ML20041C763

Responds Partially to 820122 Request for Specific Info Re Core Energetics.Info Describes Contents of Magnetic Tapes & Envelopes of Microfiche.Psar Update Documenting Responses to Questions & Addl Computer Info Will Be Provided by 820312

ML20041C763
Person / Time
Site:	Clinch River
Issue date:	02/19/1982
From:	Longenecker J ENERGY, DEPT. OF
To:	Check P Office of Nuclear Reactor Regulation
References
HQ:S:82-006, HQ:S:82-6, NUDOCS 8203020543
Download: ML20041C763 (6)

Text

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Department of Energy l Washington, D.C. 20545 Docket No. 50-537 HQ:S:82:006 FEB 181982

• N P

REC E!UED Mr. Paul S. Check, Director

-9 19823" -

CRBRP Program Office 5 MAR 1 Office of Nuclear Reactor Regulation M Qh"Tf$i7 U.S. Nuclear Regulatory Commission S

ucc /J3 Washington, DC 20555 .

Dear Mr. Check:

TRANSMITTAL OF INFORMATION This letter partially esponds to your letter of January 22, 1982, which requested specific information in the area of core energetics. Computer format infonnation requested in Questions 760.1, 760.2, 760.4, and part of 760.5 are enclosed. The enclosure describes the contents of the magnetic tapes and envelopes of microfiche. This information is suitable for transmittal to your LASL consultants now to facilitate their review.

The PSAR update documenting responses to the questions and the remaining computer information requested in 760.5 will be provided by March 12, 1982.

Sincerely, J n R. Longen er, Manager i Licensing & Environmental Coordination Office of Nuclear Energy Enclosure cc: Service List Standard Distribution Licensing Distribution M ol 5

I\

8203020543 820219 PDR ADOCK 05000537 A PDR l

j

TRANSMITTAL OF INFORMATION Enclosure I. In response to the referenced letter, Items No. CS760.1 and CS760.2, one copy each of the following is provided:

1) Magnetic Tape - 7 track, 800 fpi - Ext BCD RL = 80, BF = 10

2) Microfiche - 21 envelopes - containing the results of SAS3D runs made by LBL,by GE for four cases The contents of these enclosures are described below. T.. four cases y,

for which this information applies are described in the document CRBRP- _c ,

~~

CEFR-00523 and are: ,

a) BOC-1 TOP best estimate Section 6.1.1 b) BOC-1 LOF best estimate Section 7.1.1 c) EOC-4 TOP best estimate Section 6.2.2 d) EOC-4 LOF best estimate Section 7.2.1 e

l

Enclosure No, 1 - Itagnetic Tape -

7 track, 800 frames / inch, external 8CD format Record length = 80 - 6 bit character Blocking factor = 10 (800 chart-ters/ block)

The information on the tape is organized into eight files. The first four files contain the actual SAS3D input used to initiate each of Changes in input the four runs transmitted in the order listed above.

values which occurred during the course of an analysis may be obtained from the enclosed microfiche listings.

The second group of four files consists of card image Fortran listings of each code module which was modified by GE relative to the SAS3D Release 1.0 version as supplied by ANL. Those sections of each which have been modified are delimited by:

cc+++++++++XYZ iP1/0D/YY4+++++++++++++

- Fortran changes -

g

+z++++++++++++++++++++++++++++++++++++

c

~~

where XYZ are the initials of the originator and MM/DD/YY is the date the change was finalized.

The four groupings are significant in that they represent three levels of modification permanence and that they are to be loaded in the order presented in the link operation.

File No. 5 contains the changes associated with the fuel vapor pressure model used for pin failure and fuel ejection in the 80C-1 TOP cases.

It is associated with the temporary library file LIBIt 1isand not the replace-generally ment file TEMPS used during the link operation.

loaded for runs other than fresh fuel where pin rupture is expected.

File No. 6_ contains tfie changes to SLUMPY and CLAZAS required to resolve the mass balance inconsistency in the upper blanket as described in CRBRP- -

GEFR-00523 Appendix A, page 4.

These changes are, of course, not needed in TOP cases and prior to Vslumping. The linking operation must occur, These changes are however,before the first fuel failure occurs.

associated with the replacement file REPLX used in the link operation.

file No. 7 contains those changes to Release 1.0 which are specific -

~

to CRBRP heterogeneous analysis (e.g., PSAR property values and corre-1ations,etc.). These changes are associated with the replacement file REPL1 on the link card and must be loaded before the changes in File No. 8.

File No. 8 contains those changes which are regarded as permanent modifications to Release 1.0. They are code fixes, modifications to editing features, changes required by the unique L8L operating system, etc. They are associated with the replacement file REPL2 on the link card and are loaded iast. .

Enclosure No. 2 - Microfiche Each fiche is labeled explicitly as to the run and sequence number (e.g., CRBRP EOC-4 TOP case 1.X) where X is the sequence number of the fiche in the run. The complete job control file including input

). is written to the fiche prior to the output file and the system log

("dayfile") for the run is appended to t,he end of the output file.

Modifications made to the input during the course of a run may be noted by observing the control file. Code modifications actually -Y i'oaded may be noted by observing the control file or the dayfile.

In addition to the output file,a separate fiche is provided containing a brief summary of each run. This is produced by a nostprocessor operating on the SAS plot tape (TAPE 10). It contains in brief format for each timestep:

1) Power and reactivity summary

2) Individual channel reactivity values for a) sodium b) clad c) fuel

3) Lower sodium slug mass velocity in each channel ,

4) Lower sodium interface elevation by channel

5) Peak fuel temp./ melt fraction by channel

6) Peak clad temp,/ melt front by channel

1RANSMITTAL OF INFORMATION , .

Enclosure II. In response to the referenced letter, Item No. CS760.4, one reel of magnetic tape containing the SAS3A-to-SAS3D input deck translaction routines is provided. The tape is unlabeled, 9-track, 1600 BPI, written in EBCDIC at 80 characters car logical record and 3200 charac-ters per block. The first file 6f the tape contains the FORTRAN source

• for a SAS3A input deck preprocessor which reads a deck from TAPE 1 and writes the resequenced deck on TAPE 9. The second file on the tape con-tains the source for the SAS3A-to-SAS3D translation program, which reads the SAS3A input deck froia TAPE 9 and writes the SAS3D input deck on TAPE 7.

The translation table required as input to this program on TAPE 8 is recorded on the thrid file of the tape.

Experience with this program at ANL has indicated several areas which may require attention after translation due to differences in SAS3A and SAS3D input assumptions, defaults, etc. There are:

Block Loc. Nane Comment 11 8 TMARS Not defaulted, must be supplied 11 9 ALMARS Not defaulted, must be supplied.

12 17-22 DKYLD Not defaulted, must be supplied.

12 23-28 DKLAM Not defaulted, must be supplied / _q.

51 19 IFUELV Check property tables for consistency.

51 20 ICLADV ' Check property tables for consistency. ....

51 21 IFUELC Check property tables for consistency.

51 22 IFUELE Check property tables for consistency.

51 23 IFUELU Check property tables for consistency.

51 24 IFUELB Check property tables for consistency.

61 1-24 RINFP No defaults, all values must be supplied.

61 25-48 ROUTFP No defaults, all values must be supplied.

63 39-43 FDENS No defaults, check for consistency.

III. Attached is the neutronics information for End of Cycle 4 (EDC-4) requested in NRC Question CS760.5.

The information is based on the three-dimensional VENTURE computer code.

The following information is attached:

1) A magnetic tape containing card images in the format specified by F. Parker of .lASL (7 track, 800 bpi, BDC, 80 characters per card) . '"

These are blocked into 45 card blocks. .

2) A computer outputq, listing of the card images on the tape.

3) A table of nuclear number densities that are used to produce the macroscopic cross sections for this case.

f. U 4

CRBRP NUCLEAR NUMBER DENSITIES 24

(*10 /CC)'

Fe Cr Ni Mo Mn Na B-10 B-11 C

.1287-1 .3735-2 .2552-2 .2892-3 .3535-3 .91 88-2 - *

• Stainless Steel-Fuel 36" Region

.1290-1 .3745-2 .2560-2 .2900-3 .3545-3 .9443-2 Stainless Steel-Lower Axial Blanket .

.1412-1 4099-2 .2800-2 .3174-3 .3879-3 .8453-2

. Stainless Steel-Upper' Axial Blanket

.9314-2 .2704-2 .1847-2 .2094-3 .2559-3 .6149-2 Stainless Steel-Inner and Radial Blanket 36" Region

.9343-2 .2712-2 .1853-2 .2100-3 .2570-3 .6250-2 Stainless Steel-Inner & Radial Blanket. Lower Extensten

.1056-1 .3064-2 .2095-2 .2,374-3 .2902-3 .5558-2 Stainless Steel-Inner & Radial Blanket, Upper Ektension 1742-1 .5058-2 .3455-2 .3916-3 .4787-3 .7907-2

.2698-1 .2470-2 .7713-2 Primary Control Assembly

.1761-1 .5113-2 .3493-2 .3958-3 4839-3 .8381-2 .2378-1 .2177-2 .6754-2 Secondary Control Assembly

.5201-2 .1510-2 .1032-2 .1169-3 .1429-3 .2041-1 Sodlum Channel -

4530-1 .1272-1 .7944-2 .1012-2 .1412-2 .4165-2 Radial Shield *

.3437-1 .9577-2 .5983-2 .7619-3 .1063-2 .8549-2 Axial Shield

.1611-1 .4678-2 .3196-2 .3522-3 4427-3 .8904-2 Fuel Fission' Gas Plen'um .

.1294-1 .3757-2 .2567-2 .2909-3 .3556-3 .6126-2 .

Blanket Fission Gas Plenum 9