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 1 of 4.
Amanul said:
1 decade ago
Graphite and concrete are very widely used as moderator.
Nikhil said:
1 decade ago
Heavy water, light water are also used.
Dhaval said:
1 decade ago
I think heavy water is more widely used as moderator than concrete.
DEBASHISH SAHA said:
1 decade ago
A substance, such as graphite, water, or heavy water, placed in a nuclear reactor to slow neutrons down to speeds at which they are more likely to be captured by fissionable components of a fuel (such as uranium-235) and less likely to be absorbed by non fissionable components of a fuel (such as uranium-238). Also called neutron moderator. & concrete its not a moderator.
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Khushboo said:
1 decade ago
Heavy water 5%, 20% graphite and 75% normal light water.
Raviteja said:
1 decade ago
If graphite or concrete is used, it is a big deal to change the material simultaneously, but water can change, so, mostly water is used as moderator.
Adi said:
1 decade ago
In a nuclear reactor, a moderator is a material in the core, which slows down the neutrons released from fission so that they cause more fission. It is usually water, but may also be graphite.
Arvind said:
1 decade ago
It will sure about me d2o (heavy water) used as moderator in nuclear power plant.
Sugumaran said:
1 decade ago
Water is mostly as used as coolant in nuclear reactor.
Honey said:
1 decade ago
d2o is maximum used in form of moderator because it boiling temperature 101 degree Celsius.
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