Do we need to know about PWR in Nuclear Fission (OCR A2 SPEC)?

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BrainJuice
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Can anyone please tell me if we need to know about this. It is mentioned in the kerboodle book but it could just be background. Thank you very much for reading, and for responding.
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uberteknik
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(Original post by BrainJuice)
Can anyone please tell me if we need to know about this. It is mentioned in the kerboodle book but it could just be background. Thank you very much for reading, and for responding.
PWR is simply the method for exchanging the heat collected from the fission reactor vessel to an isolated steam generator to drive the turbines producing electricity.

Because the primary coolant is used to moderate the fission reaction, the water used becomes highly radioactive. It is therefore necessary to both seal and Isolate the primary coolant from escape into the environment by use of a heat exchanger and a secondary water circuit generating steam to drive the turbines.

You may be asked a question relating to benefits and disadvantages when comparing the various methods of fission reactors - but this is supposition on my part. It doesn't harm your knowledge to know a few facts as general background information though.
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