Describe how electricity is generated in a nuclesr power plant ???.......
Answers
Describe how electricity is generated in a nuclear power plant ?
Nuclear power plant consists the following parts:
1) Nuclear Reactor 'R' :
It is a device in which energy is produced by a controlled nuclear fission of U - 235. The reactor R is enclosed in a concrete chamber 'M' having thick walls to protect the outside world from nuclear radiations.
The nuclear reaction consists of steel vessel 'V' having graphite blocks witch act as a moderator. The graphite core has number of enriched U - 235 rods which act as a fuel. These are marked as 'A'. In between the uranium rods are inserted cadmium or boron rods and which can be lowered or raised from outside. These rods will keep the fission under control.
2) Heat Exchanger 'E' :
The reactor 'R' is connected to a heat exchanger 'H' by pipes. The heat exchanger is a sort of bioler which contains water. The heat produced in the reactor is carried to water through coiled pipes.
3)Steam Turbine 'T' :
The heat exchanger is connected to a steam turbine 'T' and its shaft is connected to an electric generator 'G'. The electricity produced by the generator is sent for transmission.
Working :
After the uranium enriched rods are placed in position, the reactor is sealed. The cadmium or boron rods in the beginning are put inside so that they may absorb all neutrons emiited by U - 235 and prevent fission all at once. The controlling rods of cadium or boron are withdrawn till they emit desirable number of neutrons. At this stage a controlled reaction takes place. The heat produced is withdrawn by circulating sodium. When sodium passes through the coil in the exchange it transfers heat to water. Now the water changes into turbine chamber 'T'. The turbine rotates the coil of the generator 'G' when electricity is generated.
The energy produced due to nuclear fission reactions of atoms of heavy metals is called nuclear energy.
Answer:
Nuclear power plant consists the following parts:
1) Nuclear Reactor 'R' :
It is a device in which energy is produced by a controlled nuclear fission of U - 235. The reactor R is enclosed in a concrete chamber 'M' having thick walls to protect the outside world from nuclear radiations.
The nuclear reaction consists of steel vessel 'V' having graphite blocks witch act as a moderator. The graphite core has number of enriched U - 235 rods which act as a fuel. These are marked as 'A'. In between the uranium rods are inserted cadmium or boron rods and which can be lowered or raised from outside. These rods will keep the fission under control.
2) Heat Exchanger 'E' :
The reactor 'R' is connected to a heat exchanger 'H' by pipes. The heat exchanger is a sort of bioler which contains water. The heat produced in the reactor is carried to water through coiled pipes.
3)Steam Turbine 'T' :
The heat exchanger is connected to a steam turbine 'T' and its shaft is connected to an electric generator 'G'. The electricity produced by the generator is sent for transmission.
Working :
After the uranium enriched rods are placed in position, the reactor is sealed. The cadmium or boron rods in the beginning are put inside so that they may absorb all neutrons emiited by U - 235 and prevent fission all at once. The controlling rods of cadium or boron are withdrawn till they emit desirable number of neutrons. At this stage a controlled reaction takes place. The heat produced is withdrawn by circulating sodium. When sodium passes through the coil in the exchange it transfers heat to water. Now the water changes into turbine chamber 'T'. The turbine rotates the coil of the generator 'G' when electricity is generated.
\bf \red{ \underline{Additional\:Information:}}
AdditionalInformation:
The energy produced due to nuclear fission reactions of atoms of heavy metals is called nuclear energy.