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RELAP5 model for the INPP


3.2.3 INTACT LOOP OF PRIMARY CIRCUIT. CIRCULATION THROUGH THE CORE

 

(146) GROUP DISTRIBUTION HEADER (GDH) INLET PIPES (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1460000

W1(A) COMPONENT NAME = gdhinpip

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1460001

W1(I) NUMBER OF VOLUMES = 4

Modeling choice.

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1460101

W1(R) VOLUME FLOW AREA = 1.367 m2

W2(I) VOLUME NUMBER = 4

Applies to all four volumes.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Card 1460201

W1(R) JUNCTION FLOW AREA = 1.367 m2

Consistent with volume flow areas.

W2(I) JUNCTION NUMBER = 3

Applies to all three junctions.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1460301

W1(R) VOLUME LENGTH = 8.75 m

W2(I) VOLUME NUMBER = 1

Card 1460302

W1(R) VOLUME LENGTH = 0.9 m

W2(I) VOLUME NUMBER = 2

Card 1460303

W1(R) VOLUME LENGTH = 3.0 m

W2(I) VOLUME NUMBER = 3

Card 1460304

W1(R) VOLUME LENGTH = 3.2 m

Gate valve.

W2(I) VOLUME NUMBER = 4

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1460401

W1(R) VOLUME OF VOLUME = 0.0

Volume will be calculated by RELAP5 (V = L*A).

W2(I) VOLUME NUMBER = 4

Applies to all volumes.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1460501

W1(R) AZIMUTHAL ANGLE = 0.0

This value is not currently used by RELAP5.

W2(I) VOLUME NUMBER = 4

Applies to all volumes.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1460601

W1(R) INCLINATION ANGLE = 0°

Indicates a horizontal volume.

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1460602

W1(R) INCLINATION ANGLE = -90°

Indicates a vertical volume with downward flow positively valued.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1460603

W1(R) INCLINATION ANGLE = 0°

Indicates a horizontal volume.

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1460604

W1(R) INCLINATION ANGLE = -90°

Indicates a vertical volume with downward flow positively valued.

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1460701

W1(R) ELEVATION CHANGE = 0.0 m

Since the volume is horizontal, it has no associated elevation change.

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1460702

W1(R) ELEVATION CHANGE = -0.9 m

W2(I) VOLUME NUMBER = 2

Applies to second volume.

Card 1460703

W1(R) ELEVATION CHANGE = 0.0 m

Since the volume is horizontal, it has no associated elevation change.

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1460704

W1(R) ELEVATION CHANGE = -3.2 m

W2(I) VOLUME NUMBER = 4

Applies to fourth volume.

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1460801

W1(R) WALL ROUGHNESS = 4.57e-5 m

Commercial steel surface (Ref. [ 3 ], p. 7-6).

W2(R) HYDRAULIC DIAMETER = 0.295 m

W3(I) VOLUME NUMBER = 4

Applies to all volumes.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

Card 1460901

W1(R) FORWARD LOSS COEFFICIENT = 3.72

W2(R) REVERSE LOSS COEFFICIENT = 3.72

The filter - 1.76 and the flow limitter - 1.96. The assumption of no dependence upon flow direction has been made.

W3(I) JUNCTION NUMBER = 1

Card 1460902

W1(R) FORWARD LOSS COEFFICIENT = 0.75

W2(R) REVERSE LOSS COEFFICIENT = 0.75

The assumption of no dependence upon flow direction has been made.

W3(I) JUNCTION NUMBER = 2

Card 1460903

W1(R) FORWARD LOSS COEFFICIENT = 0.15

W2(R) REVERSE LOSS COEFFICIENT = 0.15

The gate valve. The assumption of no dependence upon flow direction has been made.

W3(I) JUNCTION NUMBER = 3

 

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1461001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11000

p = 1 The water packing scheme will not be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 4

Applies to all volumes.

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1461101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 3

Applies to all junctions.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1461201-1461204

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 8342885.0 Pa, 7891193.0, Pa, 7887514.0 Pa, 7897070.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1149492.0 J/kg, 1149494.0 J/kg, 1149518.0 J/kg, 1149543.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2567720. 0 J/kg, 2572766. 0 J/kg, 2572802. 0 J/kg, 2572708. 0 J/kg

VAPOR VOID FRACTION = 0.0 (Applies to the all cases).

W7(I) VOLUME NUMBER = 1, 2, 3, 4

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1461300

W1(I) CONTROL FLAG = 0

Velocities will be assumed for the first and second words on Cards 1461301 through 1461303.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Cards 1201301 and 1201303

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 17.67005 m/s, 4.66213 m/s, 5.03014 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 17.67005 m/s, 5.21971 m/s, 5.03014 m/s

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2, 3

 

(147) GDH CHECK VALVE (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1470000

W1(A) COMPONENT NAME = lgdhchk

W2(A) COMPONENT TYPE = valve

CARD CCC0101 - CCC0109, VALVE GEOMETRY

Card 1470101

W1(I) FROM CONNECTION = 146010000

From the outlet side of the MCP discharge header.

W2(I) TO CONNECTION = 1500000000

To the inlet side of the GDH.

W3(R) JUNCTION AREA = 0.0

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 0.6

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 0.6

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 001100

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5 for valves.

c = 1 The choking model will not be applied.

a = 1 The abrupt area change option will be used (required by RELAP5 for a check valve).

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5 for valves.

CARD CCC0201, VALVE INITIAL CONDITIONS

Card 1470201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 4.66217 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 5.21968 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

CARD CCC0300, VALVE TYPE

Card 1470300

W1(A) VALVE TYPE = chkvlv

A check valve is modeled.

CARD CCC0301 - CCC0399, VALVE DATA AND INITIAL CONDITIONS

Card 1470301

W1(I) CHECK VALVE TYPE = 0

A static pressure/flow-controlled check valve (has hysteresis effect) is assumed.

W2(I) CHECK VALVE INITIAL POSITION = 0

The valve is initially open.

W3(R) CLOSING BACK PRESSURE = 700.0 Pa

W4(R) LEAK RATIO = 0.0

 

(150) GROUP DISTRIBUTING HEADERS (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1500000

W1(A) COMPONENT NAME = lgdh

W2(A) COMPONENT TYPE = branch

CARD CCC0001, BRANCH INFORMATION

Card 1500001

W1(I) NUMBER OF JUNCTIONS = 0

W2(I) INITIAL CONDITION CONTROL FLAG = 0

Not applicable since no junctions are defined

CARD CCC0101 - CCC0109, BRANCH VOLUME GEOMETRY

Card 1500101

W1(R) VOLUME FLOW AREA = 1.367 m2

The combined area of 20 GDHs x 0.06835 m3 each.

W2(R) LENGTH OF VOLUME = 8.0 m

W3(R) VOLUME OF VOLUME = 0.0

Volume to be calculated by RELAP5.

W4(R) AZIMUTHAL ANGLE = 0.0

Not currently used by RELAP5.

W5(R) INCLINATION ANGLE = 0.0

W6(R) ELEVATION CHANGE = 0.0 m

W7(R) WALL ROUGHNESS = 4.57e-5 m

Commercial steel surface (Ref. [ 3 ], p. 7-6).

W8(R) HYDRAULIC DIAMETER = 0.295 m

This is the hydraulic diameter of a GDH.

W9(I) VOLUME CONTROL FLAGS (pvbfe) = 01000

p = 0 The water packing scheme will be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

CARD CCC0200, BRANCH VOLUME INITIAL CONDITIONS

Card 1500200

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 7902021.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1149610.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2572659. 0 J/kg

VAPOR VOID FRACTION = 0.0

 

(152) FLOW CONTROL VALVE (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1520000

W1(A) COMPONENT NAME = lcntrvlv

W2(A) COMPONENT TYPE = sngljun

CARD CCC0101 - CCC0109, SINGLE-JUNCTION GEOMETRY

Card 1520101

W1(I) FROM CONNECTION = 155010000

From the outlet side of the GDH.

W2(I) TO CONNECTION = 155000000

To the inlet side of piping leading to the reactor.

W3(I) JUNCTION AREA = 0.24414 m2

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 3.5

Determined by trial and error as that value which gives reported loop flow at nominal conditions.

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 3.5

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

CARD CCC0201, SINGLE-JUNCTION INITIAL CONDITIONS

Card 1520201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 26.1056 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 26.1056 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

 

(155) PIPING FROM THE GDH (ACTUALLY THE FLOW CONTROL VALVE) TO THE REACTOR (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1550000

W1(A) COMPONENT NAME = lrxin

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1550001

W1(I) NUMBER OF VOLUMES = 5

Modeling choice.

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1550101

W1(R) VOLUME FLOW AREA = 1.629 m2

The flow area of a single reactor inlet pipe is 1.963e-3 m2 (Ref. [ 6 ]). The combined area of 830 of these pipes is 1.629 m2.

W2(I) VOLUME NUMBER = 5

Applies to all five volumes.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Card 1550201

W1(R) JUNCTION FLOW AREA = 1.629 m2

Consistent with volume flow area.

W2(I) JUNCTION NUMBER = 4

Applies to four junctions.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1550301

W1(R) VOLUME LENGTH = 3.27 m

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1550302

W1(R) VOLUME LENGTH = 7.1289 m

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1550303

W1(R) VOLUME LENGTH = 2.585 m

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1550304

W1(R) VOLUME LENGTH = 7.568 m

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1550305

W1(R) VOLUME LENGTH = 0.435 m

W2(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1550401

W1(R) VOLUME OF VOLUME = 0.0

Volume to be calculated by RELAP5.

W2(I) VOLUME NUMBER = 5

Applies to all five volumes.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1550501

W1(R) AZIMUTHAL ANGLE = 0.0

Not currently used by RELAP5.

W2(I) VOLUME NUMBER = 5

All five volumes.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1550601

W1(R) INCLINATION ANGLE = -90°

Indicates a vertical volume with downward flow positively valued. Consistent with the length and elevation change defined for this volume.

W2(I) VOLUME NUMBER = 1

Card 1550602

W1(R) INCLINATION ANGLE = 0°

Indicates a horizontal volume. Consistent with th1.for these volumes.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1550603

W1(R) INCLINATION ANGLE = -90°

Indicates a vertical volume with downward flow positively valued. Consistent with the length and elevation change defined for this volume.

W2(I) VOLUME NUMBER = 3

Card 1550604

W1(R) INCLINATION ANGLE = 0°

Indicates a horizontal volume. Consistent with th2.for these volumes.

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1550605

W1(R) INCLINATION ANGLE = 0°

Indicates a horizontal volume. Consistent with th3.for these volumes.

W2(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1550701

W1(R) ELEVATION CHANGE = -3.27 m

W2(I) VOLUME NUMBER = 1

Card 1550702

W1(R) ELEVATION CHANGE = 0.0

No elevation change.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1550703

W1(R) ELEVATION CHANGE = -2.585 m

W2(I) VOLUME NUMBER = 3

Card 1550704

W1(R) ELEVATION CHANGE = 0 m

W2(I) VOLUME NUMBER = 4

Card 1550705

W1(R) ELEVATION CHANGE = 0.435 m

W2(I) VOLUME NUMBER = 5

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1550801

W1(R) WALL ROUGHNESS = 4.57e-5 m

Commercial steel surface (Ref. [ 3 ], p. 7-6).

W2(R) HYDRAULIC DIAMETER = 0.05 m

The hydraulic diameter of reactor inlet piping (Ref. [ 6 ]).

W3(I) VOLUME NUMBER = 5

Applies to all five volumes.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

Card 1550901

W1(R) FORWARD LOSS COEFFICIENT = 0.653

W2(R) REVERSE LOSS COEFFICIENT = 0.653

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 4

Applies to four junctions.

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1551001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11000

p = 1 The water packing scheme will not be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 5

Applies to all volumes

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1551101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 4

Applies to four junctions.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1551201-1551205

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 7568709.0 Pa, 7564954.0, Pa, 7558936.0 Pa, 7552000.0 Pa, 7534656.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1149648.0 J/kg, 1149740.0 J/kg, 1149773.0 J/kg, 1149873.0 J/kg, 1149878.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2576005. 0 J/kg, 2576044. 0 J/kg, 2576105. 0 J/kg, 2576176. 0 J/kg, 2576353.0 J/kg

VAPOR VOID FRACTION = 0.0 (Applies to the all cases).

W7(I) VOLUME NUMBER = 1, 2, 3, 4, 5

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1551300

W1(I) CONTROL FLAG = 0

Velocities will be assumed for the first and second words on Cards 1551301 and 1551304.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Cards 1551301 and 1551304

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.91408 m/s, 3.91489 m/s, 3.91552 m/s, 3.91881 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 4.43804 m/s, 3.91489 m/s, 4.43974 m/s, 3.91881 m/s

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2, 3, 4

 

(157) JUNCTION BETWEEN PIPING FROM THE GDH LEADING TO THE REACTOR CORE (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1570000

W1(A) COMPONENT NAME = lgdhtorx

W2(A) COMPONENT TYPE = sngljun

CARD CCC0101 - CCC0109, SINGLE-JUNCTION GEOMETRY

Card 1570101

W1(I) FROM CONNECTION = 155010000

From the outlet side of the piping leading from the GDH.

W2(I) TO CONNECTION = 158000000

To the inlet side of core inlet piping.

W3(I) JUNCTION AREA = 0.0

Sets the area to the minimum area of the adjoining volumes.

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 0.0

No flow losses are associated with this component.

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 0.0

See comment above.

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

CARD CCC0201, SINGLE-JUNCTION INITIAL CONDITIONS

Card 1570201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.91924 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 4.44409 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

 

(158) CORE INLET PIPING (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1580000

W1(A) COMPONENT NAME = lcorein

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1580001

W1(I) NUMBER OF VOLUMES = 3

Modeling choice.

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1580101

W1(R) VOLUME FLOW AREA = 1.629 m2

The flow area of the leading (and major) portion of a core inlet pipe (point V to point e on the referenced sketch) is 1.963e-3 m2. The combined area of 830 of these pipes is 1.629 m2.

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1580102

W1(R) VOLUME FLOW AREA = 4.172 m2

The flow area from point b to point c is 5.026e-3 m2. The combined area of 830 such paths is 4.172 m2.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1580103

W1(R) VOLUME FLOW AREA = 1.887 m2

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Card 1580201

W1(R) JUNCTION FLOW AREA = 0.0

Sets the area to the minimum area of the adjoining volumes.

W2(I) JUNCTION NUMBER = 2

Applies to both junctions.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1580301

W1(R) VOLUME LENGTH = 3.17 m

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1580302

W1(R) VOLUME LENGTH = 2.46 m

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1580303

W1(R) VOLUME LENGTH = 0.19 m

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1580401

W1(R) VOLUME OF VOLUME = 0.0

Volume to be calculated by RELAP5.

W2(I) VOLUME NUMBER = 3

All three volumes.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1580501

W1(R) AZIMUTHAL ANGLE = 0.0

Not currently used by RELAP5.

W2(I) VOLUME NUMBER = 3

All three volumes.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1580601

W1(R) INCLINATION ANGLE = 90°

Indicates a vertical volume with upward flow positively valued. Consistent with the length and elevation change defined for this volume.

W2(I) VOLUME NUMBER = 3

All three volumes.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1580701

W1(R) ELEVATION CHANGE = 3.17 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1580702

W1(R) ELEVATION CHANGE = 2.46 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1580703

W1(R) ELEVATION CHANGE = 0.19 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1580801

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p.363).

W2(R) HYDRAULIC DIAMETER = 0.050 m

The hydraulic diameter between points V and b.

W3(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1580802

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p.363).

W2(R) HYDRAULIC DIAMETER = 0.08 m

The hydraulic diameter between points c and d.

W3(I) VOLUME NUMBER = 3

Applies to the second and third volumes.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

Card 1580901

W1(R) FORWARD LOSS COEFFICIENT = 0.5

W2(R) REVERSE LOSS COEFFICIENT = 0.5

W3(I) JUNCTION NUMBER = 1

Applies to first junction.

Card 1580902

W1(R) FORWARD LOSS COEFFICIENT = 2.5

W2(R) REVERSE LOSS COEFFICIENT = 2.5

W3(I) JUNCTION NUMBER = 2

Applies to second junction.

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1581001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11000

p = 1 The water packing scheme will not be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 3

Applies to all three volumes

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1581101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001100

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 1 The abrupt area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 2

Applies to both junctions.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1581201-1581203

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 7516963.0 Pa, 7490644.0, Pa, 7463140.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1149916.0 J/kg, 1149982.0 J/kg, 1149984.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2576535. 0 J/kg, 2576805. 0 J/kg, 2577088. 0 J/kg

VAPOR VOID FRACTION = 0.0 (Applies to the all cases).

W7(I) VOLUME NUMBER = 1, 2, 3

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1581300

W1(I) CONTROL FLAG = 0

Velocities will be assumed for the first and second words on Cards 1581301 and 1581302.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Card 1581301 and 1581302

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.9227 m/s, 3.39441 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 4.44013 m/s, 3.87336 m/s

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2

 

(159) CORE INLET JUNCTION (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1590000

W1(A) COMPONENT NAME = lcoinjun

W2(A) COMPONENT TYPE = sngljun

CARD CCC0101 - CCC0109, SINGLE-JUNCTION GEOMETRY

Card 1590101

W1(I) FROM CONNECTION = 158010000

From the outlet side of core inlet piping.

W2(I) TO CONNECTION = 160000000

To the inlet side of the core.

W3(I) JUNCTION AREA = 0.0

Sets the area to the minimum area of the adjoining volumes.

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 0.0

The appropriate junction control flag has been set for an abrupt area change loss to be calculated by RELAP5 at this junction. No additional loss is defined here.

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 0.0

See comment above.

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 001100

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 1 The abrupt area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

CARD CCC0201, SINGLE-JUNCTION INITIAL CONDITIONS

Card 1590201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.395556 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 3.89369 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

 

(160) REACTOR CORE (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1600000

W1(A) COMPONENT NAME = lcore

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1600001

W1(I) NUMBER OF VOLUMES = 14

Modeling choice.

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1600101

W1(R) VOLUME FLOW AREA = 1.88659 m2

The flow area of a single pressure tube is 2.273e-3 m2. The combined area of 830 of these tubes is 1.88659.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14. The cross section of the flow path through a pressure tube is uniform except at the grid spacers.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Note that the flow losses associated with the grid spacers and the top and bottom end plates of a fuel assembly are accounted for with the loss coefficients placed on the internal junctions of this component.

Card 1600201

W1(R) JUNCTION FLOW AREA = 1.88659 m2

The minor loss coefficients reported for the core appear to be associated with the nominal flow area of a pressure tube (as opposed to the smaller area of a grid spacer). Hence, junction areas have been defined equivalent to volume flow areas.

W2(I) JUNCTION NUMBER = 13

Applies to Junctions 1-13.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1600301

W1(R) VOLUME LENGTH = 0.5 m

The total core height of 7.0 m (Ref. [ 6 ]) has been broken into 14 equal length segments.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1600401

W1(R) VOLUME OF VOLUME = 0

Volume to be calculated by RELAP5.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1600501

W1(R) AZIMUTHAL ANGLE = 0

Not currently used by RELAP5.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1600601

W1(R) INCLINATION ANGLE = 90°

Vertical volume with positive flow being upward.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1600701

W1(R) ELEVATION CHANGE = 0.5 m

Consistent with the length and inclination angle defined above.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1600801

W1(R) WALL ROUGHNESS = 1.5e-6 m

This value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 8.57e-3 m

The hydraulic diameter of a pressure tube.

W3(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

As mentioned above, the flow losses associated with the grid spacers and the top and bottom end plates of a fuel assembly are accounted for with the loss coefficients placed on the junctions of this component. The best-estimate cummulative minor loss coefficient for the core is 28.4. Approximately two-thirds of this is associated with the upper half of the core. The remainder is associated with the lower half. There are 13 internal junctions associated with this component. For simplicity, the loss coefficient reported for the lower half of the core will be portioned evenly between the first seven junctions. The loss coefficient reported for the upper half of the core will be portioned evenly between Junctions 8-13.

Card 1600901

W1(R) FORWARD LOSS COEFFICIENT = 1.35

W2(R) REVERSE LOSS COEFFICIENT = 1.35

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 7

Applies to Junctions 1-7.

Card 1600902

W1(R) FORWARD LOSS COEFFICIENT = 3.16

W2(R) REVERSE LOSS COEFFICIENT = 3.16

W3(I) JUNCTION NUMBER = 13

Applies to Junctions 8-13.

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1601001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11100

p = 1 The water packing scheme will be used.

v = 1 The vertical stratification model will not be used.

b = 1 The rod bundle interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 14

Applies to Volumes 1-14.

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1601101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 13

Applies to Junctions 1-13.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1601201-1601214

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 7457610.0 Pa, 7442326.0, Pa, 7426902.0 Pa, 7411321.0 Pa, 7395703.0 Pa, 7377850.0 Pa, 7356482.0 Pa, 7331008.0 Pa, 7282404.0 Pa, 7223468.0 Pa, 7158860.0 Pa, 7088552.0 Pa, 7009864.0 Pa, 6923110.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1169080.0 J/kg, 1197400.0 J/kg, 1229853.0 J/kg, 1257743.0 J/kg, 1270723.0 J/kg, 1275327.0 J/kg, 1276044.0 J/kg, 1274936.0 J/kg, 1272566.0 J/kg, 1269635.0 J/kg, 1266381.0 J/kg, 1262831.0 J/kg, 1258933.0 J/kg, 1254751.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2577146. 0 J/kg, 2577304. 0 J/kg, 2577463. 0 J/kg, 2577584. 0 J/kg, 2577508. 0 J/kg, 2577585. 0 J/kg, 2577874. 0 J/kg, 2578247. 0 J/kg, 2578851. 0 J/kg, 2579419. 0 J/kg, 2580073. 0 J/kg, 2580815. 0 J/kg, 2581577. 0 J/kg, 2582286. 0 J/kg,

VAPOR VOID FRACTION = 0.0 (Applies to the three nodes), 0.0875857, 0.2455496, 0.3922836, 0.4711699, 0.559034, 0.68193, 0.738368, 0.773846, 0.801518, 0.821245, 0.842436.

W7(I) VOLUME NUMBER = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1601300

W1(I) CONTROL FLAG = 0

Velocities are assumed for the first and second words on Cards 1601301 through 1601399.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Cards 1601301-1601313

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.42492 m/s, 3.47016 m/s, 3.524886 m/s, 3.87062 m/s, 4.61486 m/s, 5.60351 m/s, 6.3233 m/s, 7.38408 m/s, 9.73506 m/s, 11.2977 m/s, 12.51532 m/s, 13.85004 m/s, 15.1684 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 3.42492 m/s, 3.47016 m/s, 5.00954 m/s, 4.44288 m/s, 6.31954 m/s, 7.98758 m/s, 10.44147 m/s, 12.19986 m/s, 12.937 m/s, 14.594 m/s, 16.3031 m/s, 17.76858 m/s, 18.93673 m/s, 4

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13

 

(161) CORE OUTLET JUNCTURE (LHS)

 

Note that the flow choking model has been enabled for this component.

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1610000

W1(A) COMPONENT NAME = lcojun

W2(A) COMPONENT TYPE = sngljun

CARD CCC0101 - CCC0109, SINGLE-JUNCTION GEOMETRY

Card 1610101

W1(I) FROM CONNECTION = 160010000

From the outlet of the core.

W2(I) TO CONNECTION = 162000000

To the inlet of core outlet piping.

W3(I) JUNCTION AREA = 0.0

Sets the area to the minimum area of the adjoining volumes.

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 0.96

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 0.96

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 000000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 0 The choking model will be applied.

a = 0 The abrupt area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

CARD CCC0201, SINGLE-JUNCTION INITIAL CONDITIONS

Card 1610201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 17.54057 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 19.53575 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

 

(162) CORE OUTLET PIPING (LHS)

 

Piping from point g to point d of the figure in Ref. [ 6 ] is represented with this component. Six volumes are utilized. The first, second, and third volumes span the piping from point g to point f in the figure. The fourth volume spans from point f to point e. The fifth and sixth volumes span from e to d. Note that the points described in the cards for this component refer to Ref. [ 6 ].

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1620000

W1(A) COMPONENT NAME = lcorout

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1620001

W1(I) NUMBER OF VOLUMES = 5

Modeling choice.

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1620101

W1(R) VOLUME FLOW AREA = 3.69193 m2

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1620102

W1(R) VOLUME FLOW AREA = 3.86531 m2

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1620103

W1(R) VOLUME FLOW AREA = 1.9256 m2

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1620104

W1(R) VOLUME FLOW AREA = 3.27933 m2

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1620105

W1(R) VOLUME FLOW AREA = 6.07809 m2

W2(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Junction areas are defined here such that the minor loss coefficients identified with certain sections of piping in Ref. [ 6 ] can be applied directly (with the exception of the lowermost section, which has been added to the core pipe as documented above). Each junction area has been set equal to the volume area of one or the other of the two volumes it joins.

Card 1620201

W1(R) JUNCTION FLOW AREA = 3.69193 m2

W2(I) JUNCTION NUMBER = 1

Applies to the first junction.

Card 1620202

W1(R) JUNCTION FLOW AREA = 3.86531 m2

W2(I) JUNCTION NUMBER = 2

Applies to the second junction.

Card 1620203

W1(R) JUNCTION FLOW AREA = 1.9256 m2

W2(I) JUNCTION NUMBER = 3

Applies to the third junction.

Card 1620204

W1(R) JUNCTION FLOW AREA = 3.27933 m2

W2(I) JUNCTION NUMBER = 4

Applies to the fourth junction.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1620301

W1(R) VOLUME LENGTH = 0.512 m

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1620302

W1(R) VOLUME LENGTH = 2.64 m

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1620303

W1(R) VOLUME LENGTH = 1.00 m

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1620304

W1(R) VOLUME LENGTH = 0.955 m

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1620305

W1(R) VOLUME LENGTH = 1.223 m

W2(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1620401

W1(R) VOLUME OF VOLUME = 0.0

Volume to be calculated by RELAP5.

W2(I) VOLUME NUMBER = 5

All five volumes.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1620501

W1(R) AZIMUTHAL ANGLE = 0.0

Not currently used by RELAP5.

W2(I) VOLUME NUMBER = 5

Applies to all five volumes.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1620601

W1(R) INCLINATION ANGLE = 90°

Indicates a vertical volume with upward flow positively valued. All piping represented by this component has vertical orientation.

W2(I) VOLUME NUMBER = 5

All five volumes.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1620701

W1(R) ELEVATION CHANGE = 0.512 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1620702

W1(R) ELEVATION CHANGE = 2.64 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1620703

W1(R) ELEVATION CHANGE = 1.00 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1620704

W1(R) ELEVATION CHANGE = 0.955 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1620705

W1(R) ELEVATION CHANGE = 1.223 m

Consistent with the length and angle defined for this volume.

W2(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1620801

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 0.047 m

W3(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1620802

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 0.040 m

W3(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1620803

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 0.020 m

W3(I) VOLUME NUMBER = 3

Applies to the third volume.

Card 1620804

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 0.039 m

W3(I) VOLUME NUMBER = 4

Applies to the fourth volume.

Card 1620805

W1(R) WALL ROUGHNESS = 1.5e-6 m

Estimate. Value is for drawn tubing (Ref. [ 9 ], p. 363).

W2(R) HYDRAULIC DIAMETER = 0.042 m

W3(I) VOLUME NUMBER = 5

Applies to the fifth volume.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

Card 1620901

W1(R) FORWARD LOSS COEFFICIENT = 0.10

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W2(R) REVERSE LOSS COEFFICIENT = 0.10

W3(I) JUNCTION NUMBER = 1

Applies to the first junction.

Card 1620902

W1(R) FORWARD LOSS COEFFICIENT = 0.13

W2(R) REVERSE LOSS COEFFICIENT = 0.13

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 2

Applies to the second junction.

Card 1620903

W1(R) FORWARD LOSS COEFFICIENT = 0.50

W2(R) REVERSE LOSS COEFFICIENT = 0.50

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 3

Applies to the third junction.

Card 1620904

W1(R) FORWARD LOSS COEFFICIENT = 1.70

W2(R) REVERSE LOSS COEFFICIENT = 1.70

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 4

Applies to the fourth junction.

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1621001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11000

p = 1 The water packing scheme will not be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 5

Applies to all five volumes

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1621101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 4

Applies to all four junctions.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1621201-1621205

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 6902321.0 Pa, 6894152.0 Pa, 6865540.0 Pa, 6854965.0 Pa, 6844131.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1253205.0 J/kg, 1252662.0 J/kg, 1251393.0 J/kg, 1250794.0 J/kg, 1250217.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2582558. 0 J/kg, 2582723. 0 J/kg, 2582944. 0 J/kg, 2583000. 0 J/kg, 2583073. 0 J/kg

VAPOR VOID FRACTION = 0.0 (Applies to the all nodes)

W7(I) VOLUME NUMBER = 1, 2, 3, 4, 5

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1621300

W1(I) CONTROL FLAG = 0

Velocities will be assumed for the first and second words on cards 1621301 through 1621304.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Cards 1621301-1621304

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 8.16807 m/s, 7.4013 m/s, 17.61044 m/s, 9.44579 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 10.1581 m/s, 9.69717 m/s, 18.9039 m/s, 11.3098 m/s

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2, 3, 4

 

(163) REACTOR OUTLET JUNCTION (LHS)

 

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1630000

W1(A) COMPONENT NAME = lrxojun

W2(A) COMPONENT TYPE = sngljun

CARD CCC0101 - CCC0109, SINGLE-JUNCTION GEOMETRY

Card 1630101

W1(I) FROM CONNECTION = 162010000

From the outlet side of core outlet piping.

W2(I) TO CONNECTION = 165000000

To the inlet side of the piping leading from the reactor to the steam drums.

W3(I) JUNCTION AREA = 6.078

This is the area of the upper of the two sections identified between points e and d of the figure in Ref. [ 6 ], multiplied by 830. (Areas of the reference are for a single pressure tube.)

W4(R) FORWARD FLOW ENERGY LOSS COEFFICIENT = 2.27

This is the minor loss coefficient associated with the upper of the two sections identified between points e and d of the figure in Ref. [ 6 ].

W5(R) REVERSE FLOW ENERGY LOSS COEFFICIENT = 2.27

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W6(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 The horizontal stratification option will not be used.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 A normal junction will be used.

CARD CCC0201, SINGLE-JUNCTION INITIAL CONDITIONS

Card 1630201

W1(I) CONTROL WORD = 0

If 0, the next two words are velocities.

W2(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 3.97312 m/s

W3(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 6.47625 m/s

W4(R) INTERFACE VELOCITY = Enter 0 m/s.

 

(165) PIPING FROM THE REACTOR TO THE STEAM DRUM (LHS)

 

Piping from point d to point a of the figure in Ref. [ 6 ] is represented with this component. Three volumes are utilized. The first volume spans the piping from point d to point c in the figure. The second volume spans from point c to point b. The third volume spans from b to a. Note that the point described in the cards for this component all refer to Ref. [ 6 ].

CARD CCC0000, COMPONENT NAME AND TYPE

Card 1650000

W1(A) COMPONENT NAME = lrxtodrm

W2(A) COMPONENT TYPE = pipe

CARD CCC0001, PIPE INFORMATION

Card 1650001

W1(I) NUMBER OF VOLUMES = 3

CARD CCC0101 - CCC0199, PIPE VOLUME FLOW AREAS

Card 1650101

W1(R) VOLUME FLOW AREA = 3.01456 m2

VOLUME NUMBER = 2

Applies to the first and second volumes.

Card 1650102

W1(R) VOLUME FLOW AREA = 6.51915 m2

The reported area for this section is 6.51915 m2

VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0201 - CCC0299, PIPE JUNCTION FLOW AREA

Card 1650201

W1(R) JUNCTION FLOW AREA = 3.01456 m2

Consistent with the above flow area for the first and second volumes.

W2(I) JUNCTION NUMBER = 2

Both junctions.

CARD CCC0301 - CCC0399, PIPE VOLUME LENGTHS

Card 1650301

W1(R) VOLUME LENGTH = 16.2333 m

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1650302

W1(R) VOLUME LENGTH = 4.28 m

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1650303

W1(R) VOLUME LENGTH = 3.2 m

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0401 - CCC0499, PIPE VOLUME VOLUMES

Card 1650401

W1(R) VOLUME OF VOLUME = 0.0

Volume will be calculated by RELAP5 (V=L*A).

W2(I) VOLUME NUMBER = 3

Applies to all three volumes.

CARD CCC0501 - CCC0599, PIPE VOLUME HORIZONTAL ANGLES

Card 1650501

W1(R) AZIMUTHAL ANGLE = 0.0

Not currently used by RELAP5.

W2(I) VOLUME NUMBER = 3

Applies to all three volumes.

CARD CCC0601 - CCC0699, PIPE VOLUME VERTICAL ANGLES

Card 1650601

W1(R) INCLINATION ANGLE = 0°

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1650602

W1(R) INCLINATION ANGLE = 90°

Indicates a vertical volume with upward flow positively valued. The elevation change from the inlet to the outlet of the piping identified between points c and b is equivalent to length of the piping.

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1650603

W1(R) INCLINATION ANGLE = 43.1865°

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0701 - CCC0799, PIPE VOLUME ELEVATION CHANGES

Card 1650701

W1(R) ELEVATION CHANGE = 0.0

W2(I) VOLUME NUMBER = 1

Applies to the first volume.

Card 1650702

W1(R) ELEVATION CHANGE = 4.28 m

W2(I) VOLUME NUMBER = 2

Applies to the second volume.

Card 1650703

W1(R) ELEVATION CHANGE = 2.19 m

W2(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0801 - CCC0899, PIPE VOLUME FRICTION DATA

Card 1650801

W1(R) WALL ROUGHNESS = 4.57e-5 m

Commercial steel surface (Ref. [ 3 ], p. 7-6).

W2(R) HYDRAULIC DIAMETER = 0.068 m

W3(I) VOLUME NUMBER = 2

Applies to the first and second volumes.

Card 1650802

W1(R) WALL ROUGHNESS = 4.57e-5 m

Commercial steel surface (Ref. [ 3 ], p. 7-6).

W2(R) HYDRAULIC DIAMETER = 0.104 m

W3(I) VOLUME NUMBER = 3

Applies to the third volume.

CARD CCC0901 - CCC0999, PIPE JUNCTION LOSS

Card 1650901

W1(R) FORWARD LOSS COEFFICIENT = 0.97

W2(R) REVERSE LOSS COEFFICIENT = 0.97

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 1

Applies to the first junction.

Card 1650902

W1(R) FORWARD LOSS COEFFICIENT = 0.41

W2(R) REVERSE LOSS COEFFICIENT = 0.41

Assume no dependence on flow direction and define the same value in the reverse direction as in the forward direction.

W3(I) JUNCTION NUMBER = 2

Applies to the second junction.

CARD CCC1001 - CCC1099, PIPE VOLUME CONTROL FLAGS

Card 1651001

W1(I) VOLUME CONTROL FLAGS (pvbfe) = 11000

p = 1 The water packing scheme will not be used.

v = 1 The vertical stratification model will not be used.

b = 0 The pipe interphase friction model will be applied.

f = 0 Wall friction effects will be computed.

e = 0 The nonequilibrium calculation will be used.

W2(I) VOLUME NUMBER = 3

Applies to all three volumes.

CARD CCC1101 - CCC1199, PIPE JUNCTION CONTROL FLAGS

Card 1651101

W1(I) JUNCTION CONTROL FLAGS (fvcahs) = 001000

f = 0 The CCFL model will not be applied.

v = 0 This digit is not used by RELAP5.

c = 1 The choking model will not be applied.

a = 0 The smooth area change option will be used.

h = 0 The nonhomogeneous option will be used.

s = 0 This digit is not used by RELAP5.

W2(I) JUNCTION NUMBER = 2

Applies to both junctions.

CARD CCC1201 - CCC1299, PIPE VOLUME INITIAL CONDITIONS

Cards 1651201-1651203

W1(I) CONTROL WORD (e b t).

e This digit specifies the fluid

b This digit specifies the boron

t This digit specifies how the following words are to be used to determine the initial thermodynamic state, if t=0 the next four words are interpreted as pressure, liquid specific internal energy, vapor specific internal energy and vapor void fraction. W6 should be 0.0.

W2(R)-W6(R) QUANTITIES AS DESCRIBED UNDER WORD 1 (W1).

PRESSURE = 6804627.0 Pa, 6772444.0 Pa, 6757387.0 Pa

LIQUID SPECIFIC INTERNAL ENERGY = 1248283.0 J/kg, 1246613.0 J/kg, 1245916.0 J/kg

VAPOR SPECIFIC INTERNAL ENERGY = 2583284. 0 J/kg, 2583734. 0 J/kg, 2583662. 0 J/kg

VAPOR VOID FRACTION = 0.694914, 0.843874, 0.554763

W7(I) VOLUME NUMBER = 1, 2, 3

CARD CCC1300, PIPE JUNCTION CONDITIONS CONTROL WORDS

Card 1651300

W1(I) CONTROL FLAG = 0

Velocities will be assumed for the first and second words on cards CCC1301 through CCC1304.

CARD CCC1301 - CCC1399, PIPE JUNCTION INITIAL CONDITIONS

Cards 1651301 and 1651302

W1(R) INITIAL LIQUID VELOCITY OR MASS FLOW = 5.64656 m/s, 11.01448 m/s

W2(R) INITIAL VAPOR VELOCITY OR MASS FLOW = 14.88962 m/s, 12.3675 m/s

W3(R) INTERFACE VELOCITY = Enter 0 m/s.

W4(I) JUNCTION NUMBER = 1, 2