摘要:
A method for controlling a fuel cell system is a method for controlling a fuel cell system including a solid oxide fuel cell which generates a power upon receiving supplies of an anode gas and a cathode gas. The method for controlling the fuel cell system includes; as a stop control of the fuel cell, stopping a supply of the anode gas while continuing a supply of the cathode gas to the fuel cell, and shutting off a discharge side of an anode of the fuel cell; and carrying out an additional control to supply the anode gas to the fuel cell during the stop control and/or an additional control to decrease the flow rate of the cathode gas during the stop control.
摘要:
Provided are a fuel cell that employs a fuel-electrode collector excellent in terms of thermal conductivity and the like, so that it is excellent in terms of power generation efficiency and cost effectiveness; and a method for operating the fuel cell. Included are a membrane electrode assembly (MEA), a fuel-electrode collector that is a porous metal body disposed in contact with a fuel electrode and performing current collection, and a heating device operated by electric power, wherein a solid electrolyte is a proton-permeable electrolyte, a fuel-gas channel is provided to cause a fuel gas to pass through the fuel-electrode collector, and the porous metal body constituting the fuel-electrode collector is formed of aluminum or aluminum alloy.
摘要:
This invention provides a system and a method for safe production of electrolyte at required concentration on site on demand where occasionally only water is needed to be filled up. The system includes two main units: a saturated electrolyte unit and a diluted electrolyte unit.
摘要:
A system and method for operating a fuel cell system to control an amount of degradation to the fuel cell system. The fuel cell system is operative to switch between two or more power sources to provide power to a load. The switching is designed to minimize degradation of a fuel cell of the fuel cell system.
摘要:
A solid oxide fuel cell capable of extending the time period over which initial rated output power is maintained, while restraining increases in running cost. The present invention is a solid oxide fuel cell (1), having a fuel cell module (2) furnished with multiple fuel cell units, a fuel supply device (38), an oxidant gas supply device (45), and a controller (110) for controlling the amount of fuel supplied; the controller is furnished with a degradation determining circuit (110a) for determining degradation, and a fuel correction circuit (110b) for correcting the fuel supply amount based on the degradation determination; when it is determined that the fuel cell module has degraded, the fuel correction circuit executes a correction so that rated output power is maintained, and when the predetermined correction switching condition is satisfied, the fuel correction circuit executes a correction to reduce the fuel cell module rated output power.
摘要:
A method for measuring an electrolyte balance of a redox flow battery may include: charging the redox flow battery by applying a current to a stack; measuring temperatures of an anode electrolyte solution and a cathode electrolyte solution while the redox flow battery is charged; calculating a temperature change rate of the anode electrolyte solution over time and a temperature change rate of the cathode electrolyte solution over time; deciding a first change time corresponding to an inflection point of the temperature change rate of the anode electrolyte solution over time and a second change time corresponding to an inflection point of the temperature change rate of the cathode electrolyte solution over time; and calculating an average electrolyte oxidation number of the redox flow battery, using the first change time, the second change time, an oxidation number of the anode electrolyte and an oxidation number of the cathode electrolyte.
摘要:
A method of cleaning power cells in an array of power cells, comprising coupling at least one first power cell to second power cells in an array of power cells and causing the second power cells to drive the at least one first power cell with a voltage to clean catalyst on the at least one first power cell.
摘要:
A fuel cell system (100) includes: a reforming section (33) generating fuel from water for reforming and a raw reforming material; a raw reforming material feeding section (11a5) feeding the raw reforming material to the reforming section; a fuel cell (34) generating electricity using the fuel and an oxidant gas; a combusting section (36) combusting a combustible component from a fuel electrode of the fuel cell using the oxidant gas; an ignition device (36a2) causing the combustible component fed to the combusting section to be ignited; an oxygen proportion adjusting section adjusting an oxygen proportion of the gas introduced into the combusting section when the combustible component is ignited, to become a correction oxygen proportion allowing the combustible component to be ignited and combusted; and an oxygen proportion changing section changing the oxygen proportion from the correction oxygen proportion to a normal oxygen proportion when a defined condition is satisfied.
摘要:
L'invention porte sur un procédé de détermination d'une distribution spatiale ( k x , y f ) d'un paramètre d'intérêt (k) représentatif d'une perméabilité d'une couche de diffusion d'au moins une électrode d'une cellule électrochimique, comprenant les étapes dans lesquelles on détermine une distribution spatiale ( k x , y f ) du paramètre d'intérêt (k) en fonction de la distribution spatiale ( Q x , y e ) d'une seconde grandeur thermique (Q e ) préalablement estimée à partir de la distribution spatiale ( T x , y C ) d'une température de consigne (T C ) et de la distribution spatiale ( D x , y r ) d'une première grandeur thermique (D r ).