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(a) Discuss the advantages of nuclear power over fossil fuel. (6 marks) (b) A reactor has a uranium oxide with volume of 60,000cm3, which is
(a) Discuss the advantages of nuclear power over fossil fuel. (6 marks) (b) A reactor has a uranium oxide with volume of 60,000cm3, which is subject to a thermal neutron beam with flux density of 1013 neutrons /cm2sec. The macroscopic fission cross section of the slow neutron is 0.1cm1. (i) What is the fission rate? (ii) How much energy in Joules can be generated for one day? Suppose 200MeV can be released by one fission (1eV=1.602191019J). (6 marks) (c) Compare the difference between a boiling water reactor and a pressurized water reactor by drawing their schematic diagrams. (8 marks) (a) Discuss the advantages of nuclear power over fossil fuel. (6 marks) (b) A reactor has a uranium oxide with volume of 60,000cm3, which is subject to a thermal neutron beam with flux density of 1013 neutrons /cm2sec. The macroscopic fission cross section of the slow neutron is 0.1cm1. (i) What is the fission rate? (ii) How much energy in Joules can be generated for one day? Suppose 200MeV can be released by one fission (1eV=1.602191019J). (6 marks) (c) Compare the difference between a boiling water reactor and a pressurized water reactor by drawing their schematic diagrams. (8 marks)
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