ML13311A047

Follow-up Safety Analysis Responses from Letter Dated July 15, 2013

ML13311A047
Person / Time
Site:	U.S. Geological Survey
Issue date:	10/31/2013
From:	Timothy Debey US Dept of Interior, Geological Survey (USGS)
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML13311A047 (8)

Text

• USGS science for a changingworld Department of the Interior US Geological Survey PO Box 25046 MS 974 Denver, CO 80225-0046 October 31, 2013 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555

Reference:

U.S. Geological Survey TRIGA Reactor (GSTR), Docket 50-274, License R-113, Request for Additional Information (RAI) dated October 2, 2012

Subject:

Follow-up Safety Analysis responses from letter dated July 15, 2013 Mr. Wertz:

The attached pages provide additional information for our response to RAI question 12.

Please contact me if further details, or corrections, are needed.

Sincerely, Tim DeBey USGS Reactor Supervisor I declare under penalty of perjury that the foregoing is true and correct.

Executed on 10/31/13 Attachment Copy to:

Vito Nuccio, Reactor Administrator, MS 406 USGS Reactor Operations Committee

GSTRHotRodEquilibriumModel (1) .i

=GSTR Core SS 12 wt% Model

• m: SNAP:Symbolic Nuclear Analysis Package, version 2.2.2, January 02, 2013

• m: PLUGIN:RELAP Version 4.3.0

• m: CODE:RELAP5 Version 3.3

• m: DATE:10/29/13

• Model options

• type state 100 new stdy-st

• iunits ounits 102 si si

• Noncondensable Gas Species 110 nitrogen

• tend minstep maxstep copt pfreq majed rsrtf 201 2500.0 1.0e-7 1.0 3 10 100000 300000

• variable parameter 301 tempf 103240000 302 velf 103110000 303 velf 103240000 304 voidg 103190000 20500000 999

• General Tables

• 20210000 type trip power 0 20210001 Ti me Powe r 0.0 2.218142e4 20210002 2200.0 2.218142e4

• Materials *

• n: zirconium 20100100 type tflag vflag tbl/fctn 1 1 20100101 temp thcond 20100102 200.15 25.202959 20100103 400.15 21.601646 20100104 600.15 20. 698202 20100105 800.15 21.601646 20100106 1000.15 23. 701373 20100107 1200.15 26. 000481 1500.15 28. 798041 20100151 temp capacity 20100152 200.15 1.73406e6 20100153 400.15 1.970523e6 20100154 600.15 2.115028e6 20100155 800.15 2.246396e6 20100156 1000.15 2.377764e6 20100157 1200.15 2.259533e6 1500.15 2.259533e6

• n: Fuel 20100200 type tflag vflag tbl/fctn 1 2 20100201 thcond 17.584624 lower upper aO al a2 a3 a4 a5 c 20100251 273.15 5810.928 2.039509e6 4168.9847 0.0 0.0 0.0 0.0 273.15 Page 1

GSTRLHotRodEquilibriumModel (1).i

• n: GAP 20100300 type gap

• n: S-STEEL type 20100400 s-steel

• Hydraulic components

• name type 1010000 "Downcome" pipe ncells 1010001 24 1010101 x-area volid 1.0 24 1010301 x-length volid 1010302 0.02125 1 1010303 0.132738 2 1010304 0.01905 22 1010305 0.132738 23 0.02125 24 1010401 volume volid 0.0 24 1010501 azi m-angle vol id 0.0 24 1010601 vert-angle volid

-90.0 24 1010701 x-elev volid

-0.02125 1 1010702 -0.132738 2 1010703 -0.01905 22 1010704 -0.132738 23 1010705

-0.02125 24 1010801 x-wall xhd volid 0.0 5.0 24 1011001 x-flags volid 10 24 1011201 ebt press temp none none none id 003 1.42972e5 333.15 0.0 0.0 0.0 1 1011202 003 1.43715e5 333.15 0.0 0.0 0.0 2 1011203 003 1.44447e5 333.15 0.0 0.0 0.0 3 1011204 003 1.4463e5 333.15 0.0 0.0 0.0 4 1011205 003 1.44814e5 333.15 0.0 0.0 0.0 5 1011206 003 1.44998e5 333.15 0.0 0.0 0.0 6 1011207 1011208 003 1.45181e5 333.15 0.0 0.0 0.0 7 1011209 003 1.45365e5 333.15 0.0 0.0 0.0 8 1011210 003 1.45549e5 333.15 0.0 0.0 0.0 9 1011211 003 1.45732e5 333.15 0.0 0.0 0.0 10 003 1.45916e5 333.15 0.0 0.0 0.0 11 1011212 003 1.461e5 333.15 0.0 0.0 0.0 12 1011213 003 1.46283e5 333.15 0.0 0.0 0.0 13 1011214 003 1.46467e5 333.15 0.0 0.0 0.0 14 1011215 003 1.46651e5 333.15 0.0 0.0 0.0 15 1011216 003 1.46834e5 333.15 0.0 0.0 0.0 16 1011217 003 1.47018e5 333.15 0.0 0.0 0.0 17 1011218 003 1.47202e5 333.15 0.0 0.0 0.0 18 1011219 1011220 003 1.47385e5 333.15 0.0 0.0 0.0 19 1011221 003 1.47569e5 333.15 0.0 0.0 0.0 20 003 1.47753e5 333.15 0.0 0.0 0.0 21 Page 2

GSTRHotRodEquilibriumModel (1).i 1011222 003 1.47937e5 333.15 0.0 0.0 0.0 22 1011223 003 1.48668e5 333.15 0.0 0.0 0.0 23 1011224 003 1.49411e5 333.15 0.0 0.0 0.0 24 j efvcahs jun num 1011101 00000000 23 1011300 jun control 1

1011301 mfl mfv unused junid 0.0 0.0 0.0 23 hd corr gas slope junid 1011401 0.019967 0.0 1.0 1.0 23 1020000 name type "Transfer" pipe 1020001 ncells 10 x-area volid 1020101 1.0 10 x-length volid 1020301 0.01 10 volume volid 1020401 0.0 10 1020501 azim-angle volid 0.0 10 1020601 vert-angl e volid 0.0 10 1020801 x-wall xhd vo lid 0.0 0.0 10 1021001 x-flags volid

• ebl 10 10 press temp none none none id 1021201 00: 1.49513e5 333.15 0.0 0.0 0.0 10 1021101 jefvcahs jun num 00000000 9 1021301 vl vv unu. sed junid 0.0 0.0 0.0 9 name type 1030000 "HotChann" pi pe ncells 1030001 24 1030601 x-area volid 5.85532e-4 24 1030301 x-length volid 0.02125 1 1030302 0.132738 2 1030303 0. 01905 22 1030304 0.132738 23 1030305 0.02125 24 volume volid 1030401 0.0 24 azi m-angle volid 1030501 0.0 24 vert-angl e volid 1030601 90.0 24 1030701 x-elev volid 0.02125 1 1030702 0.132738 2 1030703 0.01905 22 1030704 1030705 0.132738 23 0.02125 24 1030801 x-wall xhd volid

2. 1336e-6 0.019967 24 Page 3

GSTRHotRodEquilibriumModel (1).i x-flags volid 1031001 0 24 1031201 ebt press temp none none none id 1031202 003 1.49377e5 333.15 0.0 0.0 0.0 1 1031203 003 1.48551e5 333.15 0.0 0.0 0.0 2 1031204 003 1.47816e5 333.15 0.0 0.0 0.0 3 1031205 003 1.47631e5 333.15 0.0 0.0 0.0 4 1031206 003 1.47447e5 333.15 0.0 0.0 0.0 5 1031207 003 1.47263e5 333.15 0.0 0.0 0.0 6 1031208 003 1.47079e5 333.15 0.0 0.0 0.0 7 1031209 003 1.46895e5 333.15 0.0 0.0 0.0 8 1031210 003 1.46711e5 333.15 0.0 0.0 0.0 9 1031211 003 1.46528e5 333.15 0.0 0.0 0.0 10 1031212 003 1.46345e5 333.15 0.0 0.0 0.0 11 1031213 003 1.46162e5 333.15 0.0 0.0 0.0 12 1031214 003 1.45981e5 333.15 0.0 0.0 0.0 13 1031215 003 1.45801e5 333.15 0.0 0.0 0.0 14 1031216 003 1.45622e5 333.15 0.0 0.0 0.0 15 1031217 003 1.45444e5 333.15 0.0 0.0 0.0 16 1031218 003 1.45267e5 333.15 0.0 0.0 0.0 17 1031219 003 1.45092e5 333.15 0.0 0.0 0.0 18 1031220 003 1.44917e5 333.15 0.0 0.0 0.0 19 1031221 003 1.44742e5 333.15 0.0 0.0 0.0 20 1031222 003 1.44567e5 333.15 0.0 0.0 0.0 21 1031223 003 1.44391e5 333.15 0.0 0.0 0.0 22 1031224 003 1.4368e5 333.15 0.0 0.0 0.0 23 003 1.42935e5 333.15 0.0 0.0 0.0 24 j efvcahs jun num 1031101 00000000 23 1031300 jun control 1

1031301 mfl mfv unused junid 0.0 0.0 0.0 23 hd corr gas slope junid 1031401 0. 019967 0.0 1.0 1.0 23 name type 1040000 "Sink" tmdpvol 1 area length vol 1040101 1.0 1.0 0.0 az-angle inc-angle dz 1040102 0.0 0.0 0.0 x-rough x-hd flags 1040103 0.0 0.01309996 0 1040200 cword 103 1040201 srch press temp 1040202 0.0 1.4287e5 333.15 5000.0 1.4287e5 333.15 name type 105O000 "Source" tmdpvol area length vol 1050101 1.0 1.0 0.0 1050102 az-angl e inc-angle dz 0.0 0.0 0.0 x- rough x-hd flags 1050103 0.0 0.01309996 0 1050200 cword 103 1050201 srch press temp 1050202 0.0 1.4287e5 333.15 5000.0 1.4287e5 333.15 Page 4

GSTRHotRodEqui Ii bri umModel (1). i name type 2020000 "j un202" sngljun 2020101 from to area 102100002 103010001 0.0 2020102 fwd. loss rev. loss efvcahs 2.26 0.63 0 2020103 discharge thermal 1.0 0.14 flow mfl mfv unused 2020201 1 0.0 0.0 0.0 name type 2030000 "jun203" sngljun 2030101 from to area 103240002 104010001 0.0 2030102 fwd. loss rev. loss efvcahs 0.63 2.26 0 2030103 discharge thermal 1.0 0.14 2030201 flow mfl mfv unused 1 0.0 0.0 0.0 2050000 name type "jun205" sngljun 2050101 from to area 101240002 102010001 0.0 2050102 fwd. loss rev. loss efvcahs 0.0 0.0 0 2050103 discharge thermal 1.0 0.14 2050201 flow mfl mfv unused 1 0.0 0.0 0.0 2060000 name type "jun206" sngljun 2060101 from to area 105010002 101010001 0.0 2060102 fwd. loss rev. loss efvcahs 0.0 0.0 0 2060103 discharge thermal 1.0 0.14 2060201 flow mfl mfv unused 1 0.0 0.0 0.0

• Heat Structures

• 13030000 nh np geom ssif leftcoord reflood 20 24 2 0 0.0 0 13030100 mesh format 0 1 13030101 intervals radi us 13030102 1 3175e-3 13030103 1 3 .9193e-3 13030104 1 4. 6636e-3 13030105 1 5 .4079e-3 13030106 1 6.1522e-3 13030107 1 6, .8965e-3 13030108 1 7 .6408e-3 13030109 1 8 .3851e-3 1 9, .1294e-3 Page 5

GSTRHotRodEquilibriumModel (1).i 13030110 1 9.8737e-3 13030111 1 0.010618 13030112 1 0.0113623 13030113 1 0.0121066 13030114 1 0.0128509 13030115 1 0.0135952 13030116 1 0.0143395 13030117 1 0.0150838 13030118 1 0.0158281 13030119 1 0.0165724 13030120 1 0.0173167 13030121 1 0.018061 13030122 1 0.018161 13030123 1 0.018669 mate ri al interval 13030201 1 13030202 2 1 13030203 21 3 22 13030204 4 23 rpkf interval 13030301 0.0 1 13030302 0. 064437 21 13030303 0.0 23 temp interval 13030401 333.15 24

• Left Boundary Condi tion Data 13030501 bound incr type code factor node 0 0 0 1 0.01905 1 13030502 1 13030503 0 0 0 1 0.01905 2 13030504 0 0 0 1 0.01905 3 13030505 0 0 0 0.01905 4 0 0 1 0.01905 13030506 0 1 5 13030507 0 0 0 0.01905 6 0 0 0 1 0.01905 7 13030508 1 13030509 0 0 0 0.01905 8 0 0 0 1 0.01905 9 13030510 1 13030511 0 0 0 0.01905 10 0 0 0 1 0.01905 11 13030512 1 13030513 0 0 0 0.01905 12 0 0 0 1 0.01905 13 13030514 1 13030515 0 0 0 0.01905 14 0 0 0 1 0.01905 15 13030516 1 13030517 0 0 0 0.01905 16 0 0 0 1 0.01905 17 13030518 1 13030519 0 0 0 0.01905 18 0 0 0 1 0.01905 19 13030520 0 0 0 1 0.01905 20

• Right Boundary Cond ition Data bound incr type code factor node 13030601 1 13030602 103030000 0 101 0.01905 1 13030603 103040000 0 101 1 0.01905 2 103050000 0 101 1 0.01905 3 13030604 1 13030605 103060000 0 101 0.01905 4 103070000 0 101 1 0.01905 5 13030606 1 13030607 103080000 0 101 0.01905 6 103090000 0 101 1 7 13030608 1 0.01905 13030609 103100000 0 101 0.01905 8 103110000 0 101 1 13030610 1 0.01905 9 13030611 103120000 0 101 0.01905 10 103130000 0 101 1 0.01905 11 13030612 1 13030613 103140000 0 101 0.01905 12 103150000 0 101 1 0.01905 13 13030614 1 103160000 0 101 0.01905 14 Page 6

GSTRHotRodEquilibriumModel (1) .i 13030615 103170000 0 101 1 0.01905 15 13030616 103180000 0 101 1 0.01905 16 13030617 103190000 0 101 1 0.01905 17 13030618 103200000 0 101 1 0.01905 18 13030619 103210000 0 101 1 0.01905 19 13030620 103220000 0 101 1 0.01905 20 13030701 source mult dmhl dmh r num 13030702 100 0.0301 0.0 0.0 1 13030703 100 0.0343 0.0 0.0 2 13030704 100 0.0404 0.0 0.0 3 13030705 100 0.0464 0.0 0.0 4 13030706 100 0.0516 0.0 0.0 5 13030707 100 0.0561 0.0 0.0 6 13030708 100 0.0597 0.0 0.0 7 13030709 100 0.0625 0.0 0.0 8 13030710 100 0.0642 0.0 0.0 9 13030711 100 0.065 0.0 0.0 10 13030712 100 0.0648 0.0 0.0 11 13030713 100 0.0636 0.0 0.0 12 13030714 100 0.0616 0.0 0.0 13 13030715 100 0.0585 0.0 0.0 14 13030716 100 0.0544 0.0 0.0 15 13030717 100 0.0496 0.0 0.0 16 13030718 100 0.044 0.0 0.0 17 13030719 100 0.0377 0.0 0.0 18 100 0.0308 0.0 0.0 19 13030720 100 0.0247 0.0 0.0 20

• Right Additional Boundary condition Data 13030900 0 hthd hlf hlr gslf gslr glcf glcr lbf node 13030901 0.0 3.048 3.048 0.0 0.0 0.0 0.0 1.0 20 Page 7