摘要:
There is provided a hydrogen storage and/or supply device utilizing an organic compound medium capable of being repeatedly hydrogenated and dehydrogenated. This device comprises: a catalyst member formed of a stack of a plurality of catalyst plates for storing and/or releasing hydrogen through a chemical reaction of the organic compound medium by means of a metal catalyst; a heat collector plate for supplying heat from a heat source to the catalyst member; and a heat transfer portion in contact with the plurality of catalyst plates and the heat collector plate. Each catalyst plate includes: the metal catalyst; a substrate; a catalyst support formed on at least one face of the substrate for supporting the metal catalyst; and a flow channel for passing the organic compound medium therethrough. Furthermore, the heat transfer portion has a thermal conductivity higher than that of the catalyst support.
摘要:
A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.
摘要:
A hydrogen engine system for driving an engine with hydrogen gases as a fuel comprises a hydrogenated liquid fuel tank, which holds a hydrogenated liquid fuel in a liquid phase, a preheater, to which the hydrogenated liquid fuel and a dehydrogenated fuel from the hydrogen feed unit are transported and which preheats the hydrogenated liquid fuel owing to heat exchange, an vaporizer, to which the hydrogenated liquid fuel as preheated and exhaust gases of the engine are transported and which heats the hydrogenated liquid fuel to put the same in a vapor phase, and a hydrogen feed unit, to which the hydrogenated liquid fuel as vaporized and exhaust gases of the engine are transported and which generates hydrogen gases owing to dehydrogenation to transport the same to the engine.
摘要:
An object of the present invention is, in an engine system including a medium which chemically repeats storage and release of hydrogen, to provide an engine system where CO2 emissions can be suppressed and system efficiency is excellent.The engine system includes a hydrogen supply device for producing hydrogen rich gas from a medium which chemically repeats the storage and release of hydrogen, and drives an engine using the hydrogen rich gas produced in the hydrogen supply device as one of the fuels. This engine system is characterized by comprising a waste heat supply device for supplying waste heat of the engine to the hydrogen supply device, a generator which generates electricity by power of the engine, an energy storage device for storing electric power produced by the generator, and a motor for converting electric power discharged from the energy storage device into power.
摘要:
An engine system includes a medium which chemically repeats storage and release of hydrogen to provide an engine system where CO2 emissions can be suppressed and system efficiency is excellent. The engine system includes a hydrogen supply device for producing hydrogen rich gas from a medium which chemically repeats the storage and release of hydrogen, and drives an engine using the hydrogen rich gas produced in the hydrogen supply device as one of the fuels. This engine system is characterized by comprising a waste heat supply device for supplying waste heat of the engine to hydrogen supply device, a generator which generates electricity by power of the engine, an energy storage device for storing electric power produced by the generator, and a motor for converting electric power discharged from the energy storage device into power.
摘要:
Disclosed is an engine system with a reformer, the engine system comprising a reformer and driving an engine using, as a fuel, a reformed fuel produced by reforming pre-reformed fuel with the reformer, in which the reformer is connected with both a pre-reformed fuel supply adjustment unit which adjusts the amount of the pre-reformed fuel supplied to the reformer and a reformed fuel supply adjustment unit which adjusts the amount of reformed fuel supplied to the engine, and the reformer is installed adjacent to the engine combustion chamber via the reformed fuel supply adjustment unit.
摘要:
In an engine system with a reformer being installed in an exhaust pipe to reform a fuel, a control valve for controlling a flow rate of exhaust gas is provided downstream from an installed position of the reformer in the exhaust pipe. In the engine system with the reformer, since a part of the exhaust gas can be trapped in a space between the reformer and an engine chamber by closing the control valve during an exhaust stroke, the reforming efficiency of the reformer can be heightened.
摘要:
An engine system in which hydrogen is employed as a fuel, including a reactor configured to cause a reaction using a catalyst, in which the reactor is constituted by alternately disposing plural exhaust passages and plural fuel passageways of the engine system with a wall interposed therebetween; at least one carrier configured to carry the catalyst and to be formed in a substantially rectangular plate shape is fitted in at least one of fuel passageways; and the carrier is provided with a plate portion which has a surface disposed in a fuel flowing direction and is formed in a substantially rectangular plate shape and at least one slit portion which divides the surface of the plate portion in the fuel flowing direction.
摘要:
An engine system comprising an engine, hydrogen medium capable of repeating chemically storing and discharging hydrogen, an exhaust gas pipe from said engine; and a reactor unit bearing a catalyst; wherein the hydrogen generated using the heat of the exhaust gas in said reactor unit or the mixture of the hydrogen and said hydrogen medium being supplied to said engine; wherein said reactor unit includes at least first reactor and second reactor in said exhaust gas pipe and each of said reactors comprises a partition wall disposed between an exhaust gas passage and a hydrogen medium passage; and wherein the thermal resistance of said partition wall of said first reactor positioned on the upstream side is larger than that of said second reactor positioned on the downstream side, and said hydrogen medium is supplied from said first reactor to said second reactor.
摘要:
It is an object of the invention to provide an engine system using a small-sized heat exchanger having a high efficiency and a stable performance for heating and vaporizing a hydrogen medium supplied to a reactor vessel. The engine system includes an engine having an intake pipe for taking in air for combustion thereinto and an exhaust pipe for exhausting exhaust gas therefrom, a reactor vessel with a catalyst supported therein for decomposing a hydrogen medium which contains hydrogen in molecules thereof and of which the hydrogen can be taken out by a chemical reaction, a hydrogen medium tank storing the hydrogen medium, a high-pressure pump for pressurizing and transporting the hydrogen medium, a first heat exchanger for exchanging heat with the hydrogen medium in a liquid state, a second heat exchanger for exchanging heat with the hydrogen medium in a gas state, and a back pressure valve for depressurizing and vaporizing the hydrogen medium, disposed in a hydrogen medium flow path between the first heat exchanger and the second heat exchanger, wherein the reactor vessel is disposed in the exhaust pipe so that the reactor vessel can exchange heat with the exhaust pipe, and wherein the high-pressure pump, the first heat exchanger, and the second heat exchanger are arranged in the hydrogen medium flow path for transporting the hydrogen medium from the hydrogen medium tank to the reactor vessel in this order from an upstream side in the hydrogen medium flow path.