I need help with 1-3
(2%) Sodium is selected as the coolant in a Liquid Metal Cooled Reactor where high neutron velocity is preferred. Can you explain why?
(5%) Which one of the metals tabulated below has the highest specific stiffness? Explain the reasoning behind your answer and show calculations to support your conclusion.
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1.(2%) Sodium is selected as the coolant in a Liquid Metal Cooled Reactor where high neutron velocity is preferred. Can you explain why?
2.(5%) Which one of the metals tabulated below has the highest specific stiffness?Explain the reasoning behind your answer and show calculations to support your conclusion. Element Density Crystal structure Elastic Modulus Coefficient of thermal (g/cm3) at 20C (GPa) expansion (m/m.C') Be 1.85 HCP 296 11.3(10-6) Ca 1.55 FCC 20.7 22.8(10-6) Ir 22.65 FCC 528 6.4(10-) W 19.25 BCC 407 4.5(10-)
3. (3%) The crystal lattice structure of Beryllium is (). The bonding in the basal plane (0001) is () and the bonding in [0001] direction is ( ).