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:
38 comments Page 2 of 4.
Ajay said:
8 years ago
Yes, heavy water is used as a moderator.
Amit said:
8 years ago
Concrete is wrong. It is used to shield the reactor.
Sarath K R said:
9 years ago
I think concrete is a wrong answer.
Anomm said:
9 years ago
Heavy water is the right option.
Suraj j said:
9 years ago
D2o is the right answer which mostly used.
Vicky said:
9 years ago
Concrete is used for shielding (neutron) and d2o is most commonly used as a moderator.
Manjunatha K said:
9 years ago
I too agree with you @Bhaskar!
Jay said:
9 years 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.
Siva said:
9 years ago
I think heavy water is used as moderator in powerplants.
Bhaskar said:
9 years 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.
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