07 май category Science Review: 0


A nuclear reactor is a device where a fission chain reaction pro­duces heat energy for generating electricity. The heat energy is used to produce steam, the mechanical energy of the steam drives the turbines, which generate electrical energy.

There is a large variety of nuclear reactors. They differ in fuel, power level and purpose. Most of them consist of the following components:

a)                the core where fuel rods support a fission chain reaction;

b)               the moderator which is used to slow down fast neutrons;

c)                the coolant which is used to remove heat from the core;

d)  control rods which are used to control the rate of the chain reaction;

As for the fuel, nuclear reactors use such fissile materials as U-233, U-235, and Pu-239.


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