2.8.2.10. Block 18 — PMR4IN — PRIMAR-4 Floating-Point Input

TMDBP4

1

s

Time when IDBPR4 is set to IDBP4N. (See IDBPR4 and IDBP4N).

FLOSSL (ISGL)

2-41

kg/s

Initial flow rate in liquid flow segments. The value input for the single segment representing all channels (except the bypass channel) is not used.

ZINL (ISGL)

42-81

m

Height of inlet to liquid segment.

CVLMLT (M,ISGL)

82-161

Flow rate multiplicity factors at liquid segment ends. M=1 at inlet, M=2 at outlet.

ZOUTEL (IELL)

162-301

m

Height at outlet of the liquid element. Note: ZOUTEL(IELL) is also the height at the inlet of element IELL+1 if IELL+1 is in the same segment.

XLENEL (IELL)

302-441

m

Length of element. (See comment for all channels in FLOSSL).

AREAEL (IELL)

442-581

m^2

Cross-sectional flow area of liquid elements. (See comment for all channels in FLOSSL).

DHELEM (IELL)

582-721

m

Hydraulic diameter of liquid element.

ROUGHL (IELL)

722-861

m

Pipe surface roughness, for friction factor.

BENDNM (IELL)

862-1001

Number of bends in each liquid element.

G2PRDR (IELL)

1002-1141

Initial orifice coefficient. G2 pressure-drop coefficient. ΔP=G2PRDR*G*ABS(G)/(2.*RHO).

BNDLOD

1142

Effective L/D per bend.

WALLMC (IELL)

1143-1282

J/m-K

Pipe wall mass * heat capacity /length.

WALLH (IELL)

1283-1422

W/m^2-K

Pipe wall heat-transfer coefficient.

VOLLGC (ICV)

1423-1460

m^3

Total volume of the compressible volume, liquid + gas.

PRESG0 (ICV)

1461-1498

Pa

Initial gas pressure in the compressible volume having gas.

ALPHAP (ICV)

1499-1536

1/Pa

Volume pressure expansion coefficient, (1/V)dV/dP, for the compressible volume.

ALPHAT (ICV)

1537-1574

1/K

Volume thermal expansion coefficient, (1/V)dV/dT, for the compressible volume.

ZCVL (ICV)

1575-1612

m

Reference height for liquid pressure in the compressible volume.

AREAIN (ICV)

1613-1650

m^2

Area of liquid-gas interface in the compressible volume. Input 1.0 if there is no interface.

TREFCV (ICV)

1651-1688

K

Initial steady-state gas temperature if gas is present. Steady-state gas temperature = liquid temperature if input as 0. Not used for a liquid-only compressible volume.

GAMGSC

1689

Cp/Cv for cover gas (P*V)GAMGSC = constant. Used for all compressible volumes containing cover gas.

RGASC

1690

Pa-m^3/kg-K

Gas constant for cover gas, P * V = M * RGASC * T. Used for all compressible volumes containing cover gas.

R = 8314/molecular weight.

R = 2078. for He.

R = 208.1 for Argon.

U0CVGS

1691

Pa-s

Viscosity of cover gas at reference temperature TRFU.

Suggested value:

1.94x10-5 at 293 K for He

2.22x10-5 at 293 K for Argon

TRFU

1692

K

Reference temperature for gas viscosity.

XLENGG (ISGG)

1693-1720

m

Length of gas segment.

AREASG (ISGG)

1721-1748

m^2

Area.

CVGMLT (M,ISGG)

1749-1804

Multiplicity factors at gas segment ends. M=1 at inlet, 2 at outlet. Inlet and outlet the same as for JCVG(M,ISGG).

DHSEGG (ISGG)

1805-1832

m

Hydraulic diameter.

ROUGHG (ISGG)

1833-1860

m

Surface roughness.

TAUGAS (ICV)

1861-1898

s

Cover-gas temperature time constant.

PUMP OPTIONS

IEMPMP

ILRPMP

Pump Option

Any

-2

User-specified normalized pump head vs. normalized flow.

-2

≥ 0

ALMR EM Pump.

-1

Any ≠ -2

Electromagnetic (EM) pump.

0

Any ≠ -2

Table look-up, user specified normalized pump head vs. time.

1

-1

Centrifugal pump option 1, user-specified normalized pump speed vs. time.

1

0

Centrifugal pump option 1, user-specified normalized motor torque vs. time.

1

1

Centrifugal pump option 1, locked rotor (pump speed = 0).

2

-1

Centrifugal pump option 2, ANL pump model, user-specified normalized pump speed vs. time.

2

0

Centrifugal pump option 2, ANL pump model, user-specified normalized motor torque vs. time.

2

1

Centrifugal pump option 2, ANL pump model, locked rotor (pump speed = 0).

3

Any ≠ -2

EBR-II pump model

Note: See IEMPMP and ILRPMP.

USER-SPECIFIED PUMP HEAD VS TIME

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = 0 \right)\]

NONE

1899-1910

Not used.

HEADR (IPMP)

1911-1922

Pa

Pump head at t = 0, computed by the code unless steady-state flow = 0.

NONE

1923-1982

Not used.

APMPHD (J,IPMP)

1983-2222

Table of relative pump head. Dimension (20, 12).

AMOTTK (J,IPMP)

2223-2462

s

Times for pump head table. Dimension (20, 12).

CENTRIFUGAL PUMP

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = 1 \right)\]

PMPINR (IPMP)

1899-1910

kg-m^2

Moment of inertia, pump and motor.

HEADR (IPMP)

1911-1922

Pa

Rated pump head.

PMPSPR (IPMP)

1923-1934

Rad/s

Rated pump speed.

PMPFLR (IPMP)

1935-1946

kg/s

Rated pump flow.

PMPEFR (IPMP)

1947-1958

Rated pump efficiency.

TRKLSC (IPMP)

1959-1970

Torque coefficient for shaft friction, windage.

EPSCAV (IPMP)

1971-1982

Cavitation coefficient = ANPSH/HEAD for cavitation, rated value.

APMPHD (IPMP)

1983-2222

Pump head coefficients, J = 1 to 10, and pump torque coefficients, J = 11 to 20.

AMOTTK (IPMP)

2223-2462

s

Motor torque table, J = 1 to 10, and times for motor torque table, J = 11 to 20.

HOMOLOGOUS PUMP MODEL

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = 2 \right)\]

PMPINR (IPMP)

1899-1910

kg-m^2

Moment of inertia, pump and motor.

HEADR (IPMP)

1911-1922

Pa

Rated pump head.

PMPSPR (IPMP)

1923-1934

Rad/s

Rated pump speed.

PMPFLR (IPMP)

1935-1946

kg/s

Rated pump flow.

PMPEFR (IPMP)

1947-1958

Rated pump efficiency.

TRKLSC (IPMP)

1959-1970

Torque coefficient for shaft friction, windage.

EPSCAV (IPMP)

1971-1982

Cavitation coefficient = ANPSH/HEAD for cavitation, rated value.

APMPHD (K, IPMP)

1983-2222

K

Comments

1-3

Torque loss coefficients A(K), low range for

APMPHD(10,IPMP) ≥ SB

Friction torque = A(1)+A(2)*SB+A(3)*SB2

SB = normalized pump speed.

4-6

Torque loss coefficients, middle range for

APMPHD(11,IPMP) ≥ SB > APMPHD(10,IPMP)

7-9

Torque loss coefficients, high range for

SB > APMPHD(11,IPMP)

10-11

Limits of torque loss ranges.

12

Locked rotor loss coefficient.

13

Transition WB, normalized flow for transition from turbulent to laminar pump head.

14-17

Not used.

18

Pump curve number (1-3).

19

WB for locked rotor.

20

SB for locked rotor.

ILRPMP(IPMP) is set to 1 if WB < APMPHD(19,IPMP) and SB < APMPHD(20,IPMP).

AMOTTK (K,IPMP)

2223-2462

Normalized motor torque table, K = 1 to 10, and times for motor torque table, K = 11 to 20. Note: See also IEMPMP, ILRPMP, PMPHD, and PMPTQ.

EBR-II PUMP MODEL

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = 3 \right)\]

APMPHD (J,IPMP)

1983-2222

Pump head coefficients. Same input format as for the homologous pump model.

AMOTTK

2223-2462

Table of normalized pump speed, j = 1 to 10, and times for pump speed, j = 11 to 20.

Note: For an initial steady-state run, the normalization of the speeds in the AMOTTK table does not matter; the code renormalizes the table so that the speeds are relative to the rated speed (PMPSPR). If AMOTTK is input for a restart, then it must be normalized to the rated speed.

ELECTROMAGNETIC PUMP

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = - 1 \right)\]
\[\mathrm{\text{Pump Head}} = \mathrm{\text{Stall Head}}\left( t \right) \times \left\lbrack 1 - \left( \frac{\mathrm{\text{Flow}}}{\mathrm{\text{Synchronous Flow}}} \right)^{B} \right\rbrack\]

NONE

1899-1910

Not used.

HEADR (IPMP)

1911-1922

Stall head at \(t = 0\), computed by the code if steady-state flow is not zero.

NONE

1923-1934

Not used.

PMPFLR (IPMP)

1935-1946

s/m

1/Synchronous velocity.

PMPEFR (IPMP)

1947-1958

Coefficient \(B\). Suggested value: 1.30.

NONE

1959-1982

Not used.

APMPHD (J,IPMP)

1983-2222

Table of normalized stall head.

AMOTTK (J,IPMP)

2223-2462

s

Times for APMPHD table.

ALMR EM PUMP

\[\left( \mathrm{\text{IEMPMP}}\left( \mathrm{\text{IPMP}} \right) = -2 \right)\]

EM Pump with motor-generator to extend the coastdown time, see formulation in Section 5.3.4.4.

PMPINR (IPMP)

1899-1910

kg-m^2

Moment of inertia, \(I\), in equation 5.3-127.

HEADR (IPMP)

1911-1922

Pa

Rated pump head, \(H_{\text{r}}\). See equation 5.3-117.

PMPSPR (IPMP)

1923-1934

Rad/s

Rated frequency, or equivalently, pump speed, \(f_{\text{r}}\). See equation 5.3-119.

PMPFLR (IPMP)

1935-1946

kg/s

Rated mass flow rate, \(w_{\text{r}}\). See equation 5.3-120.

PMPEFR (IPMP)

1947-1958

Rated pump efficiency, \(\varepsilon_{\text{fr}}\). See equation 5.3-122.

TRKLSC (IPMP)

1959-1982

Torque friction loss coefficient \(L_{\text{m}}\). See equation 5.3-130.

APMPHD (J,IPMP)

1983-2222

ALMR EM Pump model description.

J

Description

Units

1-5

Coefficient \(a_{\text{j}}\) in head curve given by equation 5.3-121. See defaults in Table 5.3.1, which are specific to the ALMR design.

Dimensionless

6

Friction loss coefficient \(L_{\text{f}}\) in equation 5.3-116.

Dimensionless

7

Time to cut-over to the motor-generator, i.e. trip time. If ILRPMP>0, then the time specified here is ignored and replaced with the value returned by the associated Function Block.

s

8

\(f_{0}\), frequency prior to cutting over to the motor-generator.

rad/s

9

\(V_{\text{r}}\), rated voltage. See equation 5.3-118.

V

10-12

Not used

N/A

13

\(V_{\text{fr}}\), cut-over voltage fraction. See equation 5.3-125.

Dimensionless

14-20

Not used

N/A

AMOTTK (J,IPMP)

2223-2462

ALMR EM Pump model description, continued.

J

Description

Units

1-7

Coefficient \(b_{\text{j}}\) in equation 5.3-123. See defaults in Table 5.3.1, which are specific to the ALMR design.

Dimensionless

8-16

Coefficient \(c_{\text{j-7}}\) in equation 5.3-124. See defaults in Table 5.3.1, which are specific to the ALMR design.

Dimensionless

NORMALIZED PUMP HEAD VS. NORMALIZED FLOW

\[\left( \mathrm{\text{ILRPMP}}\left( \mathrm{\text{IPMP}} \right) = - 2 \right)\]

NONE

1899-1982

Not used.

APMPHD (J,IPMP)

1983-2222

Table of normalized pump head.

AMOTTK (J,IPMP)

2223-2462

Normalized flow for the APMPHD table.

GRAVTY

2463

m/s^2

Acceleration of gravity. Code uses 9.80.

BTAPNA (ICV)

2464-2501

1/Pa

Coolant isothermal compressibility, (1/RHO) d RHO/dP, for the compressible volume. Suggested value: 2.13E-10 for sodium at 720 K.

BTATNA (ICV)

2502-2539

1/K

Coolant thermal expansion coefficient, (1/RHO) d RHO/dT, for the compressible volume. Suggested value: -2.8E-4 for sodium at 720 K.

RHONAR (ICV)

2540-2577

kg/m^3

Reference density of Na at TREFCV. Default: 844. Not currently used.

HWALL (ICV)

2578-2615

W/m^2-K

Wall-coolant heat-transfer coefficient for the compressible volume.

AWALL (ICV)

2616-2653

m^2

Wall surface area for the compressible volume.

CMWALL (ICV)

2654-2691

J/K

Mass x specific heat for the wall of the compressible volume.

VOLMIX

2692

Not currently used.

TAUUP

2693

Not currently used.

C1BY

2694

Coefficient in Lyon-Martinelli convective heat-transfer correlation for bypass channel. First coefficient set.

(See C1, C1BY2, C1BY3, C1BY4, IHTBYB, and IHTBYD).

C2BY

2695

See C1BY.

C3BY

2696

See C1BY.

XKALBY (IBYP)

2697-2704

W/m-K

Thermal conductivity of bypass wall A, lower part. 1 ≤ IBYP ≤ NBYP.

XKAUBY (IBYP)

2705-2712

W/m-K

Thermal conductivity of bypass wall A, upper part.

XKBLBY (IBYP)

2713-2720

W/m-K

Thermal conductivity of bypass wall B, lower part.

XKBUBY (IBYP)

2721-2728

W/m-K

Thermal conductivity of bypass wall B, upper part.

XKDBY (IBYP)

2729-2736

W/m-K

Thermal conductivity of bypass wall D.

DABY (IBYP)

2737-2744

m

Thickness of bypass wall A.

DBBY (IBYP)

2745-2752

m

Thickness of bypass wall B.

DDBY (IBYP)

2753-2760

m

Thickness of bypass wall D.

RCALBY (IBYP)

2761-2768

J/m^3-K

Density * specific heat of bypass wall A, lower part.

RCAUBY (IBYP)

2769-2776

J/m^3-K

Density * specific heat of bypass wall A, upper part.

RCBLBY (IBYP)

2777-2784

J/m^3-K

Density * specific heat of bypass wall B, lower part.

RCBUBY (IBYP)

2785-2792

J/m^3-K

Density * specific heat of bypass wall B, upper part.

RCDBY (IBYP)

2793-2800

J/m^3-K

Density * specific heat of bypass wall D.

PSHPBY (J,IBYP)

2801-2856

Power shape by nodes for each bypass channel. Dimension (7,8). Code normalizes distribution. For the number of nodes, see NTNODE.

GAMNBY (IREG,IBYP)

2857-2880

Fraction of total reactor power by region for each bypass channel. If there are no nodes in region 2, then set GAMNBY(2,IBYP) to 0. Dimension (3,8). Note: See FRPR. Sum over all of the three regions of all the NBYP bypass channels of the array elements of GAMNBY = 1 - FRPR.

GAMDBY (IREG,IBYP)

2881-2904

Fraction of decay power by region for each bypass channel. Set to 0. The code adds GAMNBY to GAMDBY for the total power fraction. Dimension (3,8).

PRFRA1 (IBYP)

2905-2912

The fraction of the reactor power distributed in reflector A in region 1 of the bypass channel.

PRFRA2 (IBYP)

2913-2920

The fraction of the reactor power distributed in reflector A in region 2 of the bypass channel.

PERABY (IBYP)

2921-2928

m

Perimeter of wall B in bypass channel.

PERDBY (IBYP)

2929-2936

m

Perimeter of wall D in bypass channel.

DTMPTB (K,ITAB)

2937-3104

Table of valve pressure drop coefficient (See ITABVV ).

Table of normalized temperature drop for an IHX (See IHXCLC) or steam generator (See ISGCLC).

Table of primary side outlet temperature for an IHX (See IHXCLC) or steam generator (See ISGCLC). DTMPTB(1,ITAB)>1.0

Table of normalized heat rejection for an IHX (See IHXCLC) or steam generator (See ISGCLC). DTMPTB(1,ITAB)=1.0. VSIHX1, VSIHX2, and DTSIHX must be nonzero.

Dimension(14,12).

ZCENTR (K,ITAB)

3105-3272

m

Height of thermal center for TABLE(ITAB) for an IHX or steam generator.

TMPMTB (K,ITAB)

3273-3440

s

Times for DTMPTB and ZCENTR.

DTEVPF (IIHX)

3441-3444

Fraction of total steam generator Na temperature drop in evaporator for the intermediate loop connected to IHX(IIHX). Will be reset to 0.7 if equal to 0. or 1. Suggested value: 0.9999 for table lookup option.

PRSIHX (IIHX)

3445-3448

Pa

Steady-state intermediate side IHX inlet pressure.

PRSDRC (IDRC)

3449-3452

Pa

Steady-state intermediate side DRACS inlet pressure.

Not implemented. See instead ISGLNK and ICVNAK and use PRSIHX.

PINMIN

3453

Pa

Minimum subassembly inlet pressure. Default: 10000.

DMP4I1

3454

Not currently used.

DZSHPX (IDZIHX)

3455-3515

m

Fractional axial node heights in IHX.

PERSPX (IIHX)

3516-3519

m

Perimeter between shell and shell side coolant in IHX.

PERSPD (IDRX)

3520-3523

m

Perimeter between shell and shell side coolant in DRACS

Not implemented. See instead ISGLNK and ICVNAK and use PERSPX.

PERPTX (IIHX)

3524-3527

m

Perimeter between shell side coolant and tube in IHX.

PERPTD (IDRX)

3528-3531

m

Perimeter between shell side coolant and tube in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use PERPTX.

PERTIX (IIHX)

3532-3535

m

Perimeter between tube and tube side coolant in IHX.

PERTID (IDRX)

3536-3539

m

Perimeter between tube and tube side coolant in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use PERTIX.

DSHIHX (IIHX)

3540-3543

m

Shell thickness in IHX.

DSHDRC (IDRX)

3544-3547

m

Shell thickness in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use DSHIHX.

DTUIHX (IIHX)

3548-3551

m

Tube thickness in IHX.

DTUDRC (IDRX)

3552-3555

m

Tube thickness in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use DTUIHX.

RCSHHX (IIHX)

3556-3559

J/m^3-K

Density * specific heat of shell in IHX.

RCSHDR (IDRX)

3560-3563

J/m^3-K

Density * specific heat of shell in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use RCSHHX.

RCTUHX (IIHX)

3564-3567

J/m^3-K

Density * specific heat of tube in IHX.

RCTUDR (IDRX)

3568-3571

J/m^3-K

Density * specific heat of tube in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use RCTUHX.

XKSHHX (IIHX)

3572-3575

W/m-K

Thermal conductance of shell in IHX.

XKSHDR (IDRX)

3576-3579

W/m-K

Thermal conductance of shell in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use XKSHHX.

XKTUHX (IIHX)

3580-3583

W/m-K

Thermal conductance of tube in IHX.

XKTUDR (IDRX)

3584-3587

W/m-K

Thermal conductance of tube in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use XKTUHX.

HFPIHX (IIHX)

3588-3591

W/m^2-K

Fouling heat-transfer coefficient for shell side flow in IHX.

HFPDRC (IDRX)

3592-3595

W/m^2-K

Fouling heat-transfer coefficient for shell side flow in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use HFPIHX.

HFIIHX (IIHX)

3596-3599

W/m^2-K

Fouling heat-transfer coefficient for tube side flow in IHX.

HFIDRC (IDRX)

3600-3603

W/m^2-K

Fouling heat-transfer coefficient for tube side flow in DRACS.

Not implemented. See instead ISGLNK and ICVNAK and use HFIIHX.

SLANTX (IIHX)

3604-3607

Slant-height factor for IHX, tubeside.

SLANTD (IDRX)

3608-3611

Slant-height factor for DRACS, tubeside.

Not implemented. See instead ISGLNK and ICVNAK and use SLANTX.

VOLSG0 (ICV)

3612-3649

m^3

Initial gas volume. Used only for ITYPCV(ICV) = 6,7,8,9,10.

C1PIPE

3650

Conductance coefficient for pipe.

Recommended value: 0.025.

C2PIPE

3651

Conductance coefficient for pipe.

Recommended value: 0.8.

C3PIPE

3652

Conductance coefficient for pipe.

Recommended value: 4.8.

C1IHX

3653

Conductance coefficient for HX, shell side. Also for tube side if both are same; if tube side different, enter tube side value in C1IHXT (heat exchanger).

Recommended value: 0.025.

C2IHX

3654

Conductance coefficient for HX, shell side. Also for tube side if both are same; if tube side different, enter tube side value in C2IHXT (heat exchanger).

Recommended value: 0.8.

C3IHX

3655

Conductance coefficient for HX, shell side. Also for tube side if both are same; if tube side different, enter tube side value in C3IHXT (heat exchanger).

Recommended value: 4.8.

C4IHX

3656

Conductance coefficient for HX, shell side. Also for tube side if both are same; if tube side different, enter tube side value in C4IHXT (heat exchanger).

Recommended value: 0.0.

PMPHD

3657-3719

Pump head coefficients for range J for pump type (specific speed) K. Used only if IEMPMP=2. Dimensions (7,3,3).

PMPTQ

3720-3800

Pump torque coefficients for range J for pump type K. Used only if IEMPMP=2.

Dimensions (9,3,3).

AIR DUMP HEAT EXCHANGER

RITB (IDHX)

3801-3804

m

Heat exchanger tube inner radius.

ROTB (IDHX)

3805-3808

m

Tube outer radius.

XKTB (IDHX)

3809-3812

W/m-K

Tube thermal conductivity.

HOTB (IDHX)

3813-3816

W/m^2-K

Tube-to-air heat transfer coefficient.

HITB (IDHX)

3817-3820

W/m^2-K

Tube-to-NaK or tube-to-Na heat transfer coefficient.

AHT (IDHX)

3821-3824

m^2

Air side heat transfer area.

SRLEN (IDHX)

3825-3828

m

Stack riser length.

XKHXLS (IDHX)

3829-3832

Loss coefficient, air side of heat exchanger.

XKRLS (IDHX)

3833-3836

Riser loss coefficient.

XKSOLS (IDHX)

3837-3840

Stack outlet loss coefficient.

AHX (IDHX)

3841-3844

m^2

Air flow area at heat exchanger.

AR (IDHX)

3845-3848

m^2

Riser cross sectional area.

ASI (IDHX)

3849-3852

m^2

Stack inlet cross sectional area.

XKSILS (K,IDHX)

3853-3892

Table of stack inlet loss coefficient (IFCDHX=0) or air flow rate (IFCDHX=1) vs time.

XKSITM (K,IDHX)

3893-3932

s

Times for XKSILS table.

AIRTMP

3933

K

Air temperature.

FIRST STEAM GENERATOR

HFW

3934

J/kg

Inlet feedwater enthalpy.

WEVI

3935

kg/s

Inlet evaporator mass flow rate estimate (readjusted during steady-state calculations to yield correct sodium-side temperature drop).

PW

3936

Pa

Evaporator waterside average pressure.

TNAX

3937

Not currently used.

XEVO

3938

Exit steam quality from the evaporator. Should be between 0 and 1 for IEVAP = 1 or 3.

GEOMETRIC CONSTANTS

EL

3939

m

Evaporator active length.

DEW

3940

m

Water hydraulic diameter per tube.

DNA

3941

m

Tube outer diameter.

DENA

3942

m

Sodium hydraulic diameter per tube.

ANA

3943

m^2

Sodium flow area per tube.

POD

3944

Tube pitch to diameter ratio.

PINSW

3945

Number of tubes per unit.

EVAPORATOR HEAT TRANSFER NORMALIZATION

PWO

3946

Pa

Evaporator average pressure.

TMO

3947

K

Evaporator average metal temperature.

TNAO

3948

K

Evaporator average sodium temperature.

HSCO

3949

J/kg

H2O: Average subcooled region enthalpy (estimated).

HFBO

3950

J/kg

H2O: Average post-DNB region enthalpy (estimated).

HSHO

3951

J/kg

H2O: Average superheat region enthalpy (estimated).

GWO (2)

3952-3953

kg/m^2-s

H2O: Average 2-phase mass velocity in the evaporator and superheater, respectively.

GEOMETRIC CONSTANTS

QFACT (2)

3954-3955

Heat transfer area multiplier for the evaporator and superheater respectively. For IEVAP = 1 or 3, QFACT(1) is internally adjusted such that the evaporator length and output steam quality correspond to their input values.

ELS

3956

m

Superheater length.

INITIAL ENTHALPY

HWSHO

3957

J/kg

Initial estimate of the superheat water exit enthalpy (internally changed during steady-state calculations).

INITIAL PRESSURE

PD

3958

Pa

Initial drum pressure.

PHPTI

3959

Pa

Initial high pressure turbine inlet pressure.

GEOMETRIC CONSTANTS

VOLD

3960

m^3

Drum volume.

ELDRUM

3961

m

Drum midpoint elevation measured from the evaporator inlet.

RECIRCULATION MOMENTUM

DPFCLD

3962

Pa

Rated cold leg (drum to active inlet of evaporator) friction pressure loss.

CUTOFF

3963

Cutoff head fraction for recirculation pump rated head.

SLA

3964

1/m

Recirculation loop characteristic length to flow area ratio.

DPFHOT

3965

Pa

Rated hot leg (evaporator to drum) friction pressure loss.

REDPTO

3966

Rated evaporator water/steam Reynolds number.

FDPTO

3967

Evaporator friction pressure drop multiplier.

FWTIME (6)

3968-3973

s

Array of time values corresponding to feedwater normalized flow rate profile (FWPROF).

FWPROF (6)

3974-3979

Feedwater flow at times given in FWTIME. Normalized to steady-state flow = 1.0. This option selected by IFWC = 2.

PHTIME (6)

3980-3985

s

Array of time values corresponding to feedwater pump head normalized profile (PMPROF).

PHPROF (6)

3986-3991

Pump head profile at times given in PHTIME. Normalized to feedwater pump ΔP at steady-state. This option is turned on by setting PHPROF(1) non-zero.

DUM

3992-3993

Not currently used.

END OF FIRST STEAM GENERATOR INPUT SECOND STEAM GENERATOR

HFW

3994

J/kg

Inlet feedwater enthalpy.

WEVI

3995

kg/s

Inlet evaporator mass flow rate estimate (readjusted during steady-state calculations to yield correct sodium-side temperature drop).

PW

3996

Pa

Evaporator waterside average pressure.

TNAX

3997

Not currently used.

XEVO

3998

Exit steam quality from the evaporator. Should be between 0 and 1 for IEVAP = 1 or 3.

GEOMETRIC CONSTANTS

EL

3999

m

Evaporator active length.

DEW

4000

m

Water hydraulic diameter per tube.

DNA

4001

m

Tube outer diameter.

DENA

4002

m

Sodium hydraulic diameter per tube.

ANA

4003

m^2

Sodium flow area per tube.

POD

4004

Tube pitch to diameter ratio.

PINSW

4005

Number of tubes per unit.

EVAPORATOR HEAT TRANSFER NORMALIZATION

PWO

4006

Pa

Evaporator average pressure.

TMO

4007

K

Evaporator average metal temperature.

TNAO

4008

K

Evaporator average sodium temperature.

HSCO

4009

J/kg

H2O: Average subcooled region enthalpy (estimated).

HFBO

4010

J/kg

H2O: Average post-DNB region enthalpy (estimated).

HSHO

4011

J/kg

H2O: Average superheat region enthalpy (estimated).

GWO (2)

4012-4013

kg/m^2-s

H2O: Average 2-phase mass velocity in the evaporator and superheater, respectively.

GEOMETRIC CONSTANTS

QFACT (2)

4014-4015

Heat transfer area multiplier for the evaporator and superheater respectively. For IEVAP = 1 or 3, QFACT(1) is internally adjusted such that the evaporator length and output steam quality correspond to their input values.

ELS

4016

m

Superheater length.

INITIAL ENTHALPY

HWSHO

4017

J/kg

Initial estimate of the superheat water exit enthalpy (internally changed during steady-state calculations).

INITIAL PRESSURE

PD

4018

Pa

Initial drum pressure.

PHPTI

4019

Pa

Initial high pressure turbine inlet pressure.

GEOMETRIC CONSTANTS

VOLD

4020

m^3

Drum volume.

ELDRUM

4021

m

Drum midpoint elevation measured from the evaporator inlet.

RECIRCULATION MOMENTUM

DPFCLD

4022

Pa

Rated cold leg (drum to active inlet of evaporator) friction pressure loss.

CUTOFF

4023

Cutoff head fraction for recirculation pump rated head.

SLA

4024

1/m

Recirculation loop characteristic length to flow area ratio.

DPFHOT

4025

Pa

Rated hot leg (evaporator to drum) friction pressure loss.

REDPTO

4026

Rated evaporator water/steam Reynolds number.

FDPTO

4027

Evaporator friction pressure drop multiplier.

FWTIME (6)

4028-4033

s

Array of time values corresponding to feedwater normalized flow rate profile (FWPROF).

FWPROF (6)

4034-4039

Feedwater flow at times given in FWTIME. Normalized to steady-state flow = 1.0. This option selected by IFWC = 2.

PHTIME (6)

4040-4045

s

Array of time values corresponding to feedwater pump head normalized profile (PMPROF).

PHPROF (6)

4046-4051

Pump head profile at times given in PHTIME. Normalized to feedwater pump ΔP at steady-state. This option is turned on by setting PHPROF(1) non-zero.

DUM

4052-4053

Not currently used.

END OF SECOND STEAM GENERATOR INPUT THIRD STEAM GENERATOR

HFW

4054

J/kg

Inlet feedwater enthalpy.

WEVI

4055

kg/s

Inlet evaporator mass flow rate estimate (readjusted during steady-state calculations to yield correct sodium-side temperature drop).

PW

4056

Pa

Evaporator waterside average pressure.

TNAX

4057

Not currently used.

XEVO

4058

Exit steam quality from the evaporator. Should be between 0 and 1 for IEVAP = 1 or 3.

GEOMETRIC CONSTANTS

EL

4059

m

Evaporator active length.

DEW

4060

m

Water hydraulic diameter per tube.

DNA

4061

m

Tube outer diameter.

DENA

4062

m

Sodium hydraulic diameter per tube.

ANA

4063

m^2

Sodium flow area per tube.

POD

4064

Tube pitch to diameter ratio.

PINSW

4065

Number of tubes per unit.

EVAPORATOR HEAT TRANSFER NORMALIZATION

PWO

4066

Pa

Evaporator average pressure.

TMO

4067

K

Evaporator average metal temperature.

TNAO

4068

K

Evaporator average sodium temperature.

HSCO

4069

J/kg

H2O: Average subcooled region enthalpy (estimated).

HFBO

4070

J/kg

H2O: Average post-DNB region enthalpy (estimated).

HSHO

4071

J/kg

H2O: Average superheat region enthalpy (estimated).

GWO (2)

4072-4073

kg/m^2-s

H2O: Average 2-phase mass velocity in the evaporator and superheater, respectively.

GEOMETRIC CONSTANTS

QFACT (2)

4074-4075

Heat transfer area multiplier for the evaporator and superheater respectively. For IEVAP = 1 or 3, QFACT(1) is internally adjusted such that the evaporator length and output steam quality correspond to their input values.

ELS

4076

m

Superheater length.

INITIAL ENTHALPY

HWSHO

4077

J/kg

Initial estimate of the superheat water exit enthalpy (internally changed during steady-state calculations).

INITIAL PRESSURE

PD

4078

Pa

Initial drum pressure.

PHPTI

4079

Pa

Initial high pressure turbine inlet pressure.

GEOMETRIC CONSTANTS

VOLD

4080

m^3

Drum volume.

ELDRUM

4081

m

Drum midpoint elevation measured from the evaporator inlet.

RECIRCULATION MOMENTUM

DPFCLD

4082

Pa

Rated cold leg (drum to active inlet of evaporator) friction pressure loss.

CUTOFF

4083

Cutoff head fraction for recirculation pump rated head.

SLA

4084

1/m

Recirculation loop characteristic length to flow area ratio.

DPFHOT

4085

Pa

Rated hot leg (evaporator to drum) friction pressure loss.

REDPTO

4086

Rated evaporator water/steam Reynolds number.

FDPTO

4087

Evaporator friction pressure drop multiplier.

FWTIME (6)

4088-4093

s

Array of time values corresponding to feedwater normalized flow rate profile (FWPROF).

FWPROF (6)

4094-4099

Feedwater flow at times given in FWTIME. Normalized to steady-state flow = 1.0. This option selected by IFWC = 2.

PHTIME (6)

4100-4105

s

Array of time values corresponding to feedwater pump head normalized profile (PMPROF).

PHPROF (6)

4106-4111

Pump head profile at times given in PHTIME. Normalized to feedwater pump ΔP at steady-state. This option is turned on by setting PHPROF(1) non-zero.

DUM

4112-4113

Not currently used.

END OF THIRD STEAM GENERATOR INPUT FOURTH STEAM GENERATOR

HFW

4114

J/kg

Inlet feedwater enthalpy.

WEVI

4115

kg/s

Inlet evaporator mass flow rate estimate (readjusted during steady-state calculations to yield correct sodium-side temperature drop).

PW

4116

Pa

Evaporator waterside average pressure.

TNAX

4117

Not currently used.

XEVO

4118

Exit steam quality from the evaporator. Should be between 0 and 1 for IEVAP = 1 or 3.

GEOMETRIC CONSTANTS

EL

4119

m

Evaporator active length.

DEW

4120

m

Water hydraulic diameter per tube.

DNA

4121

m

Tube outer diameter.

DENA

4122

m

Sodium hydraulic diameter per tube.

ANA

4123

m^2

Sodium flow area per tube.

POD

4124

Tube pitch to diameter ratio.

PINSW

4125

Number of tubes per unit.

EVAPORATOR HEAT TRANSFER NORMALIZATION

PWO

4126

Pa

Evaporator average pressure.

TMO

4127

K

Evaporator average metal temperature.

TNAO

4128

K

Evaporator average sodium temperature.

HSCO

4129

J/kg

H2O: Average subcooled region enthalpy (estimated).

HFBO

4130

J/kg

H2O: Average post-DNB region enthalpy (estimated).

HSHO

4131

J/kg

H2O: Average superheat region enthalpy (estimated).

GWO (2)

4132-4133

kg/m^2-s

H2O: Average 2-phase mass velocity in the evaporator and superheater, respectively.

GEOMETRIC CONSTANTS

QFACT (2)

4134-4135

Heat transfer area multiplier for the evaporator and superheater respectively. For IEVAP = 1 or 3, QFACT(1) is internally adjusted such that the evaporator length and output steam quality correspond to their input values.

ELS

4136

m

Superheater length.

INITIAL ENTHALPY

HWSHO

4137

J/kg

Initial estimate of the superheat water exit enthalpy (internally changed during steady-state calculations).

INITIAL PRESSURE

PD

4138

Pa

Initial drum pressure.

PHPTI

4139

Pa

Initial high pressure turbine inlet pressure.

GEOMETRIC CONSTANTS

VOLD

4140

m^3

Drum volume.

ELDRUM

4141

m

Drum midpoint elevation measured from the evaporator inlet.

RECIRCULATION MOMENTUM

DPFCLD

4142

Pa

Rated cold leg (drum to active inlet of evaporator) friction pressure loss.

CUTOFF

4143

Cutoff head fraction for recirculation pump rated head.

SLA

4144

1/m

Recirculation loop characteristic length to flow area ratio.

DPFHOT

4145

Pa

Rated hot leg (evaporator to drum) friction pressure loss.

REDPTO

4146

Rated evaporator water/steam Reynolds number.

FDPTO

4147

Evaporator friction pressure drop multiplier.

FWTIME (6)

4148-4153

s

Array of time values corresponding to feedwater normalized flow rate profile (FWPROF).

FWPROF (6)

4154-4159

Feedwater flow at times given in FWTIME. Normalized to steady-state flow = 1.0. This option selected by IFWC = 2.

PHTIME (6)

4160-4165

s

Array of time values corresponding to feedwater pump head normalized profile (PMPROF).

PHPROF (6)

4166-4171

Pump head profile at times given in PHTIME. Normalized to feedwater pump ΔP at steady-state. This option is turned on by setting PHPROF(1) non-zero.

DUM

4172-4173

Not currently used.

END OF FOURTH STEAM GENERATOR INPUT

VSLEXP (K)

4174-4183

m/K

Length times thermal expansion coefficient for the K element or compressible volume. Used to represent the vessel wall for the control rod drive thermal expansion feedback calculation.

COMPONENT-TO-COMPONENT HEAT TRANSFER

HABYBY (K,IBYP)

4184-4215

W/m-K

Heat transfer coefficient x area per unit height for bypass channel-bypass channel heat transfer. Dimensions (4,4). See IBYBY.

HAELHT (K)

4216-4245

W/m-K

Heat transfer coefficient x area per unit length for heat transfer from wall of liquid element IELHT(K) to liquid in compressible volume IELHT2(K). For heat transfer from compressible volume to compressible volume, HAELHT is h x area.

RVACS

XLRVC (IRVC)

4246-4251

m

Length of RVACS section. Used only if section K is a compressible volume.

PERVAC (IRVC)

4252-4257

m

RV perimeter.

TABLE RVACS

RVHTAB (K)

4258-4269

Table of h vs T.

RVHTMP (K)

4270-4281

T for RVHTAB table.

DETAILED RVACS

EPSRV (IRVC)

4258-4263

Emissivity of reactor vessel.

EPSGV (IRVC)

4264-4269

Emissivity of guard vessel inner surface.

PERGV (IRVC)

4270-4275

Perimeter, GV-air.

PERFS (IRVC)

4276-4281

Perimeter, finned shell inner surface - air.

TIME STEP CONTROLS

EPSF

4282

Maximum fractional change in a liquid segment flow rate per PRIMAR time step.

EPSFC

4283

Maximum fractional change in core inlet flow rate per PRIMAR time step.

STEADY-STATE INITIALIZATION

DTIHX (IIHX)

4284-4287

Steady state temperature drop across IHX (primary side). Used only if ISSIHX > 0.

DHPMP (IPMP)

4288-4299

Steady state pump head. Used only if ISSPMP > 0.

BYPASS CHANNEL HEAT TRANSFER CORRELATIONS

C1BY2

4300

Second coefficient set for bypass channel heat transfer coefficient.

C2BY2

4301

See C1BY2.

C3BY2

4302

See C1BY2.

C1BY3

4303

Third coefficient set for bypass channel heat transfer coefficient.

C2BY3

4304

See C1BY3.

C3BY3

4305

See C1BY3.

C1BY4

4306

Fourth coefficient set for bypass channel heat transfer coefficient. See IHTBYB, IHTBYD, and C1BY.

C2BY4

4307

See C1BY4.

C3BY4

4308

See C1BY4.

IHX HEAT TRANSFER CORRELATIONS

See C1IHX, C2IHX, and C3IHX.

C1IHXT

4309

Heat transfer correlation coefficients for the tube side of an HX.

C2IHXT

4310

Heat transfer correlation coefficients for the tube side of an HX.

C3IHXT

4311

Heat transfer correlation coefficients for the tube side of an HX.

C4IHXT

4312

Heat transfer correlation coefficients for the tube side of an HX.

ANNULAR ELEMENTS

WALMC2 (IAEL)

4313-4342

J/m-K

Second wall mass x heat capacity / length for annular element IAEL.

WALLH2 (IAEL)

4343-4372

W/m^2-K

Second wall heat transfer coefficient.

PERWL2 (IAEL)

4373-4402

m

Second wall perimeter.

RVACS, CONTINUED

TAIRVC

4403

K

Air inlet temperature. When using the detailed RVACS model, the air property correlations are valid between 255.4 K and 1088.7 K.

ZBRVC

4404

m

Z at bottom of RVACS.

THE FOLLOWING RVACS INPUT IS ONLY FOR THE DETAILED MODEL

C1RV

4405

Heat transfer correlation coefficient for air in the RVACS.

C2RV

4406

Heat transfer correlation coefficient for air in the RVACS.

C3RV

4407

Heat transfer correlation coefficient for air in the RVACS. See C1, C2, C3.

XLAIRV

4408

m

Length of air inlet section.

DHAIRV

4409

m

Dh, air inlet section.

AARIRV

4410

m^2

Area, air inlet section.

XLAORV

4411

m

Length of air outlet (stack).

DHAORV

4412

m

Dh, stack.

AARORV

4413

m^2

Area, stack

AIRARV (IRVC)

4414-4419

m^2

Air flow area, GV-FS.

AIRAR2 (IRVC)

4420-4425

m^2

Air flow area, FS - concrete wall.

PERGVO (IRVC)

4426-4431

m

Perimeter for radiation from guard vessel outer surface to outer shell inner surface.

PERFSI (IRVC)

4432-4437

Not currently used.

PERFSO (IRVC)

4438-4443

m

Perimeter for radiation from finned shell outer surface to outer wall, also finned shell outer surface to air.

HGASRV (IRVC)

4444-4449

W/m^2-K

Gas h, RV - GV.

SLRVC (IRVC)

4450-4455

Slope:

= 0, Vertical.
= 1, Horizontal.

HFSRV (IRVC)

4456-4461

W/m^2-K

Heat transfer coefficient across finned shell.

HCONRV (IRVC)

4462-4467

W/m^2-K

Heat transfer coefficient between concrete nodes.

COMPONENT - COMPONENT HEAT TRANSFER

CPCPMP (K)

4468-4497

Multiplicity for component - component heat transfer, default = 1.0.

RVACS

GVMC (IRVC)

4498-4503

J/m-K

Mass x specific heat / length, guard vessel.

FSMCI (IRVC)

4504-4509

J/m-K

MC/L, finned shell inner node.

FSMCO (IRVC)

4510-4515

J/m-K

MC/L, FS outer node.

CRMCI (IRVC)

4516-4521

J/m-K

MC/L, concrete inner node.

CRMCO (IRVC)

4522-4527

J/m-K

MC/L, concrete outer node.

TW6RV (IRVC)

4528-4533

K

Temperature of outer wall node.

EPSFS

4534

Emissivity, finned shell outer surface.

SIGSTB

4535

W/m^2-K

Stefan-Boltzmann constant. Suggested value: 5.672E-8.

RW5RV

4536

m^2-K/W

Thermal resistance between surface of outer wall and inner node (node 5).

REYTRV

4537

Reynolds number for transition from laminar to turbulent in air. Overwritten by the code. See Eq. (5.4-112).

AFRTRV

4538

Turbulent friction factor = AFRTRV*Re**BFRTRV.

AFRLRV

4539

Laminar friction factor = AFRLRV/Re.

ORFIN

4540

Inlet orifice coefficient.

XLUNRV

4541

m

Length of upper node between liquid level and top of vessel.

BFRTRV

4542

Turbulent friction factor parameter, see AFRTRV.

UNGVMC

4543

J/m-K

MC/L for GV in upper node.

UNFSMC

4544

J/m-K

MC/L for FS inner node in upper node.

AIRAUN

4545

m^2

Air flow area, upper node.

EPSOW

4546

Emissivity, outer wall.

EPSGVO (IRVC)

4547-4552

Emissivity, guard vessel outer surface.

EPSFSI (IRVC)

4553-4558

Emissivity, finned shell inner surface.

CHECK VALVE TABLES

CKVORF (K,ICKV)

4559-4618

Check valve coefficient table. Dimensions: 10,6.

CKVFLO (K,ICKV)

4619-4678

Check valve normalized flow. Dimension: 10,6.

DEGREE OF IMPLICITNESS

THT2CV

4679

Minimum degree of implicitness for a compressible volume for liquid flow rate calculations.

Suggested values: 0.5 for rapid transients, 0.75 for slow transients

PUMP CAVITATION

CPC0

4680

Pump cavitation coefficients required net positive suction head =

S*S(CPC0+ CPC1*Z+CPC2*Z2+CPC3*Z3+CPC4*Z4).

Z = W/S

W = normalized flow

S = normalized pump speed

Typical values for FFTF:

CPC0 = 457,488
CPC1 = -2,161,072
CPC2 = 4,266,337
CPC3 = -3,636,676
CPC4 = 1,141,003

CPC1

4681

See CPC0.

CPC2

4682

See CPC0.

CPC3

4683

See CPC0.

CPC4

4684

See CPC0.

MULTIPLE INLET/OUTLET PLENA

TPLCV (ICV)

4685-4722

K

Temperature of volume ICV. Entered only for inlet plena to core or bypass channels. Not required for IFMIOP = 0.

PPLCV (ICV)

4723-4760

Pa

Pressure of volume ICV. Entered only for outlet plena to core or bypass channels. Not required for IFMIOP = 0.

ZPLENC (ICV)

4761-4798

m

Reference elevation for volume ICV. Entered only for inlet and outlet plena for core and bypass channels. (ZPLENL and ZPLENU are set from ZPLENC in the channel subroutines). Not required for IFMIOP = 0.

ELEMENT/WALL THERMAL ADJUSTMENT

WALTHK (IELL)

4799-4938

m

Element wall thickness, used only if ITHPEN > 0.

THKWAL (ICV)

4939-4976

m

Compressible volume wall thickness, used only if ITHPEN > 0.

TAUPEN

4977

s

Time constant for thermal penetration depth adjustments to wall thermal treatments, used only if ITHPEN > 0.

WALTH2 (IAEL)

4978-5007

m

Annular element second wall thickness, used only if ITHPEN > 0.

STRATIFIED COMPRESSIBLE VOLUME

RCORE

5008

m

Core radius for use in the Richardson number.

HCSTWL (IW)

5009-5017

W/m^2-K

Coolant heat transfer coefficient at the inner surface of the wall section.

HCSTW2 (IW)

5018-5026

W/m^2-K

Coolant heat transfer coefficient at the outer surface of the wall section.

ASTWL (IW)

5027-5035

m^2

Area of the wall section.

HINVWL (I,IW)

5036-5107

m^2-K/W

Thickness/thermal conductivity of node I in the wall section. I = 1 - 8.

XMCSTW (I,IW)

5108-5179

J/K

Mass x heat capacity of node I in the wall.

ZINST (ICVST)

5180-5182

m

Z of inlet, used only for a vertical wall. Otherwise ZOUTEL(IELL) is used.

VOLBLI (ICVST)

5183-5185

m^3

Volume below the inlet, not used if there is a cover gas in the CV. In this case, the information is obtained from other input for the CV.

EPSTST (ICVST)

5186-5188

K

Minimum temperature difference for switching stages.

XLENTR (ICVST)

5189-5191

m

Entrainment length. A hot plume with a flow rate WH, rising through a cool layer of thickness DZ, will entrain cool liquid at a rate (DZ/XLENTR) * WH.

PARAMETRIC TWO-REGION IHX MODEL

DTSIHX (IIHX)

5192-5195

K

Initial temperature difference between regions in parametric two-region IHX model for IHXCLC(IIHX) < 0 and DTMPTB(1) = 1.0.

VSIHX1 (IIHX)

5196-5199

m^3

First region volume in parametric two-region IHX model for IHXCLC(IIHX) < 0 and DTMPTB(1) = 1.0.

VSIHX2 (IIHX)

5200-5203

m^3

Second region volume in parametric two-region IHX model for IHXCLC(IIHX) < 0 and DTMPTB(1) = 1.0.

THICK-WALLED PIPES

TPWMC (L,K)

5204-5243

J/m-K

Mass*heat capacity/length for wall node L+1 of thick-walled pipe K. Dimensions (4,10). Note: Use WALLMC(IELL) for node 1.

TPWH (L,K)

5244-5283

W/m^2-K

Thermal conductivity/node thickness for node L+1 of thick walled pipe K. Dimensions (4,10). Note: Use WALLH(IELL) for node 1 for h from the mid-point of the first wall node to the wall surface.

STEADY-STATE INITIALIZATION

TCVSSI (II)

5284-5293

K

Steady-state coolant temperature in compressible volume ICVSSI(II).

PCVSSI (II)

5294-5303

Pa

Steady-state liquid pressure in compressible volume ICVSSI(II).

Detailed Air Dump Heat Exchanger Model

IADHX(IDHX) > 0

Not currently used.

EFFIN (IDHX)

5304-5307

m

Fin height. Not currently used

FINTHK (IDHX)

5308-5311

m

Fin thickness. Not currently used.

SPFIN (IDHX)

5312-5315

m

Center-to-center spacing between fins. Not currently used.

XLTUBE (IDHX)

5316-5319

m

Tube spacing parallel to flow. Not currently used.

XTTUBE (IDHX)

5320-5323

m

Tube spacing perpendicular to the flow. Not currently used.

DMP4IN

5324-5500

Not currently used.