| 摘要 |
PROBLEM TO BE SOLVED: To individually optimize the energy (electric power and heat source) use ratio of the fuel battery in a sunlight utilization system including a water decomposition unit and a fuel battery unit.SOLUTION: A sunlight utilization system 1 comprises: a hydrogen storage unit 31 for storing hydrogen produced in a water decomposition unit 3; an oxygen storage unit 33 for storing oxygen produced in the water decomposition unit 3; a hydrogen supply path 4 for supplying hydrogen stored in the hydrogen storage unit 31 to the hydrogen electrode of a fuel cell 20; an oxygen supply path 6 for admixing oxygen stored in the oxygen storage unit 33 to air supplied to the fuel cell 20; hydrogen pressure control units V5, V11, 50 for controlling the pressure of hydrogen supplied to the fuel cell 20; and oxygen pressure control units 13, V8, V12, 50 for controlling the pressure of oxygen supplied to the fuel cell. |
