(1351) IRREVERSIBLE LOSSES (LHS)
RELAP5 does not include heat energy from terms for the dissipation of fluids due to wall friction (Ref. [ 1 ]). This will be a small amount of energy compared to this fission power, however, during full-flow conditions after scram, the dissipative heat energy can be important relative to the core decay heat energy. The energy that is dissipated around the circulation loop is evaluated by determining the energy added to the fluid in the MCPs.
This energy is added to the fluid using the direct heating multiplier to the boundary fluid from heat structures. To accomplish this, small heat structures are added to the model. The heat structures are attached to the MCP fluid volumes, and permit energy to be directly added to the fluid. Since the sole purpose of these heat structures is to add energy to the fluid, their physical characteristics are unimportant. They are specified arbitrarily small to eliminate any adverse effects. The internal heat generation source is specified to be approximately zero (the code requires a non-zero entry). All the energy specified in the pump shaft power control variables specified to be added directly to the adjacent fluid volume without interacting with the heat structure.
CARD 1CCCG000, GENERAL HEAT STRUCTURE DATA
Card 11351000
W1(I) NUMBER OF AXIAL HEAT STRUCTURES = 1
This heat structure input applies to a lone heat structure.
W2(I) NUMBER OF RADIAL MESH POINTS = 2
Modeling choice.
W3(I) GEOMETRY TYPE = 1
Rectangular. Modeling choice.
W4(I) STEADY STATE INITIALIZATION FLAG = 0
The initial conditions are entered on input cards.
W5(I) LEFT BOUNDARY COORDINATE = 0.0
Consistent with rectangular geometry.
CARD 1CCCG100, HEAT STRUCTURE MESH FLAGS
Card 11351100
W1(I) MESH LOCATION FLAG = 0
Geometry data including mesh interval data, composition data, and source distribution data, are entered with this heat structure input.
W2(I) MESH FORMAT FLAG = 1
The pairs on the following card contain the number of mesh intervals in this region and the right boundary coordinate.
CARDS 1CCCG101 - 1CCCG199, H.S. MESH INTERVAL DATA (RADIAL)
Card 11351101
W1(I) NUMBER OF INTERVALS = 1
Consistent with 2 mesh points.
W2(R) RIGHT COORDINATE = 0.01 m
Arbitrarily thin to minimize heat content.
CARDS 1CCCG201 - 1CCCG299, H.S. COMPOSITION DATA (RADIAL)
Card 11351201
W1(I) COMPOSITION NUMBER = 1
Composition is arbitrary as all energy is passed directly to the fluid.
W2(I) INTERVAL NUMBER = 1
CARDS 1CCCG301 - 1CCCG399, H.S. SOURCE DISTRIBUTION DATA (RADIAL)
The following assumes no energy deposition in gap regions or cladding.
Card 11351301
W1(R) SOURCE VALUE = 1.0
W2(I) MESH INTERVAL NUMBER = 1
CARD 1CCCG400, INITIAL TEMPERATURE FLAG
Card 11351400
W1(I) INITIAL TEMPERATURE FLAG = -1
Initial temperatures are entered with the input data for this heat structure geometry.
Card 11351401
W1(R) - W2(R) TEMPERATURE = 536.66 K - 536.66 K
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 11351501
W1(I) BOUNDARY VOLUME NUMBER = 135010000
LHS MCPs. Modeling choice.
W2(I) INCREMENT = 0
Only a single heat structure is being represented.
W3(I) BOUNDARY CONDITION TYPE = 1
A convective boundary condition where the heat transfer coefficient obtained from Heat Transfer Package 1 will be used.
W4(I) SURFACE AREA CODE = 0
Identifies the next word as left surface area.
W5(R) SURFACE AREA or FACTOR = 100.0 m2
Arbitrarily substantial.
W6(I) HEAT STRUCTURE NUMBER = 1
CARDS 1CCCG601 - 1CCCG699, RIGHT BOUNDARY CONDITION CARDS
Cards 11351601
W1(I) BOUNDARY VOLUME NUMBER = 0
No volume or general table will be associated with the right surface of this heat structure.
W2(I) INCREMENT = 0
Only a single heat structure being represented.
W3(I) BOUNDARY CONDITION TYPE = 0
An insulated boundary condition will be used.
W4(I) SURFACE AREA CODE = 0
Identifies the next word as right surface area.
W5(R) SURFACE AREA or FACTOR = 100.0 m2
Arbitrarily substantial.
W6(I) HEAT STRUCTURE NUMBER = 1
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Card 11351701
W1(I) SOURCE TYPE = 10020
Heat generation given by the value of Control Variable 20 (= 10020 - 10000).
W2(R) INTERNAL SOURCE MULTIPLIER = 1.0e-10
Arbitrarily small.
W3(R) DIRECT HEATING MULTIPLIER FOR LEFT BOUNDARY VOLUME = 1.0
W4(R) DIRECT HEATING MULTIPLIER FOR RIGHT BOUNDARY VOLUME = 0.0
W5(I) HEAT STRUCTURE NUMBER = 1
CARDS 1CCCG801 - 1CCCG899, ADDITIONAL LEFT BOUNDARY CARDS
Card 11351801
W1(R) HEATED EQUIVALENT DIAMETER = 0.0
Hydraulic diameter of associated hydro cell used.
W2(R) HEATED LENGTH FORWARD = 0.01
Arbitrarily small.
W3(R) HEATED LENGTH REVERSE = 0.01
Arbitrarily small.
W4(R) GRID SPACER LENGTH FORWARD = 0.0
Disregard any influence of the grid spacers on heat transfer.
W5(R) GRID SPACE LENGTH REVERSE = 0.0
W6(R) GRID LOSS COEFFICIENT FORWARD = 0.0
W7(R) GRID LOSS COEFFICIENT REVERSE = 0.0
W8(R) LOCAL BOILING FACTOR = 1.0
Assume a flat axial power profile ==> local heat flux / average heat flux = 1.
W9(I) HEAT STRUCTURE NUMBER = 1
(5351) IRREVERSIBLE LOSSES (RHS)
This heat structure is identical to Heat Structure 1351 with the exception of the following inputs.
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 15351501
W1(I) BOUNDARY VOLUME NUMBER = 535010000
RHS MCP. Modeling choice.
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Card 15351701
W1(I) SOURCE TYPE = 10021
Heat generation given by the value of Control Variable 21 (= 10021 - 10000).
(6351) IRREVERSIBLE LOSSES (RHS)
This heat structure is identical to Heat Structure 1351 with the exception of the following inputs.
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 16351501
W1(I) BOUNDARY VOLUME NUMBER = 635010000
RHS MCP. Modeling choice.
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Card 16351701
W1(I) SOURCE TYPE = 10022
Heat generation given by the value of Control Variable 21 (= 10021 - 10000).
(8351) IRREVERSIBLE LOSSES (RHS)
This heat structure is identical to Heat Structure 1351 with the exception of the following inputs.
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 18351501
W1(I) BOUNDARY VOLUME NUMBER = 835010000
RHS MCP. Modeling choice.
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Card 15351701
W1(I) SOURCE TYPE = 10023
Heat generation given by the value of Control Variable 21 (= 10021 - 10000).
(1601) FUEL RODS (LHS)
Half the core compliment of fuel rods are represented by the heat structures defined here. A portioning of the core into 14 axial levels is reflected. Three radial regions are defined. The inner radial region serves in representing the fuel pellets. The middle radial region does the same for the gaps between fuel and cladding. The outer radial region serves in representing fuel cladding.
CARD 1CCCG000, GENERAL HEAT STRUCTURE DATA
Card 11601000
W1(I) NUMBER OF AXIAL HEAT STRUCTURES = 14
Portion the core into 14 axial levels of equal height.
W2(I) NUMBER OF RADIAL MESH POINTS = 4
Consistent with the 3 radial regions identified above.
W3(I) GEOMETRY TYPE = 2
Cylindrical.
W4(I) STEADY STATE INITIALIZATION FLAG = 0
Steady-state conditions for the initial temperature distribution will be input.
W5(I) LEFT BOUNDARY COORDINATE = 0.001 m
Radius of the axial hole in a fuel pellet (Ref. [ 5 ], p. 45).
W6(I) REFLOOD CALCULATION FLAG = 0
No reflood calculations will be completed.
CARD 1CCCG001, GAP CONDUCTANCE MODEL INITIAL GAP PRESSURE DATA
Card 11601001
W1(R) INITIAL GAP INTERNAL PRESSURE = 1.661e6 Pa
W2(I) GAP CONDUCTANCE REFERENCE VOLUME = 160140000
This is the volume most closely associated with the nonfuel region of the fuel pin just above the active zone.
CARD 1CCCG011, GAP DEFORMATION DATA
Card 11601011
W1(R) FUEL SURFACE ROUGHNESS = 1.0e-6 m
This is the value suggested for RELAP5.
W2(R) CLADDING SURFACE ROUGHNESS = 2.0e-6 m
This is the value suggested for RELAP5.
W3(R) RADIAL DISPLACEMENT DUE TO FISSION GAS INDUCED FUEL SWELLING = 0.0
No radial displacement will be accounted for.
W4(R) RADIAL DISPLACEMENT DUE TO CLADDING CREEPDOWN = 0.0
No radial displacement will be accounted for.
W5(I) HEAT STRUCTURE NUMBER = 14
This is the number of heat structures defined here.
CARD 1CCCG100, HEAT STRUCTURE MESH FLAGS
Card 11601100
W1(I) MESH LOCATION FLAG = 0
Geometry data including mesh interval data, composition data, and source distribution data, are entered with this heat structure input.
W2(I) MESH FORMAT FLAG = 1
The pairs on the following card(s) contain the number of mesh intervals in this region and the right boundary coordinate.
CARDS 1CCCG101 - 1CCCG199, H.S. MESH INTERVAL DATA (RADIAL)
Card 11601101
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 5.75e-3 m
Outer radius of a fuel pellet (Ref. [ 5 ], p. 45).
Card 11601102
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 5.98e-3 m
Inner radius of fuel cladding (Ref. [ 5 ], p. 45).
Card 11601103
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 6.80e-3 m
Outer radius of fuel cladding (Ref. [ 5 ], p. 45).
CARDS 1CCCG201 - 1CCCG299, H.S. COMPOSITION DATA (RADIAL)
Card 11601201
W1(I) COMPOSITION NUMBER = 4
UO2 as per card 20100400.
W2(I) INTERVAL NUMBER = 1
Radial interval 1 - fuel pellet.
Card 11601202
W1(I) COMPOSITION NUMBER = -5
Helium as per card 20100500. The negative sign excludes this region from the volume averaged temperature calculation associated with reactivity logic.
W2(I) INTERVAL NUMBER = 2
Radial interval 2 - gap region.
Card 11601203
W1(I) COMPOSITION NUMBER = -1
Zirconium as per card 20100100. The negative sign excludes this region from the volume averaged temperature calculation associated with reactivity logic.
W2(I) INTERVAL NUMBER = 3
Radial interval 3 - fuel cladding.
CARDS 1CCCG301 - 1CCCG399, H.S. SOURCE DISTRIBUTION DATA (RADIAL)
The following assumes no energy deposition in gap regions or cladding.
Card 11601301
W1(R) SOURCE VALUE = 1
W2(I) MESH INTERVAL NUMBER = 1
Radial interval 1 - fuel pellet.
Card 11601302
W1(R) SOURCE VALUE = 0
W2(I) MESH INTERVAL NUMBER = 3
Radial intervals 2 and 3 - gap region and cladding.
CARD 1CCCG400, INITIAL TEMPERATURE DATA
Card 11601400
W1(I) INITIAL TEMPERATURE FLAG = -1
Initial temperatures are entered with the input data for this heat structure geometry.
11601401-11601414
W1(R) - W4(R) TEMPERATURE (K)
11601401 967.19 728.00 566.62 553.04
11601402 1114.7 771.59 581.19 562.72
11601403 1219.6 793.06 591.29 569.42
11601404 1266.2 802.18 595.67 572.41
11601405 1266.5 802.78 596.54 573.31
11601406 1248.5 799.03 595.73 573.02
11601407 1241.4 797.77 594.74 572.25
11601408 1243.4 797.46 593.98 571.38
11601409 1248.0 797.43 593.21 570.41
11601410 1248.4 796.86 592.17 569.31
11601411 1217.5 792.37 589.68 567.85
11601412 1139.9 779.09 585.11 565.93
11601413 1013.0 748.98 578.42 563.56
11601414 860.77 694.84 570.31 560.91
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 11601501
W1(I) BOUNDARY VOLUME NUMBER = 0 (adiabatic b.c.)
No potential for heat transfer from the inner surface of an annular fuel pellet.
W2(I) INCREMENT = 0
Use sequential expansion format to define an adiabatic b.c. for each of the 14 heat structures whose geometry is described here.
W3(I) BOUNDARY CONDITION TYPE = 0
Adiabatic b.c.
W4(I) SURFACE AREA CODE = 1
Identifies the next word as a length multiplier.
W5(R) SURFACE AREA or FACTOR = 7470.0 m2
W6(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.)
CARDS 1CCCG601 - 1CCCG699, RIGHT BOUNDARY CONDITION CARDS
Cards 11601601
W1(I) BOUNDARY VOLUME NUMBER = 160010000
Lowermost cell of the pipe representing the fluid volumes of half the pressure tubes in the core.
W2(I) INCREMENT = 10000
Use sequential expansion format to link the 14 heat structures whose geometry is defined here to the 14 cells of the above noted pipe.
W3(I) BOUNDARY CONDITION TYPE = 1
Convective heat transfer.
W4(I) SURFACE AREA CODE = 1
Identifies the next word as a length multiplier.
W5(R) SURFACE AREA or FACTOR = 7470.0 m2
W6(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.)
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Card 11601701-11601714
W1(I) SOURCE TYPE = 1
Power from the general table with this number is used as the source.
W2(R) INTERNAL SOURCE MULTIPLIER
Based on a normalized axial power profile distributed amongst the 14 axial nodes. Values are listed below for the respective heat structure number.
0.055436
0.070017
0.079401
0.086764
0.090156
0.090156
0.087846
0.084454
0.080845
0.076658
0.070017
0.059406
0.044031
0.024810
W3(R) DIRECT HEATING MULTIPLIER FOR LEFT BOUNDARY VOLUME = 0
W4(R) DIRECT HEATING MULTIPLIER FOR RIGHT BOUNDARY VOLUME = 0
W5(I) HEAT STRUCTURE NUMBER
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.) Note that these values are normalized to 1.0.
CARDS 1CCCG901 - 1CCCG999, ADDITIONAL RIGHT BOUNDARY CARDS
Card 11601901
W1(R) HEATED EQUIVALENT DIAMETER = 0
Value of 0 specifies use of hydraulic diameter.
W2(R) HEATED LENGTH FORWARD = 100
Large number, i.e., > 10, disregards boundary layer effects.
W3(R) HEATED LENGTH REVERSE = 100
Large number, i.e., > 10, disregards boundary layer effects.
W4(R) GRID SPACER LENGTH FORWARD = 0
Disregard any influence of the grid spacers on heat transfer.
W5(R) GRID SPACE LENGTH REVERSE = 0
W6(R) GRID LOSS COEFFICIENT FORWARD = 0
W7(R) GRID LOSS COEFFICIENT REVERSE = 0
W8(R) LOCAL BOILING FACTOR = 1
Assume a flat axial power profile ==> local heat flux / average heat flux = 1.
W9(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.)
(1602) PRESSURE TUBE WALLS AND MODERATOR (LHS)
Half the core pressure tube walls and graphite stacks are represented by these heat structures, reflecting 14 core axial levels. Three radial regions are defined. The inner radial region represents the pressure tubes. The middle radial region represents the annular spaces between the pressure tubes and the graphite stacks encompassing them. (These annular spaces are, for the most part, filled with rings composed of graphite.) The outer radial region represents the graphite stacks.
CARD 1CCCG000, GENERAL HEAT STRUCTURE DATA
Card 11602000
W1(I) NUMBER OF AXIAL HEAT STRUCTURES = 14
Portion the core into 14 axial levels of equal height.
W2(I) NUMBER OF RADIAL MESH POINTS = 4
Consistent with the 3 radial regions identified above.
W3(I) GEOMETRY TYPE = 2
Cylindrical.
W4(I) STEADY STATE INITIALIZATION FLAG = 0
Steady-state conditions for the initial temperature distribution will be input.
W5(I) LEFT BOUNDARY COORDINATE = 0.04 m
Inside radius of a pressure tube (Ref. [ 4 ], p. 14).
W6(I) REFLOOD CALCULATION FLAG = 0
No reflood calculations will be completed.
CARD 1CCCG100, HEAT STRUCTURE MESH FLAGS
Card 11602100
W1(I) MESH LOCATION FLAG = 0
Geometry data including mesh interval data, composition data, and source distribution data, are entered with this heat structure input.
W2(I) MESH FORMAT FLAG = 1
The pairs on the following card(s) contain the number of mesh intervals in this region and the right boundary coordinate.
CARDS 1CCCG101 - 1CCCG199, H.S. MESH INTERVAL DATA (RADIAL)
Card 11602101
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 0.044 m
Outer radius of a pressure tube (Ref. [ 4 ], p. 14).
Card 11602102
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 0.0570 m
Radius of the hole bored in the blocks of a graphite stack (Ref. [ 4 ], p. 14).
Card 11602103
W1(I) NUMBER OF INTERVALS = 1
W2(R) RIGHT COORDINATE = 0.141 m
Outer radius which gives a cross sectional area for the heat structure equivalent to that of a true graphite stack.
Equating areas gives:
l * l - p * d2 / 4 = (D2 - d2) * p / 4
where, l = the length of a side of a graphite stack cross section
d = dia. of the hole drilled in the blocks of a graphite stack
D = outer dia. of subject heat structure.
Solving for D,
l2 * 4 / p - d2 = D2 - d2
D = 2 * l / p1/2
For l = 0.250 m (Ref. [ 4 ], p. 14)
==> D = 0.282 m
CARDS 1CCCG201 - 1CCCG299, H.S. COMPOSITION DATA (RADIAL)
Card 11602201
W1(I) COMPOSITION NUMBER = -1
Zirconium as per card 20100100. The negative sign excludes this region from volume averaged temperature calculation associated with reactivity logic.
W2(I) INTERVAL NUMBER = 1
Radial interval 1 - pressure tube wall.
Card 11602202
W1(I) COMPOSITION NUMBER = 2
Associated material has the volumetric heat capacity of graphite but a thermal conductivity which is an effective value for the graphite ring region. This effective conductivity was determined as described with cards 201002NN.
W2(I) INTERVAL NUMBER = 2
Radial interval 2 - graphite ring region. Assumes the grahite rings between the pressure tubes and the graphite stacks essentially fill the region. Dimensions found in Ref. [ 4 ] support this assumption.
Card 11602203
W1(I) COMPOSITION NUMBER = 3
Graphite as per cards 201003NN.
W2(I) INTERVAL NUMBER = 3
Radial interval 3 - graphite stack.
CARDS 1CCCG301 - 1CCCG399, H.S. SOURCE DISTRIBUTION DATA (RADIAL)
Card 11602301
W1(R) SOURCE VALUE = 0
W2(I) MESH INTERVAL NUMBER = 2
Radial intervals 1 and 2 - pressure tube wall and graphite rings. Assume no energy deposition in these intervals.
Card 11602302
W1(R) SOURCE VALUE = 1
W2(I) MESH INTERVAL NUMBER = 3
Radial interval 3 - graphite stack. Assume uniform energy deposition within moderator.
CARD 1CCCG400, INITIAL TEMPERATURE DATA
Card 11602400
W1(I) INITIAL TEMPERATURE FLAG = -1
Initial temperatures are entered with the input data for this heat structure geometry.
11602401-11602414
W1(R) - W4(R) TEMPERATURE (K)
11602401 543.74 553.25 673.48 685.23
11602402 550.11 563.06 722.95 739.90
11602403 557.17 572.50 758.55 779.51
11602404 562.23 578.53 774.78 797.54
11602405 564.23 580.50 776.24 799.02
11602406 564.42 580.33 772.03 794.18
11602407 564.13 579.88 769.91 791.78
11602408 563.72 579.54 770.39 792.38
11602409 563.16 579.12 771.59 793.80
11602410 562.48 578.48 771.44 793.69
11602411 561.67 576.95 761.95 782.94
11602412 560.73 574.15 738.41 756.33
11602413 559.69 570.08 699.59 712.85
11602414 558.60 565.17 649.06 656.99
CARDS 1CCCG501 - 1CCCG599, LEFT BOUNDARY CONDITION CARDS
Card 11602501
W1(I) BOUNDARY VOLUME NUMBER = 160010000
Lowermost cell of the pipe representing the fluid volumes of half the pressure tubes in the core.
W2(I) INCREMENT = 10000
Use sequential expansion format to link the 14 heat structures whose geometry is defined here to the seven cells of the above noted pipe.
W3(I) BOUNDARY CONDITION TYPE = 1
Convective heat transfer.
W4(I) SURFACE AREA CODE = 1
Identifies the next word as a length multiplier.
W5(R) SURFACE AREA or FACTOR = 415.0
Value serves in representing half of the pressure tubes in the core.
W6(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.)
CARDS 1CCCG601 - 1CCCG699, RIGHT BOUNDARY CONDITION CARDS
Cards 11602601
W1(I) BOUNDARY VOLUME NUMBER = 0 (adiabatic b.c.)
Assume that the only sink for heat rejected from the graphite stacks is the fluid within the pressure tubes.
W2(I) INCREMENT = 0
Use sequential expansion format to define an adiabatic b.c. for each of the 14 heat structures whose geometry is described here.
W3(I) BOUNDARY CONDITION TYPE = 0
Adiabatic b.c.
W4(I) SURFACE AREA CODE = 1
W5(R) SURFACE AREA or FACTOR = 415.0
Value serves in representing half of the pressure tubes in the core.
W6(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.)
CARDS 1CCG701 - 1CCG799, SOURCE DATA CARDS
Cards 11602701-11602714
W1(I) SOURCE TYPE = 2
Power from the general table with this number is used as the source.
W2(R) INTERNAL SOURCE MULTIPLIER
Based on a normalized axial power profile distributed amongst the 14 axial nodes. Values are listed below for the respective heat structure number.
0.055436
0.070017
0.079401
0.086764
0.090156
0.090156
0.087846
0.084454
0.080845
0.076658
0.070017
0.059406
0.044031
0.024810
W3(R) DIRECT HEATING MULTIPLIER FOR LEFT BOUNDARY VOLUME = 0
W4(R) DIRECT HEATING MULTIPLIER FOR RIGHT BOUNDARY VOLUME = 0
W5(I) HEAT STRUCTURE NUMBER
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.) Note that these values are normalized to 1.0.
CARDS 1CCCG801 - 1CCCG899, ADDITIONAL LEFT BOUNDARY CARDS
Card 11602801
W1(R) HEATED EQUIVALENT DIAMETER = 0
Value of 0 specifies use of hydraulic diameter.
W2(R) HEATED LENGTH FORWARD = 100
Large number, i.e., > 10, disregards boundary layer effects.
W3(R) HEATED LENGTH REVERSE = 100
Large number, i.e., > 10, disregards boundary layer effects.
W4(R) GRID SPACER LENGTH FORWARD = 0
Disregard any influence of the grid spacers on heat transfer.
W5(R) GRID SPACE LENGTH REVERSE = 0
W6(R) GRID LOSS COEFFICIENT FORWARD = 0
W7(R) GRID LOSS COEFFICIENT REVERSE = 0
W8(R) LOCAL BOILING FACTOR = 1
Assume a flat axial power profile ==> local heat flux / average heat flux = 1.
W9(I) HEAT STRUCTURE NUMBER = 14
Apply the values of this card to each of the 14 heat structures whose geometry is described here (via sequential expansion format.) Note that these values are normalized to 1.0.
(5601) FUEL RODS (RHS)
This heat structure is identical to Heat Structure 1601 with the exception of the following input values.
Card 15601001
W2(I) GAP CONDUCTANCE REFERENCE VOLUME = 560140000
This is the volume most closely associated with the nonfuel region of the fuel pin just above the active zone.
15601401-15601414
W1(R) - W4(R) TEMPERATURE (K)
15601401 967.78 728.48 567.13 553.54
15601402 1115.3 771.93 581.57 563.09
15601403 1220.1 793.23 591.48 569.60
15601404 1266.7 802.35 595.76 572.49
15601405 1266.9 802.91 596.58 573.34
15601406 1248.8 799.05 595.73 573.01
15601407 1241.7 797.77 594.71 572.21
15601408 1243.6 797.46 593.95 571.34
15601409 1248.3 797.42 593.17 570.36
15601410 1248.7 796.85 592.12 569.25
15601411 1217.7 792.36 589.61 567.78
15601412 1140.1 779.08 585.03 565.85
15601413 1013.1 748.97 578.33 563.47
15601414 860.82 694.81 570.22 560.81
Card 15601501
W5(R) SURFACE AREA OR FACTOR = 7092.0
788 fuel channels.
Cards 15601601
W1(I) BOUNDARY VOLUME NUMBER = 560010000
W5(R) SURFACE AREA OR FACTOR = 7092.0
788 fuel channels.
Cards 15601701-15601714
W1(I) SOURCE TYPE = 3
Power from the general table with this number is used as the source.
(5602) PRESSURE TUBE WALLS AND MODERATOR (RHS)
This heat structure is identical to Heat Structure 1602 with the exception of the following input values.
Card 15602100
W1(I) MESH LOCATION FLAG = 1602
Geometry data will be taken from Heat Structure 1602. Thus, Cards 1CCCG101-199, 1CCCG201-299, and 1CCCG301-399 will not be repeated.
Cards 15602401-15602414
15602401 544.37 553.89 674.09 685.86
15602402 550.65 563.60 723.49 740.45
15602403 557.59 572.93 758.99 779.97
15602404 562.43 578.74 775.03 797.81
15602405 564.31 580.59 776.40 799.19
15602406 564.46 580.37 772.15 794.31
15602407 564.15 579.91 770.01 791.90
15602408 563.74 579.56 770.50 792.49
15602409 563.16 579.13 771.69 793.91
15602410 562.47 578.48 771.52 793.79
15602411 561.65 576.93 762.01 783.02
15602412 560.69 574.11 738.45 756.38
15602413 559.64 570.03 699.60 712.87
15602414 558.52 565.09 649.04 656.97
Card 15602501
W1(I) BOUNDARY VOLUME NUMBER = 560010000
W5(R) SURFACE AREA or FACTOR = 394.0
788 fuel channels.
Cards 15602601
W5(R) SURFACE AREA or FACTOR = 394.0
788 fuel channels.
Cards 15602701-15602714
W1(I) SOURCE TYPE = 4
Power from the general table with this number is used as the source.
(6601) FUEL RODS (RHS)
This heat structure is identical to Heat Structure 1601 with the exception of the following input values.
Card 16601001
W2(I) GAP CONDUCTANCE REFERENCE VOLUME = 660140000
This is the volume most closely associated with the nonfuel region of the fuel pin just above the active zone.
Cards 16601401-16601414
16601401 966.46 728.12 567.18 553.65
16601402 1113.4 771.69 581.67 563.26
16601403 1217.7 793.00 591.46 569.67
16601404 1263.3 801.52 595.64 572.47
16601405 1263.4 802.04 596.42 573.28
16601406 1246.2 798.71 595.54 572.91
16601407 1239.0 797.42 594.51 572.10
16601408 1241.0 797.11 593.76 571.24
16601409 1245.6 797.09 592.99 570.27
16601410 1246.0 796.53 591.94 569.17
16601411 1215.2 792.00 589.46 567.71
16601412 1137.9 778.64 584.90 565.79
16601413 1011.4 748.47 578.23 563.42
16601414 859.72 694.38 570.15 560.78
Card 16601501
W5(R) SURFACE AREA OR FACTOR = 369.0
41 fuel channels.
Cards 16601601
W1(I) BOUNDARY VOLUME NUMBER = 660010000
W5(R) SURFACE AREA or FACTOR = 369.0
41 fuel channels.
Cards 16601701-16601714
W1(I) SOURCE TYPE = 5
Power from the general table with this number is used as the source.
(6602) PRESSURE TUBE WALLS AND MODERATOR (RHS)
This heat structure is identical to Heat Structure 1602 with the exception of the following input values.
Card 16602100
W1(I) MESH LOCATION FLAG = 1602
Geometry data will be taken from Heat Structure 1602. Thus, Cards 1CCCG101-199, 1CCCG201-299, and 1CCCG301-399 will not be repeated.
Card 16602401-16602414
16602401 544.42 553.89 673.65 685.36
16602402 550.75 563.66 722.95 739.83
16602403 557.75 573.03 758.39 779.28
16602404 562.49 578.73 774.32 796.98
16602405 564.28 580.50 775.62 798.30
16602406 564.39 580.24 771.34 793.39
16602407 564.07 579.76 769.20 790.98
16602408 563.65 579.42 769.68 791.57
16602409 563.08 578.99 770.87 792.98
16602410 562.40 578.34 770.71 792.87
16602411 561.58 576.81 761.24 782.14
16602412 560.63 574.01 737.76 755.60
16602413 559.59 569.95 699.05 712.26
16602414 558.49 565.04 648.67 656.57
Card 16602501
W1(I) BOUNDARY VOLUME NUMBER = 660010000
W5(R) SURFACE AREA or FACTOR = 20.5
41 fuel channels.
Cards 16602601
W5(R) SURFACE AREA or FACTOR = 20.5
41 fuel channels.
Cards 16602701-16602714
W1(I) SOURCE TYPE = 6
Power from the general table with this number is used as the source.
(7601) FUEL RODS (RHS)
This heat structure is identical to Heat Structure 1601 with the exception of the following input values.
Card 17601001
W2(I) GAP CONDUCTANCE REFERENCE VOLUME = 760140000
This is the volume most closely associated with the nonfuel region of the fuel pin just above the active zone.
Cards 17601401-17601414
17601401 1170.7 777.20 577.70 556.96
17601402 1454.7 838.86 596.24 568.05
17601403 1715.9 884.18 608.53 575.18
17601404 1822.0 901.48 613.56 578.09
17601405 1821.1 901.73 614.08 578.65
17601406 1781.0 895.39 612.10 577.44
17601407 1762.8 891.88 610.38 576.05
17601408 1768.1 891.88 609.33 574.83
17601409 1780.5 892.82 608.29 573.48
17601410 1781.9 892.13 606.93 572.03
17601411 1705.5 879.53 603.53 570.21
17601412 1503.6 847.61 597.17 567.88
17601413 1238.8 793.05 587.78 565.07
17601414 997.65 743.64 576.34 561.96
Card 17601501
W5(R) SURFACE AREA OR FACTOR = 9.0
The one fuel channel.
Cards 17601601
W1(I) BOUNDARY VOLUME NUMBER = 760010000
W5(R) SURFACE AREA or FACTOR = 9.0
The one fuel channels.
Cards 17601701-17601714
W1(I) SOURCE TYPE = 7
Power from the general table with this number is used as the source.
(7602) PRESSURE TUBE WALLS AND MODERATOR (RHS)
This heat structure is identical to Heat Structure 1602 with the exception of the following input values.
Card 17602100
W1(I) MESH LOCATION FLAG = 1602
Geometry data will be taken from Heat Structure 1602. Thus, Cards 1CCCG101-199, 1CCCG201-299, and 1CCCG301-399 will not be repeated.
Card 17602401-17602414
17602401 551.87 566.25 742.27 761.56
17602402 561.50 581.07 812.75 841.20
17602403 569.43 592.60 860.97 895.83
17602404 571.98 596.64 879.91 917.52
17602405 572.43 597.06 880.01 917.58
17602406 571.60 595.68 873.20 909.77
17602407 570.71 594.57 869.86 905.98
17602408 569.92 593.89 870.43 906.73
17602409 568.95 593.14 872.03 908.69
17602410 567.91 592.16 871.81 908.55
17602411 566.60 589.75 858.33 893.07
17602412 564.93 585.27 824.75 854.58
17602413 562.93 578.68 768.92 790.79
17602414 560.67 570.65 695.25 707.95
Card 17602501
W1(I) BOUNDARY VOLUME NUMBER = 760010000
W5(R) SURFACE AREA or FACTOR = 0.5
The one fuel channel.
Cards 17602601
W5(R) SURFACE AREA or FACTOR = 0.5
The one fuel channel.
Cards 17602701-17602714
W1(I) SOURCE TYPE = 8
Power from the general table with this number is used as the source.
(8601) FUEL RODS (RHS)
This heat structure is identical to Heat Structure 1601 with the exception of the following input values.
Card 18601001
W2(I) GAP CONDUCTANCE REFERENCE VOLUME = 860140000
This is the volume most closely associated with the nonfuel region of the fuel pin just above the active zone.
Cards 18601401-18601414
18601401 787.42 659.82 557.61 550.35
18601402 871.58 697.36 568.08 558.20
18601403 927.47 720.76 575.12 563.42
18601404 949.83 729.70 577.83 565.38
18601405 950.00 730.10 578.40 565.96
18601406 942.42 727.47 578.09 565.93
18601407 938.94 726.11 577.70 565.66
18601408 940.11 726.34 577.42 565.32
18601409 942.67 727.02 577.10 564.90
18601410 943.01 726.89 576.65 564.42
18601411 927.14 720.90 575.35 563.67
18601412 886.57 705.52 572.82 562.56
18601413 818.33 678.25 569.03 561.09
18601414 727.64 639.12 564.40 559.37
Card 18601501
W5(R) SURFACE AREA OR FACTOR = 9.0
The one fuel channel.
Cards 18601601
W1(I) BOUNDARY VOLUME NUMBER = 860010000
W5(R) SURFACE AREA or FACTOR = 9.0
The one fuel channels.
Cards 18601701-18601714
W1(I) SOURCE TYPE = 9
Power from the general table with this number is used as the source.
(8602) PRESSURE TUBE WALLS AND MODERATOR (RHS)
This heat structure is identical to Heat Structure 1602 with the exception of the following input values.
Card 18602100
W1(I) MESH LOCATION FLAG = 1602
Geometry data will be taken from Heat Structure 1602. Thus, Cards 1CCCG101-199, 1CCCG201-299, and 1CCCG301-399 will not be repeated.
Card 18602401-18602414
18602401 543.26 548.42 615.56 621.53
18602402 548.57 555.61 645.78 654.19
18602403 554.54 562.88 668.48 678.72
18602404 558.50 567.38 679.09 690.12
18602405 560.02 568.88 680.31 691.34
18602406 560.25 568.91 677.93 688.69
18602407 560.10 568.68 676.68 687.32
18602408 559.87 568.48 676.95 687.63
18602409 559.57 568.26 677.65 688.44
18602410 559.27 567.98 677.62 688.43
18602411 558.91 567.22 672.12 682.38
18602412 558.51 565.80 658.49 667.36
18602413 558.06 563.70 636.20 642.89
18602414 557.53 561.10 607.56 611.66
Card 18602501
W1(I) BOUNDARY VOLUME NUMBER = 860010000
W5(R) SURFACE AREA or FACTOR = 0.5
The one fuel channel.
Cards 18602601
W5(R) SURFACE AREA or FACTOR = 0.5
The one fuel channel.
Cards 18602701-18602714
W1(I) SOURCE TYPE = 10
Power from the general table with this number is used as the source.