Transcript Nuclear Fusion.ppt

Nuclear Fusion
Fusion Reaction
Deuterium
Tritium
n
n
+
n
+
FUSION!
Very Unstable!!
Fusion Reaction
Very Unstable!!
n
n
+
Helium atom (alpha)
+
n
ENERGY!!
Therefore, bonds need to
reform to stable atoms and
release energy
neutron
Fusion
• Occurs at very high temperatures
40,000,000 K
• That’s why that darn sun is so hot!!
• Cold fusion could still be possible energy
source in the future
Nuclear Fission
Fission Video
• Neutron accelerates into an atom
(Uranium)
• Produces more reactions (chain reaction)
• Continues until no more Uranium
Fission Reactions
Nuclear Reactors
Steam moving generator
for energy
Nuclear Reactor
Control Fission
Control Rods
- Absorb unwanted neutrons
to help control chain reaction
Why have there been nuclear
accidents?
• Control rods are located at
bottom (instead of top) of
reactor. Why important?
Why Nuclear so Bad?
• Radioactive waste is being stored in sea
beds and land (Nevada/Utah)
• Half-life of most waste are over 100,000
years
• Uranium is NOT renewable