A Designers View of Nuclear Energy - Department of Materials ...

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Simplified Reactor Physics - FissionThermal reactor fission:Uranium 235 is the onlynaturally occurring fissileatom - typical fission reactionn + U 235 Xe 140 + Sr 94 + ~2-3 n’s + 193MevthermalfastHigh thermal nabsorptionlow fast nabsorptionFission Product distributionUranium 235 fission cross sectionIntermediate energyresonances linked toquantum states - loss <strong>of</strong> n4
Neutron Fission Cycle100 fissionsn’s per fission &fast fission - ε * η259 neutrons59 n’s lost 100 absorbed no fission 100 n leading to fission45 absorbedby structure14 absorbedby fissionproducts100 absorbed by fuelwithout fission27 by Pu, 15 by U 23558 by U 23832 fissions in Pu,63 fissions in U 2355 fissions in U 238ActivationProductsProduce Pu, higher actinides& their decay products100 fissionneutronsModeratorabsorption - fFuel resonancecapture - p5
Page 1 and 2: A Designers View ofNuclear EnergyTo
Page 3: The First Nuclear Reactor• Enrico
Page 7 and 8: Pressurised Water ReactorPWR overvi
Page 9 and 10: Some Design & Safety Considerations
Page 11 and 12: Nuclear Safety approach affects the
Page 13 and 14: BWR Reactor Cooling & Containment
Page 15 and 16: Steam Venting & Hydrogen Explosion
Page 17 and 18: Fukushima 2• Similar sequence of
Page 19 and 20: PWR Passive Safety• The cost and
Page 21 and 22: Fukushima et al - The Broader Issue
Page 23 and 24: MPhil in Nuclear Energy - Programme
Page 25 and 26: Engagement with IndustryWho?EDF Ene
Page 27: Endarmr2@cam.ac.uk2727

A Designers View of Nuclear Energy - Department of Materials ...

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