explain the principal and working of a nuclear reactor with the help of labelled diagram
Answers
Explanation:
Nuclear reactor:
Principle: It works on the principle of achieving controlled chain reaction of Uranium
238
U enriched with
235
U and as a result generating huge amount of energy. The controlled chain is made possible by :
slowing down the fission neutrons to thermal neutrons by using a moderator.
inserting rods that can absorb neutrons(control rods) and use them to maintain the reaction rate.
Working:
Clearly explained in the image.
In general the fuel used is
235
U which is filled in aluminium cylindrical rod.
The moderator used are D
2
O heavy water, salt water and graphite block.
The materials like Beryllium and Cadmium rods are used as control rods which controls the chain reaction by absorbing the neutron emitted in the nuclear reaction.
Cold water is circulated through the water pipes surrounding ht nuclear reactor to absorb heat.
Answer:
Nuclear reactor:
Principle: It works on the principle of achieving controlled chain reaction of Uranium
238
U enriched with
235
U and as a result generating huge amount of energy. The controlled chain is made possible by :
slowing down the fission neutrons to thermal neutrons by using a moderator.
inserting rods that can absorb neutrons(control rods) and use them to maintain the reaction rate.