ML19305D215: Difference between revisions
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Line 28: | Line 28: | ||
l | l | ||
* CORROSIONRATE | * CORROSIONRATE | ||
* OPERATINGINTERVAL ; | * OPERATINGINTERVAL ; | ||
i 5 | i 5 | ||
Line 45: | Line 44: | ||
- . FLm AREA = .110 So, IN. l NOMINALLEAKFLm | - . FLm AREA = .110 So, IN. l NOMINALLEAKFLm | ||
. 125GFM ; | . 125GFM ; | ||
I e PROFILE OF CORRODED AREAS m PRAIRIE ISLAND 2 R34 C79 | I e PROFILE OF CORRODED AREAS m PRAIRIE ISLAND 2 R34 C79 | ||
- TSP #2 AREA .060 x .1875 = .011 So, IN. | - TSP #2 AREA .060 x .1875 = .011 So, IN. | ||
Line 55: | Line 53: | ||
l e <= ( . | l e <= ( . | ||
g . | g . | ||
I & | I & | ||
. l | . l | ||
...p . . . . .. | ...p . . . . .. | ||
Line 132: | Line 127: | ||
_; .7_ | _; .7_ | ||
.j . .p . | .j . .p . | ||
a O 4 | a O 4 | ||
Line 144: | Line 138: | ||
FAULTED . 0 13 i | FAULTED . 0 13 i | ||
I r | I r | ||
e TUBEBURSTDATA l, | e TUBEBURSTDATA l, r | ||
CORROSIONPROFILES ! | |||
I TWEBURSTTESTS i t | I TWEBURSTTESTS i t | ||
l l | l l | ||
Line 157: | Line 150: | ||
-.---- - r -n..,-. . . . - _.-..-..~e- . . - . - , - ,r, ,,, , , , , - . , , , - , , ,.v---,-. , -w ,-n- ---y | -.---- - r -n..,-. . . . - _.-..-..~e- . . - . - , - ,r, ,,, , , , , - . , , , - , , ,.v---,-. , -w ,-n- ---y | ||
GE0 METRY OF ELLIPTICAL WASTAGE SPECIMEN m | GE0 METRY OF ELLIPTICAL WASTAGE SPECIMEN m | ||
I (a) l ; | I (a) l ; | ||
Line 184: | Line 176: | ||
9260 9460 9180 UNDEFECTED 9275 9665 9450 9440 9500 9240 i t | 9260 9460 9180 UNDEFECTED 9275 9665 9450 9440 9500 9240 i t | ||
i ELLIPTICALWASTAGE : | i ELLIPTICALWASTAGE : | ||
5465 5550 5635 55 - 60% : | 5465 5550 5635 55 - 60% : | ||
5635 5280 5700 l Rc = 32" ., | 5635 5280 5700 l Rc = 32" ., | ||
Line 233: | Line 224: | ||
e CNRODENTSOURCE RESININTRUSION CmDENSATE POLISHERS F | e CNRODENTSOURCE RESININTRUSION CmDENSATE POLISHERS F | ||
e imEEXPOSURETOCORRODENT PbLISHER AVAILABILITY 12//7 24 ftNTHS OPERATIM . | e imEEXPOSURETOCORRODENT PbLISHER AVAILABILITY 12//7 24 ftNTHS OPERATIM . | ||
e Tme CmROSIm RATE INDIVIDUAL LOCATION CmROSIm RATE LARGEST ECT INDICATIm IN SERVICE IS 45% ; | e Tme CmROSIm RATE INDIVIDUAL LOCATION CmROSIm RATE LARGEST ECT INDICATIm IN SERVICE IS 45% ; | ||
i | i | ||
Line 249: | Line 239: | ||
REMAINING WALL - REQUIRED WALL | REMAINING WALL - REQUIRED WALL | ||
= | = | ||
16 Mmms OF OPERATim | 16 Mmms OF OPERATim o | ||
E e | |||
l | |||
CONCLUSIONS | CONCLUSIONS |
Latest revision as of 23:57, 21 February 2020
ML19305D215 | |
Person / Time | |
---|---|
Site: | Prairie Island ![]() |
Issue date: | 02/12/1980 |
From: | Hirst C WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
To: | |
Shared Package | |
ML19305D213 | List: |
References | |
NUDOCS 8004140204 | |
Download: ML19305D215 (10) | |
Text
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. - 6thd~ef
. O -
i SAFETY EVALUATI0' .
t V
i
- LEAKAGE Af0 CRITICAL AREA 1
t 4
- TWEINTEGRIW !
l
- CORROSIONRATE
- OPERATINGINTERVAL ;
i 5
- CONCLUSION
- 9 l '
i 9
. 80041gogaf
,# e O
LEAKAGE AND CRITICAL AREA '
t
- DEFINITION OF LEAK l l
NORMAL SHUTDOWN PROCEDURES l
- No SAFEGUARDS ACTUATION N MINAL LEAK FLm AREA
. 3/8INCHDIAMETERHOLE
- . FLm AREA = .110 So, IN. l NOMINALLEAKFLm
. 125GFM ;
I e PROFILE OF CORRODED AREAS m PRAIRIE ISLAND 2 R34 C79
- TSP #2 AREA .060 x .1875 = .011 So, IN.
TSP #1 AREA .24 x .1875 = .045 So. IN.
. e LEAK RATE VS. BURST PRESSURE e
l
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e t
D I
TUBE IN~EGRITY .
i i
f s
- TWE WAu. REQUIRED l 1
NORMAL . M j i
FAULTED . 0 13 i
I r
e TUBEBURSTDATA l, r
CORROSIONPROFILES !
I TWEBURSTTESTS i t
l l
i e
A l
I
?
[
- e 9
-.---- - r -n..,-. . . . - _.-..-..~e- . . - . - , - ,r, ,,, , , , , - . , , , - , , ,.v---,-. , -w ,-n- ---y
GE0 METRY OF ELLIPTICAL WASTAGE SPECIMEN m
I (a) l ;
[ .
t O ,
i l
\
\ '
N =
[
RC "W M bw mmg s
m____________
{ ;
~ l
~
e*
s 1
l l
l l
l
l BURST PRESSURES FOR THREE HEATS OF 0,875 IN, X 0,050 IN, SPECIMENS :
P t
HEATB, HEATE, HEATf, !
50 KSI YIEW 44 KSI YIELD 41 KSI YIELD DEFECTIYPE I t
9260 9460 9180 UNDEFECTED 9275 9665 9450 9440 9500 9240 i t
i ELLIPTICALWASTAGE :
5465 5550 5635 55 - 60% :
5635 5280 5700 l Rc = 32" .,
LENGE = 1 h
l 85-90% 2950 -
2970 ;
Re = 6" i
REF: MJREG/CR-0277, JULY 1978 l
l l
\
l l
l
t 12,531-40 l
14, 00 8 - imiform Thinning i
12,000 -
RANGE OF 50 10 58 WALL BURST PRcSSURE . )gg ggggo
- un e cded gj 10,000 -
D
/p E / o :
O
- 40 TO 45% WAL E
- 8,000 -
REMAINI -
/ b "s'
m O 2% 0 27.' WILL g ,
y/ REMAINING g
E 6,000 c0
,.- /g/ O !
/ 10 TO 15% WALL REMAINI /p :
O - t 4.000 ,- - -- - - --- -- ._.
0 -
g/ -
i (THROUGHWALL
- i
/ ExectistnritcuRvcI l 1 :
- I I I ' I I - I I I o -
2.0 2.2
~
O.0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1. 6 l '. 8
~
l
, RECIPROCAL FLAW LENGTH ( 7 IN I) i Figure 5. Room Temperature Burst Pressure of 7/8Tubeswith Machined Flats ,
(Ref.WCAP-8429) *
- _ _ _ _ _ _ _ _ - _ _ _ _ . - _ _ _ _ _ _ .____l._
CORROSION RATE ;
e CNRODENTSOURCE RESININTRUSION CmDENSATE POLISHERS F
e imEEXPOSURETOCORRODENT PbLISHER AVAILABILITY 12//7 24 ftNTHS OPERATIM .
e Tme CmROSIm RATE INDIVIDUAL LOCATION CmROSIm RATE LARGEST ECT INDICATIm IN SERVICE IS 45% ;
i
- CALCULATED CmROS!m RATE OF 1.8% / MONTH l t
l l
l i
M g e
OPERATING INTERVAL
- REQUIREDMINIMUMIUBEWALL 13 MILS = 26%
- LARGEST ECT INDICATim IN SERVICE I
E%=55%REMAININGWALL 4
- CORROSim RATE 1.8% PER Mmm ,
PERMISSIBLE OPERATING INTERVAL FOR MINIMUM ILBE WALL i
REMAINING WALL - REQUIRED WALL
=
16 Mmms OF OPERATim o
E e
l
CONCLUSIONS
- AMQUATE BURST PRESSWE IS lh1NTAINED e C@ROSIONRATE1.8%PERMoNTH e &ERATING INTERVAL 16 IMS
.D
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