ankur project present

7/21/2019 Ankur Project Present

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DETERMINATION OF SAFE OPERATIONAL

PRESSURE-TEMPERATURE LIMITS FOR REACTORPRESSURE VESSEL OF A TYPICAL PWR

By:

Ankur KatiyarMechanical Engineering

Under the Guidance

of

Shri R.N. Sen(SO!"# $ Shri %i&ek Shri&a'ta&(SO#


2/27

OU)*+NE

+N)RO,U-)+ON

OBE-)+%ES

ME)!O,O*OG/

RESU*)S

-ON-*US+ON


3/27

+N)RO,U-)+ON

R0% 'u12ect to non ductile fracture due to irradiation e31rittle3ent.

*EM de'ign criteria4 K+ 5 K+cOS.

ASME +++4 A66 G 7 Protection Against Non Ductile Fracture

de3on'trate 'tructural integrity.

Additionally4 USNR- 89 -R 0art 94 A66 G; Fracture ToughnessRequirements0;) *i3it' deter3ination.


4/27

OBE-)+%ES

)he '6ecific o12ecti&e' of the 6re'ent 6ro2ect include:

)o 6erfor3 'tructural integrity analy'i' for 'ta1ility of 6o'tulated crack in

R0% -ore;Belt region under 6lanned heat u6 $ cool do


5/27

*OA, -ASES ANA*/SE,

Design Condition :

,e'ign 0re''ure: 8=.8 M6a O6erating 6re'' : 8>.? M0a

,e'ign )e36erature: @9- O6erating te36 : ?> -

Planned eat-!" : 9-hr

Planned Cool-do#n :

Ti$e %s& Inlet Te$" %'C&

(%stead) state& *+,

,(( ,(

*(((( ,(

Ta.le /: Planned Cool-do#n T0ansient

Ti$e%s& P0ess!0e%MPa&

( %Stead)State&

/+1*

/2(( /31*

4(( /41(

,5(( /*1(

+(( //1(

*(((( //1(


6/27

MA)ER+A* 0RO0ER)+ES

Te$"

%'C&

T6e0$al

Cond!7ti8it)

%97al601$'C&

Densit)

%9g$4&

S"e7i;i7

eat

%97al9g'C&

Yo!ng


7/27

ME)!O,O*OG/

Pressure and Temperature LimitsCalculations

Structural Integrity Assessment

Fracture Calculations

Stress Analysis

Thermal Analysis

FE Modelling

Postulation of Crack

?K+3"K+t5 K+cK+c@>. " [email protected]@>();R)N,)#F M0a. 3

9.

AR) +nitial R)N,) " R)N,) " Margin

R)N,) -Hff

ff function of fluence

- function of 1a'e 3etal geo3etry

ReIuire3ent' of USNR- 89 -R 6art 9 a66 G

for 0;) li3it'Margin of J9 deg


8/27

MO,E**+NG $ MES!+NG

@, 3odel of 'hell region along


9/27

MO,E**+NGO -RA-K )+0S+NGU*AR+)/

Fig!0e 4: B!a0te0 Point Ele$ents a0o!nd

t6e C0a79 Ti"

K+

k @; for 6lain 'train4

k $ %


10/27

BOUN,AR/ -ON,+)+ONS OR

)!ERMA* $ S)RESS ANA*/S+SFo0 T6e0$al Anal)sis: )i3e de6endent te36erature on the inner 'urface of

R0%.

-on&ecti&e heat tran'fer coefficient (h# on the outer

'urface of R0%


11/27

RESU*)S OR S)RU-)URA*

+N)EGR+)/ ASSESSMEN) O R0%

0lanned !eat;u6 )ran'ient:

& '& (& )& *+& *,& *-& +*& +.& +/& '&&&

,&&

*&&&

*,&&

+&&&

+,&&

'&&&

',&&

.&&&

.,&&

,&&&

Ic 0s Temp for &1 of life

+IM 0s temp

Ic 0s temp for *&&1 of life

)e36 -

K(M0a.339.:#

Fig!0e ,: 8s T d!0ing "lanned

eat !" T0ansient


12/27

0lanned -ool;do


13/27

E%A*UA)+ON OR SAE O0ERA)+NG

0;) *+M+)S

0;) li3it' for !eat;u6 tran'ient:

& +, ,& /, *&& *+, *,& */, +&& ++, +,& +/, '&&

&

,

*&

*,

+&

+,

'&

',

.&

.,

,&

,,

(&

&1 LIFE

+,1 LIFE

,&1 LIFE

/,1 LIFE

*&&1 LIFE

!PERATI"3 P4T C5R6E

7ESI3" PRESS5RE

)e36 (deg.-#

0re''ure(M0a

#

Fig!0e 5: P-T li$its d!0ing Planned eat !" #6en

7o0e is not 70iti7al


14/27

& +, ,& /, *&& *+, *,& */, +&& ++, +,& +/, '&&

&

,

*&

*,

+&

+,

'&

',

.&

.,

,&

&1 !F LIFE

+,1 !F LIFE

,&1 !F LIFE

/,1 !F LIFE

*&&1 !F LIFE

!PERATI"3 P4T C5R6E

7ESI3" PRESS5RE0re''ure(M0a#

)e36 (deg.-#

Fig!0e : P-T li$its d!0ing Planned eat !" #6en

7o0e is 70iti7al


15/27

P4T limits for cool4do8n transient9

& +, ,& /, *&& *+, *,& */, +&& ++, +,& +/, '&&

&

,

*&

*,

+&

+,

'&

',

.&

.,

,&

&1 !F LIFE+,1 !F LIFE

,&1 !F LIFE

/,1 !F LIFE

*&&1 !F LIFE

!PERATI"3 P4T C5R6E

7ESI3" PRESS5RE

0re''ure(M0a#

)e36 (deg.-#

Fig!0e 2: P-T li$its d!0ing Planned 7ool do#n

#6en 7o0e is not 70iti7al


16/27

& +, ,& /, *&& *+, *,& */, +&& ++, +,& +/, '&& '+,

&

,

*&

*,

+&

+,

'&

',

.&

.,

,&

,,

(&

&1 LIFE

+,1 !F LIFE

,&1 !F LIFE

/,1 !F LIFE

*&&1 !F LIFE

!PERATI"3 P4T C5R6E

7ESI3" PRESS5RE

)e36 (deg.-#

0re''ure(M0a#

Fig!0e /(: P-T li$its d!0ing Planned 7ool do#n

#6en 7o0e is 70iti7al


17/27

-ON-*US+ON

Structural integrity of the R0% i' 3aintained under 6lanned heat u6

tran'ient.

Under 6lanned cool do


18/27

)!ANK /OU


19/27

Back u6 Slide'

6 Cal7!lation:

)he 6ro1le3 o&er here i' taken a' la3inar4 therefore h


20/27

Calculation of Shift in RT"7T 8ith

respect to Fluence ART Initial RTNDT RTNDT Ma0gin

Lhere4 +nitial R)N,) i' taken a' 99-.

- che3i'try factor


21/27

%alidation 0ro1le3'

P0o.le$ De;inition:

A thick


22/27

Stead) State T6e0$al St0ess Anal)sis

Problem Defnition:

A hollo< thick


23/27

? ?.@TC @.J@H89;@(higher#

Lo7ationand.oo9Sol!tion

St0ess %in MPa&

FEA Sol!tionSt0ess %in MPa& E00o0 %H&

Inne0 S!0;a7e =C.J

(co36re''i&e#

T@.?@

(co36re''i&e#

>.JT (higher#

O!te0 S!0;a7e =8.8 (ten'ile# CC.? (ten'ile# J.JC (lo


24/27

T0ansient T6e0$al Anal)sis

P0o.le$ De;inition:

A hollo< cylinder of inner radiu' 1 and outer radiu' c ha' the te36erature of the outer 'urface rai'ed at the

unifor3 rate of -S. After a 'teady rate of te36erature ri'e ha' 1een reached throughout4 the 3aDi3u3

tangential 'tre''e' .H89;JN33.K on the inner


25/27

%alidation of racture -alculation'

Co$"a7t Tension S"e7i$en

)he 'tandard for3ula of K8 for a co36act ten'ion '6eci3en i' taken fro3 AS)M E8=?9:

Lhere4

0 A66lied load

B )hickne'' of the '6eci3en

L Lidth of the '6eci3en

Lo7ation

and.oo9

Sol!tion

A""lied i%in

MPa1$%&1,&

FEA Sol!tion

A""lied /%in

M"a1$&

E00o0

%H&

C0a79 Ti" [email protected]@ 8J.?8 @.JT


26/27

inite *ength ADial 0art;through Lall la

ankur project present

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