Mechanical Engineering - IC Engines and Nuclear Power Plants - Discussion
Discussion Forum : IC Engines and Nuclear Power Plants - Section 1 (Q.No. 9)
9.
A moderator generally used in nuclear power plants is
Discussion:
39 comments Page 4 of 4.
Jay said:
1 decade ago
The answer should be heavy water, graphite or light water. Concrete is not a moderator.
Heavy water has highest moderating ration while light water has least and graphite has its moderating ration between those of heavy and light water.
Heavy water has highest moderating ration while light water has least and graphite has its moderating ration between those of heavy and light water.
Sachin said:
1 decade ago
What concrete not used?
The whole reactor is encased with thick concrete wall.
The whole reactor is encased with thick concrete wall.
Madhavan said:
1 decade ago
From my point of view heavy water is used as moderator.
Vikash verma said:
1 decade ago
Heavy water are use for moderator.
Joydeep c said:
1 decade ago
Concrete can never be used as a moderator. Rather it is used as a protective shields to protect from neutrons and gamma rays.
Senthil said:
1 decade ago
D20 heavy water is used as moderate in N.P.P.
Sai said:
1 decade ago
I think mostly heavy water is used as moderator.
Bhaskar said:
1 decade ago
In nuclear power plants, heavy water (D20) is mostly used as a moderator to slow down fast moving neutrons released in fission process and in sometimes graphite may be used but concrete cannot be used.
Concrete is used to make a protective shield of about 5 to 6m thick to avoid the neutrons and ultraviolet waves escaping from the reactor.
Concrete is used to make a protective shield of about 5 to 6m thick to avoid the neutrons and ultraviolet waves escaping from the reactor.
Amanul said:
1 decade ago
Graphite and concrete are very widely used as moderator.
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