2.8.2.4. Block 6 — IINBOP — Balance-of-Plant Integer Input

Note

The first-encountered IINBOP is saved and may not be redefined by subsequent data. Within the block, the data must be presented as defined in ANL/RAS 89/6. This block must precede Block 15, FINBOP.

See ANL/RAS 89/6, Appendix B.

The input format for each record in Block 6 is:

(2I3,11I6)

The first entry on a line identifies the type of geometric components for which data are being entered. The categories of components are numbered as follows:

Category	Description
1	compressible volume
2	segment
3	element
4	steam generator
5	waterside pump
6	volume boundary condition
7	not currently used
8	supersegment
9	flags to invoke options
10	standard valve
11	balance-of-plant legs
12	check valve
13	selection of parameters for printing
14	relief valve.

One point about these categories needs clarification. There is a category for general elements (category 3), and there are also categories for specific types of elements (pumps (5), standard valves (10), and check valves(12)). The data which fall under the general elements category must be entered for all elements. In addition, some element types require data unique to that type of element; these are entered under the appropriate element category. For example, the length of an element must be entered for all elements and so appears in the general elements category, whereas pump motor torque must be entered only for pumps and so appears in the pump elements category. Therefore, some information about a pump is entered in the general elements category and the rest in the pump elements category.

The second entry is the continuation card number. This accommodates components which have more fixed point input entries than can fit on one card. The continuation card number is 1 for the first fixed-point data card for a component, 2 for the second card, etc. The third entry gives the component number in the user’s nodalization. The numbering of steam generators must be the same on the sodium side and on the water side. Pumps and valves on the water side are numbered independently from pumps and valves on the sodium side. The remaining data entries vary with the geometric component and are as follows:

Compressible Volume

(2I3,11I6): 1, 1, user’s no., NTPCVW, NCVBCW, NSUPSG, NQFLG. NLGCVW, NENTRF

NTPCVW: A volume can be filled with single-phase liquid, single-phase vapor, or two-phase fluid. In addition, the pseudo-volume which marks the subcooled/two-phase interface in the evaporator is treated as a special case. NTPCVW is used to distinguish these four categories of volumes, with

= 1 for a single-phase liquid volume,

= 2 for a single-phase vapor volume,

= 3 for a two-phase volume;

= 4 for the pseudo-volume at the liquid/two-phase interface in the evaporator.

NCVBCW: Volumes which perform certain functions (i.e., heater volumes, steam generator outlet plena) must be flagged, and NCVBCW is used to flag them as follows:

= 0 for a standard volume,

= 1 for a volume boundary condition volume,

= 2 for an inlet flow boundary condition volume,

= 3 for an outlet flow boundary condition volume,

= 4 for a steam generator inlet plenum,

= 5 for a steam generator outlet plenum,

= 6 for a heater volume,

= 7 for a turbine.

The designation “standard volume” simply means any volume which does not fall into one of the categories for NCVBCW = 1 through 7.

NSUPSG: If the volume is contained within a supersegment, NSUPSG must be entered and given the number of the supersegment. NSUPSG is not entered for volumes which begin or end a supersegment.

NQFLG flags whether or not a compressible volume is a heater, with NQFLG:

= 0 if the volume is not a heater and

= the user’s number for the heater if the volume is a heater.

NLGCVW is the number of the leg of the nodalization to which the volume belongs (See ANL/RAS 89/6, Section 8.3 for an explanation of how a nodalization is divided into legs).

NENTRF: The thermodynamic state of a compressible volume can be specified through floating point input data in several ways. The user sets NENTRF for each volume to tell the code which thermodynamic quantities are being entered for that volume, with

= 1, single-phase volumes; pressure and temperature entered,

= 2, single-phase volumes; pressure and enthalpy entered,

= 3, two-phase volumes; pressure and quality entered,

= 4, two-phase volumes; temperature and quality entered,

= 5, two-phase heater volumes; pressure, two-phase level, and ambient temperature entered,

= 6, two-phase heater volumes; temperature, two-phase level, and ambient temperature entered.

If the volume is attached to a flow boundary condition, the following additional quantities are entered:

NBCINF, NFLSEG, IFBWCL

NBCINF: the number of the table in which boundary condition data are stored if the boundary condition is controlled through a user-input table, rather than by the control system.

NFLSEG: If the boundary condition is controlled by data from a table input by the user, the user must choose which thermodynamic data to enter and must signal this choice to the code through the flag NFLSEG, with

= 0, if enthalpy is entered,

= 1, if temperature and pressure are entered for a subcooled liquid boundary condition,

= 2, if temperature and pressure are entered for a superheated steam boundary condition,

= 3, if quality and pressure are entered for a two-phase boundary condition,

= 4, if quality and temperature are entered for a two-phase boundary condition.

For an outflow boundary condition, NFLSEG = -1.

IFBWCL: flags whether the boundary condition is controlled by a table or by the control system, with

= 0, if the boundary condition is controlled by a table,

= 1, if the boundary condition is controlled by the control system.

If the volume is a volume boundary condition, the following additional quantities are entered:

NBCINP, IVBWCL

NBCINP is the number of the table in which boundary condition data are stored if the boundary condition is controlled through a user-input table, rather than by the control system,

IVBWCL flags whether the boundary condition is controlled by a table or by the control system, with

= 0, if the boundary condition is controlled by a table,

= 1, if the boundary condition is controlled by the control system.

Segment

(2I3,11I6): 2, 1, user’s no., JCVW(1), JCVW(2), NODMAX

JCVW(1) is the compressible volume number in the user’s nodalization for the volume at the segment inlet,

JCVW(2) is the user’s volume number at the segment outlet,

NODMAX is the maximum number of enthalpy transport nodes into which may be tracked along a segment. See ANL/RAS 89/6, Section 4.4.2, for a discussion of the enthalpy transport model.

(2I3,11I6): 2, 2, user’s no., JCV1FG, IHTSEG, IHTLW, IHTUP

This input line is used only for heaters using a heater model other than the simple heater model.

JCV1FG indicates where a segment attached to a heater volume is attached to the volume, with

= -1, if the segment is attached to the bottom of the volume,

= 0, if the segment is attached in between the top and the bottom of the volume,

= 1, if the segment is attached to the top of the volume.

IHTSEG is the user’s number of the heater volume through which the segment passes,

IHTLW is entered if the segment is attached to a drain and is the user’s number of the volume containing the drain,

IHTUP is entered if the segment is attached to a desuperheating section and is the user’s number of the volume containing the desuperheating section.

Element

(2I3,11I6): 3, 1, user’s no., NBOREL(1), NBOREL(2), NELSGW, ITYPW

NBOREL(1) is the element number of the upstream neighboring element in the user’s nodalization. The code uses the convention that the first element in a segment is the one furthest upstream, and for this element, NBOREL(1) is set to 0.

NBOREL(2) is the element number of the downstream neighboring element in the user’s nodalization. The code uses the convention that the last element in a segment is the one furthest downstream, and for this element, NBOREL(2) is set to -1.

NELSGW is the user’s number of the segment in which the element is located.

ITYPW identifies the element type, with

= 3, for a pipe,

= 4, for a check valve,

= 5, for a pump,

= 6, for a heated element,

= 7, for a nozzle,

= 8, for a superheater,

= 11, for a valve.

(These element types use the same numbering as those on the sodium side wherever possible).

Steam Generator

1. IEVAP(ISGN) = 1 (evaporator) or 3 (once-through)

(2I3,11I6): 4, 1, steam gen. number, ICVSGN(1), ICVSGN(2), NOSGW, NODSC, NODTP, NODSH, IDUM1, IDUM2, LMPDOT

ICVSGN(1) is the user’s number for the compressible volume which serves as the steam generator inlet plenum,

ICVSGN(2) is the user’s number for the volume which is the outlet plenum,

NOSGW is the user’s number for the segment which is at the outlet of the vapor leg which is fed by the steam generator (used for saving plot data only),

NODSC is the number of nodes in the subcooled zone,

NODTP is the number of nodes in the two-phase zone,

NODSH is the number of nodes in the superheated zone,

IDUM1 is a dummy integer,

IDUM2 is a dummy integer,

LMPDOT is the number of time steps used to compute an average value for PDOT, the derivative of pressure with respect to time.

(2I3,11I6): 4, 2, steam gen. number, ISGBUG, IHELE, IOPT1, IOPT2

ISGBUG is the number of PRIMAR time steps between debug prints for the steam generator calculation. If 0 is entered, no debug prints will be generated.

IHELE is an indicator for the geometry in the evaporator/steam generator: = 0 for straight tube, = 1 for helical coil.

IOPT1 is an indicator for the search option in the subcooled zone: = 1 on calibration factor, = 2 on length.

IOPT2 is an indicator for the search option in the superheated zone: = 1 on calibration factor, = 2 on length.

2. IEVAP(ISGN) = 2 (superheater)

(2I3,11I6): 4, 1, steam gen. number, NELSUH, NODSHT

NELSUH is the user’s element number for the superheater associated with the evaporator (if any),

NODSHT is the number of nodes in the superheater.

(2I3,11I6): 4, 2, steam gen. number, ISHBUG, IHELS

ISHBUG is reserved.

IHELS is an indicator for the geometry in the superheater: = 0 for straight tube, = 1 for helical coil.

See ANL/RAS 90/1 for a detailed explanation of these steam generator parameters. Variable IEVAP should be set to 2 if a superheater is used, and to 3 if only an evaporator is used.

Pump

(2I3,11I6): 5, 1, pump number, IEMPW, IELPW, ILRPW, IPMWCL

IEMPW is the number designating the type of pump model chosen, i.e.,

= 0, if a table of pump head vs. time is entered,

= 1, if centrifugal pump model 1 is used,

= 2, if centrifugal pump model 2 is used.

Identical pump models are used for both waterside and sodium pumps, and so the discussion in ANL/RAS 84-14 of sodium pump models is the best source of more detailed information about the waterside pump models.

IELPW is the user’s element number of the pump,

ILRPW is the flag which activates the locked rotor modeling, i.e.

= 1, for a locked rotor, with pump speed set to 0, and

= -2, if a table of pump head vs. flow is entered.

Unless a table of pump head vs. flow is entered, ILRPW is initially set to 0; if the code computes that the flow or pump speed becomes so low as to lock the rotor, ILRPW will automatically be reset to 1 by the code.

IPMWCL is the flag which routes control of the pump to the control system, with

= 0, for table lookup of the pump motor torque,

= 1, for control of the pump motor torque by the control system

Volume boundary condition

(2I3,11I6): 6, 1, table number, NTABVL

The thermodynamic state of a volume boundary condition volume can be specified by any of six choices of input data to be entered in the floating point volume boundary condition table. The code determines which choice the user has made from the variable NTABVL, with

= 1, for pressure and enthalpy entered for a liquid volume,

= 2, for pressure and temperature entered for a liquid volume,

= 3, for pressure and enthalpy entered for a vapor volume,

= 4, for pressure and temperature entered for a vapor volume,

= 5, for pressure and quality entered for a two-phase volume,

= 6, for temperature and quality entered for a two-phase volume.

Supersegment

(2I3,11I6): 8, 1, superseg. number, NSSIN, NSSOUT

NSSIN is the compressible volume number at the supersegment inlet,

NSSOUT is the volume number at the supersegment outlet.

See ANL/RAS 89/6, Secton 8.2, for an explanation of how a supersegment is set up.

Option flags

(2I3,11I6): 9, 1, NTRNPT, IBOPRT

NTRNPT flags whether or not enthalpy transport is used in vapor-filled segments, with

= 0, if enthalpy transport is used,

= 1, if enthalpy transport is not used.

See ANL/RAS 89/6, Section 4.4.2, for a detailed explanation of when the enthalpy transport model should or should not be used in segments composed of superheated vapor.

IBOPRT is the number of PRIMAR time steps between full prints of the balance-of-plant parameters. If IBOPRT is not entered, the code sets IBOPRT to 1.

Standard valve

(2I3,11I6): 10 1 user’s number IVLELW IVLWCL

IVLELW is the user’s number for the element which contains the valve,

IVLWCL flags whether the valve is controlled by a table or by the control system. If the valve is controlled by the control system, there are two options: 1) have the control system specify the valve driving function as a function of time, or 2) have the control system specify the valve stem position as a function of time. The code uses IVLWCL to determine which of these three choices the user has made, with IVLWCL

= 0 if the valve is controlled by a table,

= 1 if the driving function VFRACL is specified by the control system,

= 2 if the stem position VSTEMW is specified by the control system.

See Sec. 4.2 for a detailed description of the valve model.

Balance-of-plant legs

(2I3,11I6): 11, 1, LEGORD

LEGORD orders the legs of the balance of plant for the purpose of printing output (See ANL/RAS 89/6, Section 8.3, for a discussion of how the balance of plant can be divided into legs).

Check valve

(2I3,11I6): ,12, 1, user’s number, ICVLEW, ICHVLK(1), ICHVLK(2), NCHVST

ICVLEW is the user’s number for the element containing the valve,

ICHVLK(1) specifies the type of valve closure criterion entered. The user must choose between having the valve begin to close when the pressure drop across the valve falls below a user-input number or having it begin to close when the flow through the valve becomes less than a user-input number. This choice is communicated to the code by ICHVLK(1), with

= 1, if the valve begins to close when a pressure drop criterion is satisfied,

= 2, if the valve begins to close when a flow criterion is satisfied.

ICHVLK(2) specifies the type of valve opening criterion entered. The user must make the same choice as for valve closure,and this choice is designated through ICHVLK(2), with

= 1, if the valve begins to open when a pressure drop criterion is satisfied,

= 2 if the valve begins to open when a flow criterion is satisfied.

NCHVST specifies the current state of the valve, with

= 1, if the valve is fully open and will begin to close if the pressure drop across the valve is less than the user-input value CHEPS1,

= 2, if the valve is fully open and will begin to close if the flow through the valve is less than CHEPS1,

= 3, if the valve is in the process of closing,

= 4, if the valve is closed and will begin to open if the pressure drop across the valve exceeds the user-input value CHEPS2,

= 5, if the valve is closed and will begin to open if the flow through the valve exceeds CHEPS2,

= 6 if the valve is in the process of opening.

The initial value of NCHVST should always be entered as either 1, 2, 4, or 5; as the transient progresses and the valve opens and/or closes, the code will update NCHVST to reflect the current state of the valve.

Selection of parameters for printing

(2I3,11I6): 13, 1, JPRINT(17)

The user may select some or all of 17 parameters to be printed by setting the appropriate JPRINT array element to 1. The JPRINT array is ordered as follows:

JPRINT(1) all compressible volume pressures

JPRINT(2) steam generator subcooled/two-phase interface pressures

JPRINT(3) flows in all segments except flow boundary conditions and evaporator subcooled regions

JPRINT(4) flows in all standard valves only

JPRINT(5) flows in all pumps only

JPRINT(6) flows in all evaporator subcooled regions only

JPRINT(7) all evaporator outlet flows only

JPRINT(8) flows at all flow boundary conditions

JPRINT(9) mixture enthalpies in all compressible volumes

JPRINT(10) temperatures in all compressible volumes

JPRINT(11) densities in all compressible volumes

JPRINT(12) outlet enthalpies for all elements

JPRINT(13) outlet pressures for all elements

JPRINT(14) orifice coefficients for all elements

JPRINT(15) orifice coefficients for all standard valves only

JPRINT(16) pump head for all pumps

JPRINT(17) pump speed for all pumps.

If JPRINT(1) is set to 2, all 17 prints will be made.

Relief valve

(2I3,11I6): 14, 1, user’s number, IRVLVW

IRVLVW is the user’s number for the element assigned to the check valve.