Nuclear Fission

Nuclear fission ,[object Object],energy proton neutron U-235 nucleus Kr-90 nucleus Ba-144 nucleus

Nuclear chain reaction ,[object Object],proton neutron U-235 nucleus

The chain reaction is not slowed down Uncontrolled nuclear reaction a huge amount of energy is released very quickly the rate of fission increases rapidly Nuclear bomb

Nuclear reactors ,[object Object],the Daya Bay Nuclear Power Station Simulation: Nuclear power plant

Schematic diagram of a nuclear plant control rods fuel rods reactor pressure vessel water (cool) water (hot) water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (low pressure) turbine electric power steam generator steam (high pressure) pump primary loop secondary loop generator reactor core pump

control rods reactor pressure vessel water (cool) water (hot) water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (low pressure) turbine electric power steam generator steam (high pressure) pump primary loop secondary loop fuel rods ,[object Object],[object Object]

control rods reactor pressure vessel water (cool) water (hot) water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (low pressure) turbine electric power steam generator steam (high pressure) pump primary loop secondary loop fuel rods ,[object Object],[object Object],[object Object],[object Object],[object Object]

control rods reactor pressure vessel water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (low pressure) turbine electric power pump primary loop secondary loop fuel rods ,[object Object],[object Object],water (hot) water (cool) steam generator steam (high pressure)

steam generator control rods reactor pressure vessel water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (high pressure) pump primary loop secondary loop fuel rods ,[object Object],[object Object],water (hot) water (cool) steam (low pressure) turbine electric power generator

control rods fuel rods reactor pressure vessel water (cool) water (hot) water (high pressure) water (low pressure) coolant out coolant in steam condenser steam (low pressure) turbine electric power steam generator steam (high pressure) pump primary loop secondary loop ,[object Object]

Nuclear waste 核廢料 ,[object Object],[object Object], Radioactive waste must be stored carefully.

[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],High level radioactive waste 高危險性核廢料

Nuclear fusion ,[object Object],H-2 + H-3  He-4 + n + energy proton neutron helium nucleus neutron energy deuterium nucleus tritium nucleus

[object Object],[object Object],Atomic nuclei are positively charged and repelled each other. How can two nuclei fuse together ?

[object Object],[object Object]

[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],What are the advantages of fusion power?

Nuclear Fission

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Nuclear Fission