摘要:
A fuel cell system according to the present disclosure includes a hydrogen generator that generates a hydrogen-containing gas from a source gas, a source gas supplier that supplies the source gas to the hydrogen generator, an oxidant gas supplier that supplies an oxidant gas necessary for combustion, a fuel cell that generates power by using the hydrogen-containing gas based on a power generation command, a combustor that is configured to combust an off-fuel gas, which is the hydrogen-containing gas that has not used in the fuel cell, and heats the hydrogen generator, a measurement unit that measures a flame current in the combustor, and a control device that performs protection control for controlling at least one of a supply amount of the source gas by the source gas supplier, a supply amount of the oxidant gas by the oxidant gas supplier, and an output from the fuel cell in a case where the value of the flame current measured by the measurement unit becomes lower than a first predetermined value.
摘要:
Provided is hydrogen generator (14) including: raw material gas supply device (5) that supplies a raw material gas containing a sulfur compound; first desulfurization unit (2) that is composed of at least one desulfurizer (2a, 2b) connected to upstream of raw material gas supply device (5) while being filled with a desulfurizing agent for removing the sulfur compound contained in the raw material gas supplied by raw material gas supply device (5); second desulfurization unit (4) that is composed of at least one desulfurizer (4a, 4b) disposed downstream of first desulfurization unit (2) while being filled with a desulfurizing agent for removing the sulfur compound contained in the raw material gas; reforming unit (6) that generates a hydrogen-containing gas by reforming reaction between the raw material gas with the sulfur compound removed and water; and flow rate detector (3) that is disposed between first desulfurization unit (2) and second desulfurization unit (4) to measure a flow rate of the raw material gas flowing out of first desulfurization unit (2).
摘要:
There is provided a power system (100) including a controller (102), a combustion apparatus (103), and a discharge passage (70) which causes a housing (12) and an air outlet of the combustion apparatus (103) to communicate with each other. The power system (100) further includes an air discharger for discharging air inside a fuel cell system (101) into the discharge passage (70), a reverse flow prevention device (21) that is disposed in the discharge passage (70) or a ventilation passage (75), and a combustible gas detection sensor (20) that detects combustible gas present inside the housing (12). The controller (102) operates the air discharger, while the air discharger is stopped and when the combustible gas detection sensor (20) continuously detects the combustible gas having first concentration or higher concentration during a first period of time, or in every predetermined period. In a state where the air discharger is operated, the controller (102) determines that the power system (100) is abnormal, or gives a notification of the abnormality and when the combustible gas detection sensor (20) continuously detects the combustible gas having second concentration or higher concentration during a second period of time.