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NucE 430 Exam 1

TermDefinition
Qth units [MWth]
Qth in words Core thermal power
Qth in terms of q Np*sum(q)/gamma
Q"' in words Core Power Density
Q"' units [MW/m^3]
Q"' equations =Qth/Vcore
IHM Initial Heavy Metal (fissile)
Q^M units [MW/TU]
Q^M in words Core Specific Power
Q^M equations =Qth/M(IHM)
in words Core-wide average fuel heat rate
as a func of Qth =gamma*Qth/Np
equation [kw]
shear strain rate ⌂v
rotation rate (vorticity) ⌂xv
linear deformation (or dilation) rate ⌂*v (dot product)
spatial rate of change or slope ⌂a
Theory that predicts fossil fuel production bell curve Hubbert Peak Theory
3 Criteria for a viable future energy source Large Scale Renewable Sustainable
3 examples of sustainable energy options solar, geothermal, nuclear
percent of world energy that is nuclear 12.3%
percent of US energy that is nuclear 19.3%
percent of spent fuel that can be recycled >95%
major feature of a Gen III and III+ reactor "passive safety"
RPV pressure - PWR 15.5 MPa
RPV pressure - BWR 7.6 MPa
LWR light water reactor
HWR heavy water reactor
LMFBR Liquid Metal Fast Breeder Reactor
GCR Gas Cooled Reactor
SMR Small Module Reactor
ESBWR Economic Symplified Boiling Water Reactor
EPR European Pressurized Reactor
MSL Main Steam Line
FWL Feedwater Loop
ECCS Emergency Core Cooling System
Reactor electrical power Qe
net plant efficiency n
q"' units [W/cm^3]
q"' definition heat produced per unit volume
q" units [kw/m^2]
q" definition heat generated per unit
q' units [kW/m]
q' definition linear heat (generation) rate
Q' definition linear (core) power density
Dco outer cladding diameter
Fuel Loading total mass of fissile material
fuel loading units kg
fuel enrichment r [w/o]
r= (Mass of Fissile Material) ------------------------- (fissile + nonfissile)
Bud definition energy produced in fuel during core residence --------------------------------------------- total mass of fuel
Bud units [MWd/TU]
Bud = (2n/(n+1))Bu1
Buc definition operating cycle burnup
B1 definition single batch loading core burn up (n=1)
Wp definition shaft work
Wp = =⌂PQ/n
gamma fraction of energy deposited to fuel
1-gamma = Qother/Qth
Q"'(square) = 1/P^2 * q'
L definition mean linear power rating
L = qn/L
n = qn/Vfuel
n definition volumetric mean power rating
Created by: kab301