Nuclear energy is the energy
stored in the nucleus of an
atom and released through
fission, fusion and
radioactivity
There are two types of
nuclear energy
1. Nuclear Fission
2. Nuclear Fusion
NUCLEAR
FISSION
When a particle of sufficient
energy is shot on to a
heavier nucleus the nucleus
splits and releases energ...
When Uranium 235 nucleus is bombarded
with a neutron
0n1
+ 92U235

Fission of U235
When an Uranium nucleus
undergoes fission, neutrons are
released. These neutrons in turn
split the surrounding uranium
nuc...
CHAIN REACTION
Controlled fission reaction
Example for
nuclear fission
ATOM BOMB
On Aug 6 1945 a Uranium
bomb was dropped on the
city of Hiroshima killing
1.5 lakhs of people. Here
is the picture of that...
Another bomb was dropped
at Nagasaki on Aug 9 killing
thousands of people. Here
is the picture of that bomb.
Length: Appro...
A device that is used to
produce nuclear energy by
controlled fission reaction is
called nuclear reactors
There two types of nuclear
reactors
• Pressurized Water Reactor
• Boiling Water Reactor
Pressurized Water Reactor
Boiling Water Reactor
In India Pressurized Water Reactors
are used.
Mentioned below are some reactors
present in India
First nuclear reactor in Asia
– Apsara
Tarapur India’s First nuclear
Power Station
Rawatbhata India’s first
commercial nuclear reactor
Kalpakkam Mini Reactor
Narora Atomic Power Station
Advanced Heavy Water Reactor
Parts Common to all reactors
• REACTOR CORE – Part of the reactor where
fuel is kept
• FUELS – Commonly used fuels are Ura...
• MODERATORS – Materials used to
slow down neutrons
e.g. – Heavy Water (D2O), Graphite
• CONTROL RODS – Used to control
th...
• SHIELD TO PROTECT
RADIATION – protect living
organism from harmful rays like
gamma, some shields made of
thick lead and ...
• COOLANTS – To reduce the heat
generated as part of reaction,
some fluids like high pressure
water liquids, metals and ga...
NUCLEAR FUSION
The process of merging two
or more light nuclei to form
a heavier nucleus is called
NUCLEAR FUSION
Deuterium is a hydrogen
isotope with mass number
2.At very high temperature
Deuterium nuclei with high
kinetic energy fuse...
Example for nuclear fusion
Energy liberated from sun,
stars etc
Figures are given below
Galaxy
Energy Liberated from Sun
Nuclear energy1
Nuclear energy1
Upcoming SlideShare
Loading in …5
×

Nuclear energy1

789
-1

Published on

sample ppt

Published in: Science, Technology, Business
0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
789
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
43
Comments
0
Likes
1
Embeds 0
No embeds

No notes for slide

Nuclear energy1

  1. 1. Nuclear energy is the energy stored in the nucleus of an atom and released through fission, fusion and radioactivity
  2. 2. There are two types of nuclear energy 1. Nuclear Fission 2. Nuclear Fusion
  3. 3. NUCLEAR FISSION When a particle of sufficient energy is shot on to a heavier nucleus the nucleus splits and releases energy. This reaction is called NUCLEAR FISSION
  4. 4. When Uranium 235 nucleus is bombarded with a neutron 0n1 + 92U235 
  5. 5. Fission of U235
  6. 6. When an Uranium nucleus undergoes fission, neutrons are released. These neutrons in turn split the surrounding uranium nuclei releasing neutrons in each reaction. This is called CHAIN REACTION
  7. 7. CHAIN REACTION
  8. 8. Controlled fission reaction
  9. 9. Example for nuclear fission ATOM BOMB
  10. 10. On Aug 6 1945 a Uranium bomb was dropped on the city of Hiroshima killing 1.5 lakhs of people. Here is the picture of that bomb. Length: Approx. 3 meters (120 inches) Weight: Approx. 4 tons (9,000 lbs)  Diameter: Approx. 0.7 meters (28 inches) Element: Uranium 235
  11. 11. Another bomb was dropped at Nagasaki on Aug 9 killing thousands of people. Here is the picture of that bomb. Length: Approx. 3.2 meters (128 inches) Weight: Approx. 4.5 tons (10,000 pounds) Diameter: Approx. 1.5 meters (60 inches) Element: Plutonium 239
  12. 12. A device that is used to produce nuclear energy by controlled fission reaction is called nuclear reactors
  13. 13. There two types of nuclear reactors • Pressurized Water Reactor • Boiling Water Reactor
  14. 14. Pressurized Water Reactor
  15. 15. Boiling Water Reactor
  16. 16. In India Pressurized Water Reactors are used. Mentioned below are some reactors present in India
  17. 17. First nuclear reactor in Asia – Apsara
  18. 18. Tarapur India’s First nuclear Power Station
  19. 19. Rawatbhata India’s first commercial nuclear reactor
  20. 20. Kalpakkam Mini Reactor
  21. 21. Narora Atomic Power Station
  22. 22. Advanced Heavy Water Reactor
  23. 23. Parts Common to all reactors • REACTOR CORE – Part of the reactor where fuel is kept • FUELS – Commonly used fuels are Uranium (233,235), Plutonium(239) • SOURCE OF NEUTRONS – Mixture of polonium and beryllium powder
  24. 24. • MODERATORS – Materials used to slow down neutrons e.g. – Heavy Water (D2O), Graphite • CONTROL RODS – Used to control the no: of neutrons in the reactors e.g. – Boron, Cadmium
  25. 25. • SHIELD TO PROTECT RADIATION – protect living organism from harmful rays like gamma, some shields made of thick lead and concrete are used around the core and the reactor
  26. 26. • COOLANTS – To reduce the heat generated as part of reaction, some fluids like high pressure water liquids, metals and gases take heat out of the core
  27. 27. NUCLEAR FUSION The process of merging two or more light nuclei to form a heavier nucleus is called NUCLEAR FUSION
  28. 28. Deuterium is a hydrogen isotope with mass number 2.At very high temperature Deuterium nuclei with high kinetic energy fuse to form Helium nucleus
  29. 29. Example for nuclear fusion Energy liberated from sun, stars etc Figures are given below
  30. 30. Galaxy
  31. 31. Energy Liberated from Sun
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×