Abstract: An odorant addition device for adding odorant to fuel gas in a gas system that consumes the fuel gas, the device including: an addition unit for adding the odorant to fuel gas to be consumed by the gas system; an environmental condition detection unit for detecting in the gas system an environmental condition regarding diffusion of odorant in fuel gas; and an addition adjustment unit for adjusting mode of odorant addition by the addition unit based on the environmental condition detected by the environmental condition detection unit. In this way, it is possible to detect leakage of fuel gas more reliably and improve safety dramatically, in a gas system that consumes the fuel gas as fuel.

Abstract: A fuel cell system includes a hydrogen path for supplying odorant-added hydrogen to the fuel cell, an estimating unit to estimate the depositing of the odorant in the fuel cell, and control unit to heat the fuel cell up to a temperature at which at least part of the odorant deposited in the fuel cell evaporates when the depositing of the odorant is estimated.

Abstract: Disclosed is a hydrogen supply apparatus which can mix an odorant with hydrogen gas even at a low temperature and can detect the leakage of the hydrogen gas. The apparatus comprises a gas storage means for storing hydrogen gas therein, an odorant-addition means for adding an odorant to the hydrogen gas fed from the gas storage means, and a temperature control means for controlling the temperature of at least one of the hydrogen gas stored in the gas storage means, the hydrogen gas fed from the gas storage means and the odorant.

Abstract: Disclosed is a hydrogen supply apparatus which can mix an odorant with hydrogen gas even at a low temperature and can detect the leakage of the hydrogen gas. The apparatus comprises a gas storage means for storing hydrogen gas therein, an odorant-addition means for adding an odorant to the hydrogen gas fed from the gas storage means, and a temperature control means for controlling the temperature of at least one of the hydrogen gas stored in the gas storage means, the hydrogen gas fed from the gas storage means and the odorant.

Abstract: The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell.

Abstract: The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell.

Abstract: The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell.

Abstract: An odorant addition device for adding odorant to fuel gas in a gas system that consumes the fuel gas, the device including: an addition unit for adding the odorant to fuel gas to be consumed by the gas system; an environmental condition detection unit for detecting in the gas system an environmental condition regarding diffusion of odorant in fuel gas; and an addition adjustment unit for adjusting mode of odorant addition by the addition unit based on the environmental condition detected by the environmental condition detection unit. In this way, it is possible to detect leakage of fuel gas more reliably and improve safety dramatically, in a gas system that consumes the fuel gas as fuel.

Abstract: A fuel cell system includes a hydrogen path for supplying odorant-added hydrogen to the fuel cell, an estimating unit to estimate the depositing of the odorant in the fuel cell, and control unit to heat the fuel cell up to a temperature at which at least part of the odorant deposited in the fuel cell evaporates when-the depositing of the odorant is estimated.

Abstract: Disclosed is a hydrogen supply apparatus which can mix an odorant with hydrogen gas even at a low temperature and can detect the leakage of the hydrogen gas. The apparatus comprises a gas storage portion which stores hydrogen gas therein, an odorant-addition portion which adds an odorant to the hydrogen gas fed from the gas storage portion, and a temperature control portion which controls the temperature of at least one of the hydrogen gas stored in the gas storage portion, the hydrogen gas fed from the gas storage portion and the odorant.

Abstract: The present invention provides a technology related to a fuel cell system capable of adjusting a discharge amount of an odorant discharged to an outside of a moving body according to a state of the moving body. The fuel cell system mounted to a moving body includes: a fuel cell which generates electric power by electrochemically reacting a hydrogen gas with an oxidation gas; and a adjusting portion which adjusts an amount of an odorant to be discharged to an outside of the moving body according to a state of the moving body, the odorant being included in an anode off-gas discharged from an anode side of the fuel cell.