in-pile or out-pile temperature, so that the temperature and the temperature change rate can be effectively controlled. Through the implementation of the invention, the system temperature management can be finer, the adaptability of the system under different conditions is improved, the battery performance and the system efficiency can be improved, the operation mode can be adjusted according to requirements in the operation process, and the application is more flexible; the system operation reliability can be enhanced, the system life is prolonged, and the system efficiency is improved.
Owner:SUZHOU HUACHANG ENERGY TECH CO LTD

Multi-hydrogen-storage-tank solid-state hydrogen storage system based on temperature control

The invention discloses a multi-hydrogen-storage-tank solid hydrogen storage system based on temperature control, and relates to the technical field of hydrogen energy storage, and the key points of the technical scheme are that the system comprises a plurality of hydrogen storage tanks, each hydrogen storage tank adopts different types of alloy hydrogen storage materials, each hydrogen storage tank is provided with an independent temperature control system, and the temperature is adjusted according to the types of the hydrogen storage materials; therefore, the hydrogen storage efficiency is optimized. The system can accelerate the hydrogen storage rate and improve the storage density through temperature control, the heat exchange device is arranged to improve the heat energy management efficiency, and accurate temperature control and cycle counting functions are achieved. The service life of the hydrogen storage material can be effectively prolonged, performance degradation is reduced, and the long-term stability of a hydrogen storage system is improved.
Owner:SUZHOU LVFENGDA NEW ENERGY MATERIAL TECH CO LTD

Hydrogen storage system control method and device, electronic equipment and vehicle

The invention provides a hydrogen storage system control method and device, electronic equipment and a vehicle. The hydrogen storage system control method comprises the steps that gas leakage detection is conducted on a hydrogen pipeline of a vehicle-mounted hydrogen storage system; according to the method, the passage between the target pipeline with the gas leakage fault and the hydrogen source is controlled to be cut off instead of closing the whole hydrogen storage system, so that the hydrogen storage system can continue to work through other pipelines, the reliability of the vehicle-mounted hydrogen storage system is improved, the stability of the hydrogen fuel cell vehicle is guaranteed, and the driving experience is improved.
Owner:GREAT WALL MOTOR CO LTD

Energy storing electricity generator

The present disclosure provides systems and methods for generating and storing hydrogen and electricity. The systems generally include an electrolyzer stack, a fuel cell stack operably connected to the electrolyzer stack, and a hydrogen recirculation stack operably connected to the electrolyzer stack and to the fuel cell stack.
Owner:OHMIUM INTERNATIONAL INC

Sodium Formate Hydrogen Extraction System Operation And Production Of Hydrogen And Methanol

An integrated energy system comprising a power plant including at least one nuclear reactor and electrical power generation system, the at least one nuclear reactor being configured to generate steam, and the electrical power generation system being configured to generate electricity, a desalination system configured to receive at least a portion of the electricity and steam to produce brine, an electrolysis process configured to process the brine into Sodium Hydroxide (NaOH), a Sodium Formate (HCOONa) production process configured to receive the Sodium Hydroxide (NaOH) to produce Sodium Formate (HCOONa), a Hydrogen (H2) extraction reactor configured to receive the Sodium Formate (HCOONa) and produce Hydrogen (H2), and a fuel cell configured to receive the Hydrogen (H2).
Owner:NUSCALE POWER LLC

Independent energy supply system suitable for high altitude area and control method thereof

The invention relates to the technical field of new energy, and discloses an independent energy supply system suitable for a high-altitude area and a control method thereof, electric power is generated through photovoltaic power generation, part of the electric power is stored in a storage battery, and the residual electric power is used for electrolyzing water to prepare hydrogen and oxygen, and the hydrogen and the oxygen are respectively stored. The oxygen content in the air is increased by mixing the oxygen, the oxygen and the hydrogen jointly enter the fuel cell for chemical reaction, and stable electric power and hot water are output. In order to ensure the stability of the system, a low-temperature air source heat pump is configured to serve as standby heat supply equipment, and accurate adjustment and storage of electric power are achieved through cooperative work of a load tracking module and an efficient storage battery. According to the system, photovoltaic power generation, hydrogen energy storage and fuel cell technologies are combined, continuous and reliable power and heat combined supply can be achieved in high-altitude areas lack of power grid support, and an efficient and environment-friendly solution is provided for energy supply in remote areas.
Owner:上海舜华新能源系统有限公司

Air supply device for aerial mobility vehicle

An air supply apparatus for an aerial mobility vehicle, which is provided with a fuel cell stack, includes an air compressor mounted in the aerial mobility vehicle and configured to compress air introduced into the aerial mobility vehicle, and an air chamber provided in the aerial mobility vehicle and connecting the air compressor and the fuel cell stack, wherein the air chamber defines a conditioning space for conditioning the air having passed through the air compressor, obtaining an advantageous effect of ensuring a stable supply of air to the fuel cell stack and improving operational stability and reliability.
Owner:HYUNDAI MOTOR CO LTD +1

Liquid hydrogen fuel cell unmanned aerial vehicle thermal management system

The invention discloses a liquid hydrogen fuel cell unmanned aerial vehicle thermal management system, relates to the technical field of unmanned aerial vehicles, and solves the problem of temperature management in the flight process of an unmanned aerial vehicle. The system comprises a liquid hydrogen storage tank, a heat exchanger II, a hydrogen pump, an air compressor, a fuel cell, a power management module, a lithium battery, a motor, a phase change heat reservoir and a cooling system, wherein the liquid hydrogen storage tank, a cold end of the heat exchanger II, the hydrogen pump and an anode of the fuel cell are sequentially communicated; the air compressor is communicated with the cathode of the fuel cell; the phase change heat reservoir and the liquid cooling heat management system are used for cooling the fuel cell; the fuel cell, the power management module and the motor are sequentially connected; the lithium battery is connected with the power management module; and the phase change heat reservoir absorbs heat generated by the motor and the lithium battery during working. Liquid hydrogen vaporization is assisted through heat generated by the fuel battery lithium battery and the motor, efficient recycling of energy is achieved, energy waste is reduced, the energy utilization efficiency of the whole system is improved, and the endurance time of the unmanned aerial vehicle is prolonged.
Owner:HARBIN INST OF TECH

Green compact forming device

A green compact forming device includes: a reservoir of powder; a first forming roll and a second forming roll structured to be adjacent to each other at a predetermined interval, the powder fed to a gap between the two rolls, the powder compressed into a sheet shape by rotation of the two rolls to form a green compact, the second forming roll supporting and conveying the green compact on a circumferential surface; a first information acquisitor structured to acquire powder information regarding an amount of the powder stored in the reservoir; and a controller structured to control a circumferential speed of the second forming roll based on the powder information.
Owner:PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD

Fuel cell system

A fuel cell system (10) includes: a fuel cell module (30) including a fuel cell stack (31) that generates power using fuel gas supplied to an anode and oxidant gas supplied to a cathode, a combustion unit (32) that burns combustible gas introduced from a combustion gas inlet, and a heat-insulating module case (35) that accommodates the fuel cell stack (31) and the combustion unit (32); a hydrogen supply system (40) including a hydrogen supply line connected to a hydrogen inlet of the fuel cell module (30) connecting with an inlet of the anode and a hydrogen supply source (1), and a hydrogen blower (43) provided in the hydrogen supply line; and a circulation system (60) including a hydrogen off-gas line connected to a hydrogen off-gas outlet of the fuel cell module (30) connecting with an outlet of the anode, a heat exchanger (71) provided in the hydrogen off-gas line, a combustion gas line connected to the combustion gas inlet of the fuel cell module (30), and a reflux line connected to the hydrogen supply line, the circulation system (60) distributing hydrogen off-gas discharged from the outlet of the anode and having passed through the heat exchanger (71) to the combustion gas line and the reflux line, wherein the hydrogen supply system (40) includes a governor (44) provided upstream of the hydrogen blower (43) in the hydrogen supply line, the reflux line branches off from the hydrogen off-gas line and is connected between the hydrogen blower (43) and the governor (44) in the hydrogen supply line, a plurality of the fuel cell modules (30) are provided, a plurality of the hydrogen supply systems (40) and a plurality of the circulation systems (60) are provided so as to correspond one-to-one to the fuel cell modules (30), lengths of the respective reflux lines of the plurality of circulation systems (60) are the same, and lengths downstream of the hydrogen blower (43) in the respective hydrogen supply lines of the plurality of hydrogen supply systems (40) are the same.
Owner:AISIN CORP

Multi-stack series controllable fuel cell system, stack closing control method and vehicle

The invention provides a multi-stack series controllable fuel cell system, a stack closing control method and a vehicle, the system comprises a stack module, a high-voltage power module, a double-switch module, an air supply module, a hydrogen supply module and a thermal management module, the stack module comprises a plurality of stacks which are electrically connected in series, a series circuit between the negative electrode end of each electric pile and the positive electrode end of the next electric pile is marked as an electrical circuit, and the positive electrode end of the first electric pile is connected with the positive electrode end of the high-voltage power module to form the electrical circuit; the double-switch module comprises a first relay switch and a second relay switch; the first relay switch is configured for each galvanic pile and is arranged on an electrical circuit related to the positive end of the galvanic pile; the second relay switch is connected in parallel with the galvanic pile; the system further comprises a first electromagnetic valve module arranged between the air supply module and the electric pile module, a second electromagnetic valve module arranged between the hydrogen supply module and the electric pile module, and a third electromagnetic valve module arranged between the heat management module and the electric pile module. The service life of the system can be prolonged.
Owner:FOSHAN XIANHU LAB

Hydrogen leakage diffusion concentration monitoring test device and method for hydrogen fuel cell vehicle

The invention relates to the technical field of hydrogen energy safety, and provides a hydrogen fuel cell automobile hydrogen leakage diffusion concentration monitoring test device and method.The device comprises a hydrogen storage system, a flow control system, a data acquisition and storage control system and a leakage opening simulation device, the hydrogen storage system comprises a hydrogen cylinder, and the flow control system comprises a plurality of airflow channels arranged in parallel; one end of each gas flow passage is connected with the hydrogen storage system, the other end of each gas flow passage is connected with a leakage port of one leakage port simulation device, each gas flow passage is provided with a plurality of gas flow branches in parallel, and different gas flow branches regulate and control the leakage gas flow by controlling the gas flow or the pressure and the size of the leakage port in a combined manner; according to the automobile hydrogen leakage diffusion test system, the hydrogen leakage diffusion platform of the hydrogen fuel cell automobile and the data acquisition and storage control system are built, so that the diffusion characteristics of the automobile after hydrogen leakage can be tested and analyzed, and the result can assist in making a hydrogen leakage emergency scheme and preventing the occurrence of hydrogen leakage fire explosion.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Hydrogen supply system and new energy automobile

The invention relates to a hydrogen supply system and a new energy automobile. The system comprises a liquid hydrogen module and a gas hydrogen module, wherein the liquid hydrogen module and the gas hydrogen module are used for respectively providing hydrogen and high-pressure hydrogen subjected to first pressurization treatment for a pressurization module; the first side of the recovery module is connected with the liquid hydrogen module, and the recovery module is used for receiving recovered gas hydrogen discharged by the liquid hydrogen module and obtaining pressurized recovered gas hydrogen; the second side of the recovery module is connected with the gas hydrogen module and is used for transmitting the pressurized recovered gas hydrogen to the gas hydrogen module; the pressurizing module is used for performing second pressurizing treatment and third pressurizing treatment on the hydrogen subjected to the first pressurizing treatment and the high-pressure hydrogen to obtain pressurized target hydrogen; the buffer module is used for supplying the supercharged target hydrogen to the engine module. By adopting the hydrogen supply system, under the condition of low liquid hydrogen storage pressure, the liquid hydrogen supply pressure can be effectively maintained, stable operation of a fuel cell is guaranteed, meanwhile, evaporated hydrogen of the liquid hydrogen system is recycled, the energy utilization rate is increased, and then the power and cruising ability of a vehicle are guaranteed.
Owner:FAW JIEFANG AUTOMOTIVE CO

Fuel cell throttle, fuel cell system and fuel cell vehicle

The present invention discloses a fuel cell throttle, which includes a throttle body, an inlet and outlet arranged on both sides of the throttle body, and two closed valves arranged in the throttle body, the two closed valves are arranged opposite to each other up and down, and the two closed valves are respectively connected with elastic reset parts; the fuel cell throttle also includes a driving mechanism for driving the two closed valves to open, and the output execution end of the driving mechanism can be connected to the two closed valves in a transmission manner. The fuel cell throttle proposed in the embodiment of the present invention can open the upper and lower closed valves by air pressure when the driving mechanism loses power or fails, so that air flows from the throttle inlet to the throttle outlet, thereby avoiding damage to the battery stack due to excessive pressure. In addition, the present invention also proposes a fuel cell system and a fuel cell vehicle.
Owner:SFCC

Look ahead energy management and control systems and methods to improve fuel cell system performance, durability, and life

The subject matter described herein generally relates to look ahead energy management and control systems and methods for detecting, incorporating, and leveraging look ahead technology data to improve the performance, durability, and life of fuel cell systems.
Owner:CUMMINS INC

Turbo-evaporative cooled HT-PEM fuel cell system

A cooling system for a fuel-cell system onboard a vehicle such as an aircraft in one embodiment employs the latent heat of evaporation of a two-phase coolant to reduce mass and parasitic power requirements of the cooling system. In another embodiment the cooling system has a primary ambient air heat exchanger coolant loop for cooling the fuel-cell system, and a secondary coolant loop comprising a fluid circuit configured to circulate a coolant in thermal contact with a phase-change material (PCM) in thermal contact with the fuel-cell to absorb heat from the fuel-cell. The secondary coolant loop includes a heat pump for cooling the PCM.
Owner:ZEROAVIA LTD

Fuel cell system

A fuel cell system (10) includes: a plurality of power generation modules (30) each including a fuel cell stack (31) and a module case (35), the fuel cell stack (31) generating power with fuel gas supplied to an anode and oxidant gas supplied to a cathode, the module case (35) having a heat insulating property and housing the fuel cell stack (31); a plurality of fuel supply systems (40) including a plurality of fuel supply lines (41), respectively, each of the fuel supply lines (41) supplying the fuel gas to corresponding one of the plurality of power generation modules (30); a plurality of circulation systems (60) including a plurality of recirculation lines (63), respectively, each of the recirculation lines (63) causing fuel off-gas discharged from corresponding one of the plurality of power generation modules (30) to pass through corresponding one of heat exchangers (62) and then to be recirculated to corresponding one of the fuel supply lines (41); a plurality of condensed water tanks (66) each storing condensed water obtained by condensation in corresponding one of the heat exchangers (62) of water vapor contained in the fuel off-gas in corresponding one of the plurality of circulation systems (60); and a frame (21) that supports the plurality of power generation modules (30), the plurality of fuel supply systems (40), and the plurality of condensed water tanks (66), wherein the plurality of condensed water tanks (66) are installed in a space defined below installation positions of the plurality of power generation modules (30) in the frame (21).
Owner:AISIN CORP

Flow battery system and temperature management method thereof

The invention discloses a flow battery system and a temperature management method thereof, the flow battery system has indirect cyclic heating and cooling functions by arranging a two-stage heat exchange component and an auxiliary component, and the temperature of the flow battery system can be controlled by interlocking the indirect heating component or the cooling component and the auxiliary component with a pre-stack or post-stack temperature value. The preheating, heat dissipation and low-temperature protection of the positive or negative electrolyte in the standby process, the operation process and the long-time shutdown process of the flow battery system are realized; the heating component, the cooling component and the pre-stack temperature or the post-stack temperature can be subjected to double-closed-loop interlocking control, so that the heating rate or the cooling rate can be controlled. Through the implementation of the method, the uniformity of a temperature field in the electrolyte heat exchange process of the system is improved, the problems of decomposition or precipitation of active reaction substances and the like caused by overlarge local temperature difference of the electrolyte are avoided, and the adaptive capacity of the system when the load is greatly changed and the environment temperature is changed in a wide range can be enhanced; and the operation stability and reliability of the flow battery system are improved.
Owner:SUZHOU HUACHANG ENERGY TECH CO LTD

Flow type vanadium-based electric fuel energy storage and supply system

The invention discloses a flowing type vanadium-based electric fuel energy storage and supply system which comprises an electric pile reaction module, an electrolyte driving module and a medium storage module, and the electric pile reaction module comprises an oxygen evolution reaction flowing unit, a vanadium electrolyte flowing unit and an oxygen reduction reaction flowing unit which are arranged adjacently in pairs; a first flow field plate in the oxygen evolution reaction flow unit is provided with a bionic dendritic interdigital first flow channel; a second flow field plate in the vanadium electrolyte flowing unit is provided with a bidirectional spiral interdigital second flow channel; a third flow field plate in the oxygen reduction reaction flow unit is provided with a third multi-stage fractal interdigital flow channel; the medium storage module comprises a vanadium electrolyte storage tank and a reaction medium storage tank, the vanadium electrolyte storage tank and the reaction medium storage tank are arranged on the two opposite sides of the galvanic pile reaction module, the vanadium electrolyte storage tank is connected with the second flow field plate, and the reaction medium storage tank is connected with the second flow field plate and the third flow field plate. According to the system, the integration level of the system is improved on the basis of reducing the cost.
Owner:SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Fuel cell hydrogen supply control method and device and fuel cell system

The invention provides a fuel cell hydrogen supply control method, a fuel cell hydrogen supply control device and a fuel cell system, and relates to the technical field of fuel cell starting control, the method is used for a hydrogen supply control process of the fuel cell system, and the method does not need to additionally arrange a temperature sensor for a hydrogen proportional valve. Therefore, the duty ratio of the hydrogen proportional valve can be compensated in the low-temperature scene, the hydrogen supply control logic is simplified, and the problems that in the prior art, the cost is too high, and the control strategy is tedious are solved.
Owner:FTXT ENERGY TECH CO LTD

Catalytic-free solid hydrogen storage material hydrogen release system and application thereof

The invention relates to the technical field of hydrogen energy, in particular to a non-catalytic solid hydrogen storage material hydrogen release system and application thereof. The water storage unit is connected with the PEM hydrogen fuel cell reaction unit through a first pipeline; the non-catalytic hydrogen release unit is connected with the water storage unit through a second pipeline; a flow pump and a first electromagnetic valve are arranged on the second pipeline; the first electromagnetic valve is jointly controlled by a pressure sensor and a first flow controller; and the hydrogen buffer unit is connected with the non-catalytic hydrogen release unit and the PEM hydrogen fuel cell reaction unit through a third pipeline and a fourth pipeline respectively. The quick response and efficient hydrogen supply effects of the system are realized by utilizing the characteristic that the non-catalytic solid hydrogen storage material quickly releases hydrogen at a second level under the conditions of near room temperature and low pressure; wastewater generated by the PEM hydrogen fuel cell reaction unit is used as a reaction reagent of the non-catalytic hydrogen release unit, so that water circulation is realized, the amount of water initially carried by the system is reduced, and the weight of the system is reduced.
Owner:SHENZHEN UNIV +1

Multi-stack parallel controllable fuel cell system, stack closing control method and vehicle

The invention provides a multi-stack parallel controllable fuel cell system, a stack closing control method and a vehicle, and belongs to the technical field of fuel cells. The system comprises a galvanic pile module, a high-voltage power module, a single switch module, an air supply module, a hydrogen supply module and a thermal management module, the galvanic pile module comprises a plurality of galvanic piles which are electrically connected in parallel, and the positive electrode end of each galvanic pile is connected with the positive electrode end of the high-voltage power module to form an electrical circuit; the single switch module comprises a single switch unit configured for each galvanic pile, and the single switch unit comprises a relay switch and a unilateral diode which are arranged on an electrical circuit related to the positive end of the galvanic pile; the system further comprises a first electromagnetic valve module used for controlling the air supply module to independently provide air for the multiple electric piles, a second electromagnetic valve module used for controlling the hydrogen supply module to independently provide hydrogen for the multiple electric piles, and a third electromagnetic valve module used for controlling the heat management module to independently provide cooling liquid for the multiple electric piles. The service life of the fuel cell system can be prolonged.
Owner:FOSHAN XIANHU LAB

Multi-energy coupling and utilization system and method based on salt cavern hydrogen storage

The invention relates to the technical field of new energy storage and utilization, in particular to a multi-energy coupling and utilization system and method based on salt cavern hydrogen storage, and the system comprises a hydrogen storage salt cavern, a natural gas storage salt cavern and a carbon dioxide storage salt cavern; the water electrolysis hydrogen production unit utilizes electric power to drive an electrolytic bath to produce hydrogen, and the hydrogen is compressed and stored in a hydrogen storage salt cavity; the fuel cell power generation unit takes out hydrogen from the hydrogen storage salt cavern, generates power by using the hydrogen and transmits the power to a power grid; the natural gas blending combustion unit is used for mixing hydrogen in the hydrogen storage salt cavern and natural gas in the natural gas storage salt cavern according to a target proportion to form mixed gas, and sending the mixed gas into a natural gas pipeline network for blending; and the methanol synthesis unit is used for mixing hydrogen in the hydrogen storage salt cavern and carbon dioxide in the carbon dioxide storage salt cavern, preparing synthesis gas through a reverse water-gas shift reaction, and synthesizing methanol by using the synthesis gas. Therefore, the problems that the energy conversion efficiency is low, hydrogen, natural gas and carbon dioxide face challenges in space and the like are solved.
Owner:TSINGHUA UNIVERSITY

Reconfiguration of combustion engine powered haul truck with hybrid hydrogen fuel cell and battery power supply

A retrofit mining haul truck includes a hybrid hydrogen fuel cell / battery-based powerplant in place of a carbon fuel-based powerplant. The retrofit mining haul truck includes a frame, a tray coupled to the frame, and a deck coupled to the frame forward of at least a portion of the tray. A battery system is mounted to the deck of the retrofit mining haul truck. A hydrogen storage system (HSS) is installed in an engine bay volume of the retrofit mining haul truck. The engine bay was configured to contain a combustion engine (e.g., a diesel engine) prior to retrofitting the retrofit mining haul truck. At least a portion of a fuel cell system is installed in a wheel pocket of the retrofit mining haul truck. The wheel pocket was configured to contain a diesel tank prior to retrofitting the retrofit mining haul truck.
Owner:CUMMINS INC

Compact full-power coverage ejector structure

The invention discloses a compact type full-power coverage ejector structure, and relates to the technical field of ejector structures, the compact type full-power coverage ejector structure comprises a flow mixing cavity and a conveying cavity which are arranged in a communicating mode, and a nozzle used for conveying high-speed fluid is arranged at the end, away from the conveying cavity, of the flow mixing cavity; a secondary hydrogen flow inlet for conveying low-speed fluid is formed in the side wall of the mixed flow cavity; the nozzle comprises a conical section and a cylindrical section, wherein the conical section is close to the conveying cavity. According to the compact full-power coverage ejector structure, the nozzle, the partition plate, the needle valve and other structures are arranged, the opening degree of the nozzle is adjusted in real time through the pressure of high-speed fluid, accurate flow control within the full-power range is achieved, different load requirements of a fuel cell are met, and the flow rate is adjusted through the wide-range adjusting capacity of the nozzle. Full-power coverage from low load to full load is achieved, the problem that the efficiency of a traditional ejector is reduced when the load is low is solved, and the use efficiency of the compact full-power coverage ejector structure is improved.
Owner:NANTONG FUFANG HYDROGEN TECHNOLOGY CO LTD

Titanium-based hydrogen storage alloy material and preparation method and application thereof

The invention discloses a titanium-based hydrogen storage alloy material and a preparation method and application thereof. The element composition of the titanium-based hydrogen storage alloy material is Ti < 0.890 > Zr < 0.110 > Cr < 0.900 > Mn < 0.800 > Fe < 0.175 > (VFe) < 0.125 > + x wt.% Ce, and x ranges from 0 to 5. The titanium-based hydrogen storage alloy material has the characteristics of being easy to activate and excellent in hydrogen absorption and desorption performance (suitable in hydrogen absorption and desorption platform pressure, small in platform lag, large in reversible hydrogen storage capacity and fast in hydrogen absorption and desorption dynamics), and can meet the application conditions of kilowatt-level fuel cells of heavy machinery; the practical application of the Ti-based AB2 type hydrogen storage alloy in the aspect of kilowatt-level fuel cells is favorably widened.
Owner:SOUTH CHINA UNIV OF TECH

Systems and methods for storing, transporting, and using hydrogen

The present disclosure provides systems and methods for storing, transporting, and using hydrogen. In some embodiments, the method may comprise (a) storing hydrogen fuel in one or more fuel storage modules; (b) transporting the one or more fuel storage modules to a vehicle fueling site, wherein one or more hydrogen fuel compatible vehicles are located at or near the vehicle fueling site; (c) loading the one or more fuel storage modules into the one or more hydrogen fuel compatible vehicles, wherein the one or more fuel storage modules are configured to be releasably coupled to the one or more hydrogen fuel compatible vehicles; and (d) decoupling the one or more fuel storage modules from the one or more hydrogen fuel compatible vehicles after the one or more fuel storage modules are depleted or partially depleted.
Owner:SAS BEYOND AEROSPACE