ML050980131

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Decontamination Port, Natural Frequency of Loop B Port
ML050980131
Person / Time
Site: Hope Creek PSEG icon.png
Issue date: 04/01/2005
From: Bird E, Keating R, Schlaseman C
MPR Associates
To:
Office of Nuclear Reactor Regulation, Public Service Enterprise Group
References
Task No. 1108-0502-0002-00 C-0142, Attach 16
Download: ML050980131 (14)
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  • Task No.'

' . '. ' H -' Cek lope Decon tamjination'Port .:,. '.....

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1. ' '.N' Titie: . .- -- Calculation No. '
Natu'ral FrequencyofLoop 'B',Port Attach 16 'oC' .42.

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>tv t i- ' --  :. .QUALITY ASSURANCE DOCUMENT

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--Thsdocument has bin preparedtchecked, anId revewe lapprovcd inwaccordance withcQ Assuranc -

-requirerientsof OCFRSO Appendix B,as specified in the MPR Quality Assurance Manual..

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MPR-QA~~ IR'm Q3.1 -1, Rev.,

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MPF Associates,'Inic. 2.'.

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.Calculation No. .Ched Attach'1 to6001'42 Affected P RECORD .'OF REVISIN S.

Description By Pae 2,,..j 1** .Revision

  • 0 I2A 8.'
1. Initial Issue , .

1 1 '-.1 I .. Revised pipe'lengtih to3.75 inches for modified model consistent with'field'

.work. 'Corrected material propertics formodifiedmodel. U a

'I result for modified mo'deL.. frequ I -

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Note: The revision number found on each indiidualpage ofthe calculaton icaRmos the revision levelof the calculation in effctat the time that page was last revised.

,MIPR QA Form QA3.1.2. Rw~. I

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.- 'MPRAssociates, Inc.

320 K~ng Street'.

-TMR Alexandnia. VA 22314 '

- CalculationNo 'Prepared By Checked By Page: 3 Attach 16 to'C-0142 A/ Revision: 0O Table of Contents 52 .. i. Og u ..  ; .... .... ............. ......... .,

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320 King Street AilexarddaVA Alexia~dn - N  :'22314

Calculafion No. *j .ae
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Attiach 6 to C-0142 Revision:

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PURPOSE,.'- ,

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,'#.Ie purpose ofthis calculation is to estimate the first mode natural frequencyof the Hope.Creek-- -

Reatc'torRecirc'ulatioiLop :B',decbhtamination port. Two configurations are evaluated the

.'originaa-builtconfliguration and aimodified (shorteined),configuration.'

2.0 -.BACKGROUND,

'Thefailed decontamination por is located on the suction sideof the 'B' Reactor'Re.i'culation

,, ':Pup 'with 'the isolabile section ofRe irc'ulation'-pipng. The"port is design'ed to be us'-ed-

,,,,inuently during outages to flush WaterbrougVthe Re iculation piping. D-ing normal pgant

.- operations, thepo'rtis sealed witi blted blak flange.

'..a ' ' '. .p .'fc --, ;. ,'fi ,, ,,, ~ c's

-. 'Theorigjai port' includes a 7.5 inch long ssio4nc n c nd fnsche2 e8p I 10). The failed port is'shown in Figure-1. .

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I Fligure 2-1.: Loop 'B' Oecontamina'tion Port 1APRO~orn:QA4~3Rev.

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MPR Associates,' Inic.

320 King Street Alexandra, VA 22314..

Calculation No. :Prepared By .Checked By 'Page: .:

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-- 16 to C-142

. Attach . Revision I 3.0 . ' ,

SUMMARY

'OF RESULTS The' irst mode natural frequency for the origin'al failed configuration is'122 hz;' the first mode

.natuIral frequencyforthe moifed cofi itionis 179lhz'(Refence 9). In the modified -

configra tion, the length of the schedule.80 pipe is shortened om 7.5 inche to-3.75 inches (assumed).

I 4.0 ANALYTIC APROACH.

The deontaminiation port natural fruencies were determined with a tee-dmensional finite -

I,, element mdel..The m6del represents one-half of the port with a plane of synunetry-through the as. The model .wa'de'qelop'ed .ith'e ANSYS 'co'mputer p' '

..- :port 'fere '

L . solid m-d4l of the' riinalgcvoiguration is shown in Fi gu e4-1;tefinite'element riodel of the'.'

V '.'original configuration is shown in Fire 4. The original and'modified config rations are

. '66m'.' o 'i nFi- 4-3.

ji F:

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' Fiure 4-1. Solid Model for riginal Decontamination Port i t

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, . -. , . - -1 MPRIQA FOrm: QA-3.14,

.M PR .. MPR Associts, Inc.

320 King Street Alexandriai, VA 22314 '.

Calculation No. Preipared By .CheckedBy,' Page: 6 4.

j.  :.'Attach l6 to C-0142 . .. {/' ' Revislon: '0 I I

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.a II II tI, ieconment Model fo Figre 4-2..- Finte'Ele rijina tam a n Port t

J MPR QA Form,: CA431 -3.'Rev. 0.

Associates, Inc.

UXMPR32 KingStreet (andaVA ;22314. ,

Calculaton No. Prepared By' Checked By l.Page: "7

Attachl 6toC-142 .Revision
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il .; ' -. I Figuire 4.' Original and'. MPdfed Dconbrnina'Uon Po.rts t "

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'.",.' - -5.0- FINITE ELEMENT MODEL DESCRiPTION  :

. ,.... - ' elment model of he Th -ifi' ite oaination potis a thre dimensiona solid mode'l

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P:

-epreSentation. The model in'clu'des"a short ength'fteRea'ctorcirculation'pipig ibe;'

.. s,',. - idolet decon'nination po piiigna 900W blind la'gei-. ihe.;"'

4_. ',*

btingh egohetr is not i'cluded; ebltie gardwareis icluded.

'ne-ialf of th'epo is modele recognizing symmetryperendicular to' the'Rcir t ion piping.

t. ,.;,

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The-weight of water, instilation andbolting:Are included in themodel-withmass elements t .. ' '-

(ANSYS el ementsMASS2).

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t The model is meshed withan 8-node'hexahedral element With-three degrees-eof-freedom per-node i'' " (ANSYS element SOLID45).

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5.1 -Geometriy i  :  : -.

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The geometric dimensions for themodel ofthb decontamination poqrtwere&detei rmni'ned from ; .

References'2 tugh 6 and Reference' 1. Table 5-'lists the primary dimensioris used to develop

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MPR OA Form: OA-3.1-3, Rev. O F.;

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0 King Street 3xandria, VA '22313 Page:' 8

4 V Calculation No, Attach 16to C-0142 - . /

Pepared By -Checked By

-Revision ; 1 .

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.the model Appenidix A 'shows an outline of the decontamination port with-the geometric.,

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keypoints numbored.' Coordinates for the'Ieypoints " are also provided in Appendix' A,

  1. .. ;. ., Thewelding neckan'd blind flag'es ae 900 #,feren',ce 2). -The decontamination' ipeis 4 .ij'Ch
- I schedule 80 (Reference'2).:

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i. - I; T ^w -.: Tabile 5-1. ,Geometrac Parameters

'A'..

. H..

.. ;Descriptlon  ;. ',.. DImension (inch) Refereice

' '"""' I . 'Rec~rculatiori Pipe'OD 28 3

. ,. .:Recirculation PipeThc:knwes , ,; , 1.2 3 1"'- ';

t, - . '

t .-. :"; i Weldolet Radius , , 4.1845

. .4-

  1. .;,. ' 4.,

t_. a Weldolet C ind ical S on Height ,, , 1.31 4 r - '

'..' .' R Weidolet Tapered Sectiorn eig'ht' 2.44 4. .1' 4

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P iip&<OD ~' ',  :-'-- -;': "- ' ;' 'l- . ,.,,

' 1S', .ipe ID (S&1ul680).;' .:' ,, 3'826 5 4,.,.5., 7.

Pipe Length (origin lmodifed)  ; 7.5/3.75 .: assur d.

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': BindFlangeOD 11.5 6 BlindFange ised Fa'c OD ' 6.i875.' 6

-Blin'd&Weldingii6' kFlange Thic kess  ; .,;- 1 6

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.. - .. . . Blind & Welding Neck Raised Fae n-Thckess'.0.25 6 1 t ': ',

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Wedn F.ng ConicalHeIght *, ,-,*.,, ,2 . stima.e:

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. .2 Boundary d sConditio

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-i"',. The only stru abundyco'nditio' applie to, he fnite element model were displacement i' f 'i, ', .

,t, _
', ' .cohstqints.i'Atte nemetiry ethat isperndpcuaid toii iftteRekirculationpipin axis and ":

passes'through'the'centerineod c mnathon'o the' dislacements nomal to'tle piane.

rl

.(z) are restrained. Athe end oft eciuia ion pipe porion of he noei pposite eport, i

.s, >

-displacemntsineac of thethre Catesian coo inate dirctions (ux, uy and uz) a'rera ine'.'

a_ 1 ; b _. .Thestructural boundaryconditions areshownfi Figure :5-1.

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MPR Associates, Inc.

King' Street Ale xandna, VA 22314 Calculation' No. Prepared By Checked By Page:. 9 -- (

Attach 6 to C-0142 . 4 43 ,/. .'Revision: ,.

  • ' Displacem'ents normal to this-face i

wll

,(uz),set tod zero.4

t . -'6

.:- k e . '

I A1 xxuy an uz) set o zero on this fce.-

VI I.

I t FIgure 5-1. -StriuduraI Boundar Conditiions 5"3 Material Propertles The matenal properties used in the natural frequ'ency calculation are'the elastic mnodu~lus, Pos- on Ratio,,h R cic atb

,Poisoins io and the material density. From Reference2, the Recirculationp

,decontainination port are=304-stainless steel.' Thetemperature Used to evahiatet he elastic modulus is§532 deg ' (ReferenceF7). rom Reference Celastic 8, the modulus at is .'3deg' 25.7e66si. '

k The values of Poisson's'Ratio and material density'used in the analysis are liste d belowi:

oissosiRation 0.3 Density '0.284 lb/in3 MPRQForm: 'A-313 Rev. 0

MPR Associates, inc.

-. 3206King Street Alexandria, VA -22314-Calculation No. Prepared By -Checked By Page: 10 Attach&16to'-0142 IRevision:: . - .0

.A .- - . .VI.. . .........

5.4 'Added Mass The weight of water.in'the decontarnination port,:insulation and 'bolting were included in the model with mass elements. Note that the fiite 'eleinent model rcpresents one-half of the

geometry. Consequently, the total weights were ditided by two in the model.

For the bolting weitlits, note that the welding neck and blind flanges arerepresentd in,.the finite

.eleent'model without holesb.-The holes are nominaly filled withthe bolts. Consequently, theO.

bolting,weiiht 'that needs to be added'is tee 1/2 inch section'between the flanges and the'boited

'lenths outside the flanges.

. he weights in.T able 5-2 were assumed fore a.theani-ysis:

'Table .' Weights Original * ! Modlfied.

.item Port Weight Pot Weight Comments

.i) . llb)

,Waterdensity of 4 ibIft 39, cylindrical water

.Water .5 .4 volume 3.826 inch diameter by5 irches :

._ l','.:.-.;ong (11 inhies' for modified),.

Insulation , 5. ', -.'Refeence 7 foronal, estimated for modifed i Bolting 7 ,

6 blts, 1.125 Inch diameter, 0.5 inclength between flanges; plus 8 bolts and nuts, estimated;i.5 Inch long, i.5.Inch diameter 1-MPR OA Formn-OA-3.1;3. Pev., 0

PR Asscits, Inc.

i -*IMPR 320 King!Street',

lexandia,-VA 22314.

Calculation No. 'Prepared By Checked By Page: 11

  • Attach 16 to C-ii42 - . .-. Revision: -0 4,-

-6.0 R EFERENCES

.S.E

. Tlhe finite elemnentmodel was developed and analyzed w.ith the ANSYS Fi n t El m n Aimlysissprog'ran'Versioi 8.1. The I analysis w'a perforrn'd otn a Sun'28 .....

4,

.the Solans 8 Operating system.'The ANSYS installation verification is' locumented in

- -QA-81-1.

-*2. ...General Electric drawing 761E350,Sheet '2,Revision'14.

'3.-. Asoiated Piping '&Engineering'drawing 10855-N1-B31-(G001-0194'( ~5) 1-iR6Visfion I.

4. Gene'ral Electric drawing '31C7544,` Rvision C, "Weldolet Nozzle;"

5.' 'Crane Technical Paper'41O.'

.6. ;Tu'be Turn Catalognurmber 1 1 i-943.

7 -Email fom Philk ush ,MR) todwar ird R) dated March 30,2005,

-Dec6ntiminanio& Line Details.  : -

'8. . ASMEBo~iler &Prens 'Vs.elC'd ,2004 Prt'D; Properties,Tabl 1TM-G 'p'

  • L9. ' Coinp'uter output files 11080502.ebb-i 1 tru gh? 108- 5 2-ebb -14 t .10 Facs *ile fr kec es."

A. GJcia PR K ting (MPR) datd M h30,205, '"Field 1**

., f * ' . .

f l - .

z. .. ' t L

MPR QA Form: QA^3.143, Rev. O

Associates, Inc.

AMPIR VA PI 'King Street afndria,VAA 22314, Calculation No. Prepared By 'Checked By Page: A-I Attach 16 to C-0142 /,/.4 Revision: 0 l t

"Geo'Metrd Keypoint

.FiguiresA- 'and A-2 show an outlinebofthe decontaminationport'model.'The fli prs'include.:~

numbe'd gedom'etricckeypoints. Coordinates for the' kypointstare listed in table A-1 1

MORdA or: Q433~1Re.-

. Fe . z.

Figu'reA-I. GeomieticKeypoints i

MPR Associates, Inc.

I UIA1MPR *320 KIng Street Alexandira,'VA 22314

-Calcuialon'No. Prepared By Checked By .Page:' iA-.2' Attach 16'to C-0142 Revision: :0 V

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Figure A-2. .GeometIc Keyppints, Detail MPR QA Form: bA-3.1V3. Rev. 0

MPR Associates, Inc.

. ;E-M D ., 320 King Street

Ale xandrnaVAA-22314,

-Calc'ulto'n'No. Prepared By Checked By Page: A-3'

Attach 16 to C-0142 , ' Revislon: O Table A1. Keypoint Coordinates A - ,

No.

  • X Y z .
5.'00 14.'00 '0.00 6.00 -2
-25' 25.25 0.00.  ;

.1  :

m I

7.00' '12.80 0.00 0.00 . . .

. _ i 11.00 -3.09 27.25 .0200 . .

12.00 0.00 -14.'00' 0.00 . ..

14.00 ,0.00 -12.80 0.00 15 :00 -5.75 '27.25 0.00 . ,

16.00 1.91' ,27.25 0.00 .

i:

19.00 '4:18 . s'15.3'1 -0.00 , . . .

.'.; ' il 22.00 1.1 .' 15.31 0.00 - . - . -. .-

23.00 ,5.75 29.00 0.00  : ' . ,. '  !

26.00 ;225. 17.75 . , .

28:00 1.91* '29;'00 0.00 *' ' ':

S

" i.;

3.09  ! 29.00 0.00 . t

".! - ' i

. 1.91 9.2 0.00 *. .... ..

33.00' '1i91 ;13.87

- -0.00 '.,' *

/,

A 0 35.00' 1.91 -*.12.66 )` -0.00 .' '

-437.00 -2.25 ' 15.31 0.00 '. ,

  • 1.91 . ' 17.75 0.00 > - . . ' - '.

A 2.;60,;

- ' ' . ' '.s ,'.:'

  • -41:00 ',2.25 O;00 - ' . . . '.:
  • 43.00

'459O.00 I.0 418 13.36 0.00 * ,

}

,.: , i i

225'. .13.82 ': ' . ' -. ,'; ........ ,

- -47.500 '4.18. 12.10O 0.00 ms W

t; r309. z2925 ' 0.00' *- , .. , i;l.,' ,

. 52.00'O ' - 191 ' 29.25

- 0.00 . . -,@ a t .53.00 - '225 31.25 '0.00 ":  :'. ' ' -'..::.

. '56.00'. .191 -. 31.25 '0.00 a :t . ,

s
. ', ' .S z :

a7 '57:00 0...00 29.25 '0.00 - . - . - ,. -

J 58.00 *3.09 ' r 29.50 .0.00 \

.1

-60.0t0 0.00 ...

f .

. '61 t00. *' 7'5 ~29.50 0.00 . . . #

s .

'6300 5.75 :31.25 0.00 .

. . f

-- 65.00.* 0.00 3 .25 0.00 . . . .

z66.00 3;09 2' "31.25 0.00 . . . 4

69'.00 2.25 27.25 0.00
  • 71.00 *1.91' 29.50 0.00

'7300 2.25 .29:00 '0;00 74.00 2.225 '29.25 .0.00

.76.00 '2.25 "29.50 0.00 MPR OA Fonn: 0A3.-3. Rev. 0

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