forked from crp/openmc-designs
262 lines
11 KiB
Python
262 lines
11 KiB
Python
import math
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class Constants(object):
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############## Material paramters ##############
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h2oDens = 0.73986
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nominalBoronPPM = 975
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## pincell parameters
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pelletOR = 0.39218 #
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cladIR = 0.40005 #
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cladOR = 0.45720 #
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rodGridSide_tb = 1.22030 #
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rodGridSide_i = 1.22098 #
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guideTubeIR = 0.56134 #
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guideTubeOR = 0.60198 #
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guideTubeDashIR = 0.50419 #
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guideTubeDashOR = 0.54610 #
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rcca_clad_OR = 0.48387 # ML033530020 page 15
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rcca_clad_IR = 0.38608 # ML033530020 page 15
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rcca_b4c_OR = 0.37338 # ML033530020 page 15
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rcca_aic_OR = 0.38227 # ML033530020 page 15
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rcca_spacer_OR = 0.37845 # ML033530020 page 15
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rcca_spring_OR = 0.06459 # Assumed same as fuel
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burnabs1 = 0.21400 #
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burnabs2 = 0.23051 #
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burnabs3 = 0.24130 #
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burnabs4 = 0.42672 #
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burnabs5 = 0.43688 #
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burnabs6 = 0.48387 #
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instrTubeIR = 0.43688 # no source
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instrTubeOR = 0.48387 # no source
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plenumSpringOR = 0.06459 # frapcon source - see beavrs_spring.ods
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## lattice parameters
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pinPitch = 1.25984 #
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latticePitch = 21.50364 #
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gridstrapSide = 21.49595 #
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## <!--- axials copied straight from rod_axials.ods
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# Core Structures
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struct_LowestExtent = 0.00000 #
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struct_SupportPlate_bot = 20.0000 # arbitrary amount of water below core
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struct_SupportPlate_top = 25.0000 # guessed
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struct_LowerNozzle_bot = 25.0000 # same as struct_SupportPlate_top
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struct_LowerNozzle_top = 35.0000 # approx from ** NDR of 4.088in for lower nozzle height
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struct_LowestExtent_2d = 220.000 # arbitrary lower slice for 2D problem
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struct_HighestExtent_2d = 230.000 # arbitrary upper slice for 2D problem
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struct_UpperNozzle_bot = 423.049 # fig 4.2-3 from Watts Bar Unit 2 safety analysis report
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struct_UpperNozzle_top = 431.876 # fig 4.2-3 from Watts Bar Unit 2 safety analysis report
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struct_HighestExtent = 460.000 # arbitrary amount of water above core
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# Fuel Rod
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fuel_Rod_bot = 35.0000 # same as struct_LowerNozzle_top
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fuel_LowerFitting_bot = 35.0000 # ML033530020 Fig 2-7
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fuel_LowerFitting_top = 36.7480 # ML033530020 Fig 2-7
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fuel_ActiveFuel_bot = 36.7480 # ML033530020 Fig 2-7
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fuel_ActiveFuel_top = 402.508 # ML033530020 Fig 2-7
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fuel_Plenum_bot = 402.508 # ML033530020 Fig 2-7
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fuel_Plenum_top = 417.164 # ML033530020 Fig 2-7
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fuel_UpperFitting_bot = 417.164 # ML033530020 Fig 2-7
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fuel_UpperFitting_top = 419.704 # ML033530020 Fig 2-7
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fuel_Rod_top = 419.704 # ML033530020 Fig 2-7
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# RCCAs (0 steps withdraw, i.e., fully inserted)
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rcca_Rod_bot = 39.9580 # ML033530020 Fig 2-8
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rcca_LowerFitting_bot = 39.9580 # ML033530020 Fig 2-8
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rcca_LowerFitting_top = 41.8280 # ML033530020 Fig 2-8
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rcca_AIC_bot = 41.8280 # ML033530020 Fig 2-8
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rcca_AIC_top = 143.428 # ML033530020 Fig 2-8
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rcca_B4C_bot = 143.428 # ML033530020 Fig 2-8
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rcca_B4C_top = 402.508 # ML033530020 Fig 2-8
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rcca_Spacer_bot = 402.508 # ML033530020 Fig 2-8
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rcca_Spacer_top = 403.778 # ML033530020 Fig 2-8
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rcca_Plenum_bot = 403.778 # ML033530020 Fig 2-8
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rcca_Plenum_top = 415.558 # ML033530020 Fig 2-8
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rcca_Rod_top = 460.000 # same as struct_HighestExtent
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rcca_StepWidth = 1.58193 # Active height divided into 228 steps
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# BPRAs
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bpra_Rod_bot = 38.6600 # ML033530020 Fig 2-9
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bpra_LowerFitting_bot = 38.6600 # ML033530020 Fig 2-9
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bpra_LowerFitting_top = 40.5580 # ML033530020 Fig 2-9
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bpra_Active_bot = 40.5580 # ML033530020 Fig 2-9
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bpra_Active_top = 401.238 # ML033530020 Fig 2-9
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bpra_Plenum_bot = 401.238 # ML033530020 Fig 2-9
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bpra_Plenum_top = 421.532 # ML033530020 Fig 2-9
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bpra_Rod_top = 431.876 # same as struct_UpperNozzle_top
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# Guide Tube
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gt_Rod_bot = 35.0000 # same as fuel_Rod_bot
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gt_Dashpot_bot = 35.0000 #
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gt_Dashpot_top = 39.9580 # same as rcca_Rod_bot for full insertion
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gt_Upper_bot = 39.9580 #
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gt_Upper_top = 423.049 # same as struct_UpperNozzle_bot
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gt_Rod_top = 423.049 #
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# Intrument Tube
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instr_Rod_bot = 35.0000 # same as fuel_Rod_bot
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instr_Rod_top = 423.049 # same as struct_UpperNozzle_bot
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# Grid Spacers (centers provided by utiliy) (heights 1.65 top/bottom, 2.25 intermediate)
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grid1_bot = 37.1621 #
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grid1_top = 40.5200 #
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grid2_bot = 98.0250 #
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grid2_top = 103.740 #
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grid3_bot = 150.222 #
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grid3_top = 155.937 #
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grid4_bot = 202.419 #
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grid4_top = 208.134 #
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grid5_bot = 254.616 #
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grid5_top = 260.331 #
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grid6_bot = 306.813 #
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grid6_top = 312.528 #
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grid7_bot = 359.010 #
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grid7_top = 364.725 #
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grid8_bot = 411.806 #
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grid8_top = 415.164 #
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# data for nozzle and support plate region
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n_nozzle_pins = 264 # number of pins
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# volume fractions from ML033530020 (table 2-3)
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nozzle_water_vol_frac = 0.8280 # water volume fraction
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nozzle_ss_vol_frac = 0.1720 # stainless steel volume fraction
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## -- axials copied straight from rod_axials.ods -->
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## radial paramters
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coreBarrelIR = 187.9600 # Fig 2.1 from NDR 2-8
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coreBarrelOR = 193.6750 # Fig 2.1 from NDR 2-8
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baffleWidth = 2.2225 # Fig 2.1 from NDR 2-8
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baffleWaterGap = 0.1627 # ML033530020
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linerIR = 219.150 # ML033530020
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rpvIR = 219.710 # ML033530020
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rpvOR = 241.300 # ML033530020
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neutronShieldIR = 194.840 # ML033530020
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neutronShieldOR = 201.630 # ML033530020
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neutronShield_NWbot_SEtop = {'a': 1, 'b': math.tan(math.pi/3 + math.pi/180), 'c': 0, 'd': 0}
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neutronShield_NWtop_SEbot = {'a': 1, 'b': math.tan(math.pi/6 - math.pi/180), 'c': 0, 'd': 0}
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neutronShield_NEbot_SWtop = {'a': 1, 'b': math.tan(-math.pi/3 - math.pi/180), 'c': 0, 'd': 0}
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neutronShield_NEtop_SWbot = {'a': 1, 'b': math.tan(-math.pi/6 + math.pi/180), 'c': 0, 'd': 0}
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def __init__(self, S:int=15, SS:int=0) -> None:
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self.first_thru = True
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############## Geometry paramters ##############
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self.rcca_bank_steps_withdrawn = {}
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self.rcca_banks = self.rcca_bank_steps_withdrawn.keys()
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## Keff=1 at approximately S 298
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self.set_S(S)
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self.set_SS(SS)
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self.update_dict()
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def set_S(self, _S, print_data=True):
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if isinstance(_S,(float,int)):
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if _S < 0:
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print("Cannot have a negative S position. S set to 0")
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self._S = 0
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elif _S > 573:
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print("Cannot have a S position greater than 573. S set to 573")
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self._S = 573
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else:
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self._S = int(_S)
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elif _S == None:
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self._S = 15
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print(f"Value supplied was 'None'. S Value set to default value of {self._S}")
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else:
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raise ValueError
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if print_data and not self.first_thru:
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print(" RCCA Positions")
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print(f" A: {self._A:3d} B: {self._B:3d} C: {self._C:3d} D: {self._D:3d}")
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print(f" SA: {self._SA:3d} SB: {self._SB:3d} SC: {self._SC:3d} SD: {self._SD:3d} SE: {self._SE:3d}")
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if not self.first_thru:
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self.update_dict()
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else:
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self.first_thru = False
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@property
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def _A(self):
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return 228 if self._B > 113 else max(0, 228-self._S+113*3+6)
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@property
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def _B(self):
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return 228 if self._C > 113 else max(0, 228-self._S+113*2+4)
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@property
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def _C(self):
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return 228 if self._D > 113 else max(0, 228-self._S+113*1+2)
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@property
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def _D(self):
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return max(0,228-self._S)
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def set_SS(self, _SS, print_data=True):
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if isinstance(_SS,(float,int)):
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if _SS < 0:
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print("Cannot have a negative SS position. SS set to 0")
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self._SS = 0
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elif _SS > 228:
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print("Cannot have a SS position greater than 228. SS set to 228")
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self._SS = 228
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else:
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self._SS = int(_SS)
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elif _SS == None:
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self._SS = 0
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print(f"Value supplied was 'None'. SS Value set to default value of {self._SS}")
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else:
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raise ValueError
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if print_data and not self.first_thru:
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print(" RCCA Positions")
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print(f" A: {self._A:3d} B: {self._B:3d} C: {self._C:3d} D: {self._D:3d}")
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print(f" SA: {self._SA:3d} SB: {self._SB:3d} SC: {self._SC:3d} SD: {self._SD:3d} SE: {self._SE:3d}")
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if not self.first_thru:
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self.update_dict()
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else:
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self.first_thru = False
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@property
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def _SA(self):
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return 228-self._SS
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@property
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def _SB(self):
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return 228-self._SS
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@property
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def _SC(self):
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return 228-self._SS
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@property
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def _SD(self):
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return 228-self._SS
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@property
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def _SE(self):
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return 228-self._SS
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def update_dict(self):
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## Steps withdrawn for each RCCA bank
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self.rcca_bank_steps_withdrawn = {
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'A': self._A,
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'B': self._B,
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'C': self._C,
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'D': self._D,
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'SA': self._SA,
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'SB': self._SB,
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'SC': self._SC,
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'SD': self._SD,
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'SE': self._SE,
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}
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self.rcca_banks = self.rcca_bank_steps_withdrawn.keys()
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