摘要:
A hydrogen supplying apparatus mounted on an electric vehicle. The electric vehicle is driven by electricity generated at a fuel cell by an electrochemical reaction between hydrogen stored in a hydrogen storage tank and oxygen. The hydrogen supplying apparatus includes: a hydrogen supply passage for supplying hydrogen from the hydrogen storage tank to the fuel cell; a bypass passage arranged in parallel with the hydrogen supply passage and for supplying hydrogen to the fuel cell; a purifier provided in the bypass passage, the purifier purifying hydrogen to be supplied to the fuel cell; and a switch valve selectively switching the hydrogen supply passage and the bypass passage.
摘要:
A hydrogen storage apparatus M stores a liquid hydrogen tank 1, hydrogen filling passage 3 that fills liquid hydrogen in to the liquid hydrogen tank, a degassing passage 4 provided with a relief valve V1 that opens when the pressure of hydrogen gasified in the liquid hydrogen tank reaches a predetermined level, and a hydrogen occlusive tank 2 that accommodates a hydrogen occlusive alloy 21 for storing the gasified hydrogen. When liquid hydrogen is being filled into the liquid hydrogen tank 1, the pressure in the hydrogen occlusive tank 2 is lowered using a duct 51, a cooling fan 52, and a conduit 54 for cooling the hydrogen occlusive tank 2. Accordingly, the filling time is shortened and the fuel efficiency is improved.
摘要:
In a fuel cell system 4 in which electricity is generated by a fuel cell 4 supplied with the hydrogen gas created from a reforming reaction and the electricity is supplied to an external load 12, an electric buffer CAPA for storing surplus electricity or supplementing insufficient electricity is located between the fuel cell 4 and the external load 12, and a hydrogen buffer MHB for accommodating surplus hydrogen gas and supplementing insufficient hydrogen gas is located between a reforming device 2 and the fuel cell. Where electricity consumption in the load 12 increases abruptly, necessary electricity is supplied with the assistance of the electric buffer CAPA and hydrogen buffer HMB.
摘要:
A boil-off gas processing system for reliably burning a boil-off gas. The system processes a boil-off gas produced from a liquid hydrogen tank which is built in a hydrogen fueled vehicle. The system includes a mixing device for introducing air into a discharge passage through which the boil-off gas from the liquid hydrogen tank passes and for mixing the air and the boil-off gas and outputting a mixed gas; a catalytic combustor for burning the mixed gas which was mixed by the mixing device, the catalytic combustor having an inlet through which the mixed gas is introduced and an outlet for discharging combustion gas; an electric heater provided at the inlet side of the catalytic combustor; and a control section for controlling energizing of the electric heater.
摘要:
A hydrogen supplying device for a fuel cell includes a hydrogen occlusion tank in which a hydrogen occlusion alloy is contained, the hydrogen occlusion alloy being capable of occluding and discharging hydrogen which is used as fuel for a fuel cell; a hydrogen tank in which hydrogen to be supplied to the fuel cell can be stored in a compressed state; a heating unit which supplies heat to the hydrogen occlusion tank; a hydrogen supply line through which a flow of hydrogen supplied from the hydrogen occlusion tank and a flow of hydrogen supplied from the hydrogen tank can be merged to be supplied to the fuel cell; and a flow rate controlling device which controls a flow rate of hydrogen supplied from the hydrogen occlusion tank and/or a flow rate of hydrogen supplied from the hydrogen tank.
摘要:
In order to achieve optimal weight and volume of a hydrogen storage apparatus, there is provided a method of charging hydrogen to a hydrogen storage apparatus. The hydrogen storage apparatus 1 includes a hydrogen storage means accommodating a hydrogen occlusive alloy (MH tank assembly) 3, and a hydrogen tank (high-pressure hydrogen tank) 2 that is provided separately from the hydrogen storage means 3 and stores hydrogen in gaseous form. Hydrogen is filled so that a pressure in the hydrogen tank is higher than that in the hydrogen storage means. A decompressing means (charger regulator) 6 is provided for reducing a pressure of hydrogen fed to the hydrogen storage apparatus 1 to maintain the pressure in a predetermined pressure range. The hydrogen storage apparatus 1 may include more than one of the hydrogen occlusive alloy tank (MH tank) 31.
摘要:
The object of the invention is to provide a high performance metal hydride tank apparatus, which is capable of discharging the hydrogen gas stored in the metal hydride in the tank from throughout the metal hydride efficiently and rapidly. In the process of the hydrogen gas discharge, the metal hydride contained near the inner circumferential surface of the tank absorbs the heats by the temperature raised tank and starts discharging the hydrogen gas. The discharged hydrogen gas absorbs the heat from the inner circumferential wall efficiently, flowing along the inner circumferential wall rapidly guided by the cylinder-like baffle. Further, the discharged hydrogen gas flows through the hydrogen gas flow channel, which is formed into sections by the cylinder-like baffle in the tank, and travels throughout the metal hydride, thus heating up the metal hydride rapidly and discharging the hydrogen gas efficiently from throughout the alloy.
摘要:
Hydrogen stored in a high-pressure tank 21 is supplied to a metal hydride (MH) tank 31 to be occluded. Cooling water of a cooling system C1 for a fuel cell 10 is heated through the heat generated at this time to warm-up the fuel cell. By such a configuration, the fuel cell can be warmed up without consuming the valuable hydrogen.
摘要:
In a hydrogen concentration detecting method of detecting whether the hydrogen concentration is equal to or higher than a reference concentration; using a hydrogen detecting apparatus 1 comprising a detecting element 4 made of a hydrogen absorbing alloy, a microheater 2, a substrate 3, and a strain gauge 6, where the operation of the microheater 2 is halted during a normal state; however, once the strain gauge 6 detects a volume change of the detecting element 4, the microheater 2 starts heating the detecting element 4.
摘要:
A hydrogen replenishing device is provided with a plurality of hydrogen storage devices which are provided with hydrogen absorbing alloys of which storage pressure are different, a reformer which supplies a hydrogen to the hydrogen storage device which is provided the hydrogen absorbing alloy of which has low storage pressure, paths for replenishing a hydrogen to the compressed hydrogen tank which serves for the hydrogen absorbing alloy which has high storage pressure to absorb the highly compressed hydrogen via the path for replenishing the hydrogen storage devices, and valves which are disposed in the paths. By doing this, it is possible to reduce an installation space for the hydrogen replenishing device which can reduce a consumed energy.