摘要:
A fuel cell system (100) includes: a reformer (1) configured to generate a hydrogen-containing gas through a reforming reaction by using a raw material and steam; a raw material supply device (2) configured to supply the raw material to the reformer; a steam supply device (3, 4) configured to supply the steam to the reformer; a temperature detector (5) configured to detect a temperature of the reformer; a fuel cell (7) configured to generate electric power by using the hydrogen-containing gas; a combustor (6) configured to combust the hydrogen-containing gas discharged from the fuel cell to heat the reformer; and a controller (10) configured to, while controlling the raw material supply device such that the temperature detected by the temperature detector becomes a target temperature, control the steam supply device such that a change rate of a steam supply amount to the reformer becomes less than a change rate of a raw material supply amount to the reformer.
摘要:
A fuel cell system (1) includes a fuel cell (7), an electromagnetic diaphragm pump (8), a flow detector (9), and a controller (20). The controller is configured to set the frequency of the AC voltage (applied AC voltage) applied to the electromagnetic diaphragm pump, control the voltage of the applied AC voltage in the set frequency to cause the flow rate of the gas detected by the flow detector to reach a target flow rate; and the controller is configured to newly set the frequency of the applied AC voltage to a frequency at which the voltage of the applied AC voltage becomes smaller than a predetermined voltage when the voltage of the applied AC voltage becomes equal to or greater than the predetermined voltage.
摘要:
A fuel cell system of the present invention comprises a fuel processor (41); a fuel cell stack (60); a first water tank (1); a combustor (42); a water discharge passage (31) connected to a water drain port (76) formed in the first water tank (1) to discharge the water from inside of the first water tank (1); a water filling detector configured to detect that at least one of the water drain port (76) and the water discharge passage (31) is filled with water; a water supply unit (2) for supplying the water to the first water tank (1); and a controller (10) configured to, before power generation is performed in the fuel cell stack (60), execute a water filling step of supplying the water to the first water tank (1) by activating the water supply unit (2), supply the combustible gas to the combustor (42) via the first water tank (1) and cause the combustor (42) to combust the combustible gas, when the water filling detector detects that at least one of the water drain port (76) and the water discharge passage (31) is filled with water, in the water filling step.
摘要:
To provide a fuel cell device capable of extending the years of service life of a reformer by suppressing thermal runaways. The present invention is a solid oxide fuel cell device (1), including a fuel cell module (2) having multiple fuel cell units (16); a reformer (20b) disposed above the fuel cell units, for producing hydrogen by a partial oxidation reforming reaction and a steam reforming reaction; a vaporizing chamber (20a) disposed adjacent to the reformer; a combustion chamber (18) for heating the vaporization chamber; a water supply device; a supply device for oxidant gas for electrical generation; and a controller (110) for raising the fuel cell unit to a temperature at which electrical generation is possible; wherein fuel electrodes in each individual fuel cell unit are constituted to act as catalysts for a shift reaction, and the controller executes only the ATR step and SR step in the reformer.
摘要:
A power generator according to the present invention includes a fuel cell system (101), a combustion system (102), and a controller (103). The fuel cell system (101) includes: a fuel cell (11); a reformer (10) configured to generate a fuel through a reforming reaction between a first raw material containing a hydrocarbon and a second raw material which is water or an oxidant; a first raw material supply device (12); a second raw material supply device (13); and an oxidant supply device (14). The combustion system (102) includes: a first combustor (21); a third raw material supply device (22); a first air supply device (23); and a frame rod (24). The controller (103) controls the first raw material supply device (12) and the second raw material supply device (13) based on an amount of the first raw material supplied to the first combustor (21) and an ionizing current value, such that an amount of the first raw material supplied to the reformer (10) and an amount of the second raw material supplied to the reformer (10) are in a predetermined ratio.
摘要:
A solid oxide fuel cell system 1 comprises a fuel cell main body 20 provided with a gas reformer 22 and a fuel cell 20, a reforming gas supply means 12 for supplying a reforming gas to the gas reformer 22, an oxygen-containing gas supply means 13 for supplying an oxygen-containing gas to the gas reformer 22, a water supply means 14 for supplying water or steam to the gas reformer 22 and an ambient temperature sensor 70 for detecting a temperature outside of the solid oxide fuel cell system 1. The system further comprises a control means 15 for controlling during operation of the fuel cell 21 whether, based on a signal from the ambient temperature sensor 70, for carrying out a reforming reaction of the reforming gas with the oxygen-containing gas and/or water in the gas reformer 22, switching between an oxygen-containing gas supply means 13 and water supply means 14 is carried out, or both the supply means 13, 14 are used in combination.
摘要:
A power generation system according to the present invention includes: a fuel cell system (101) including a fuel cell (11) and a case (12); a ventilation fan (13); a controller (102); a combustion device (103); and a discharge passage (70) formed to cause the case (12) and an exhaust port (103A) of the combustion device (103) to communicate with each other and configured to discharge an exhaust gas from the fuel cell system (101) and an exhaust gas from the combustion device (103) to the atmosphere through an opening of the discharge passage (70), the opening being open to the atmosphere, and the ventilation fan (13) is configured to discharge a gas in the case (12) to the discharge passage (70) to ventilate the inside of the case (12), and the controller (102) causes the ventilation fan (13) to generate predetermined pressure or higher when the fuel cell system (101) is in a power generation stop state and the combustion device (103) is operating.