conference presentation

7/17/2019 Conference Presentation

http://slidepdf.com/reader/full/conference-presentation-568ee73abb93c 1/58

Modernization in Reactor

Surveillance



Topics:

• Historical Background• Signifcance

• Codes & Standards Requirements

• Surveillance Tecniques

• !ndigenous "evelopment o# $%%s SurveillanceSstems



Historical Background1970s

Numerous efforts were initiated to develop on-line diagnostics to detect and

identify anomalies as well as to provide an alternative way of measuring certainoperating and process parameters in NPPs. Reactor noise analysis technique was

developed to use existing signals from existing sensors in NPPs to provide

incipient failure detection, measure sensor response time, monitor primary coolant

flow behavior through the reactor system, identify blockages in pressure sensing

lines, measure the vibration of reactor internals, etc.

1980s

fter !hree "ile #sland accident, methods were developed for on-line calibration

monitoring of pressure transmitters and detection of equipment anomalies . !hese

methods are now used to extend the calibration intervals of sensors and have been

approved by regulatory authorities of the $% and the $&

2000s

'xploration of equipment condition monitoring beyond sensors. (or example, on-

line monitoring data are used to track the vibration of reactor internals, measure

core stability margins, verify plant thermal performance, detect leaks, anticipate

failures of rotating equipment, verify proper operation of valves, identify and

locate loose parts within the reactor system, etc.



Signifcance' Benefts

Plant Safety

Plant Ageing Management

Economic

Plant Availability and Performance

Maintenance



Codes & Standards Requirements

1. ASME

OM-05 (In Service Monitoring of Core Support Aial Preload in P!"#

OM-$$ (%ibration Monitoring of &eat Ec'anger#

OM-$) (%ibration Monitoring and *iagnotic of +!" +ooe Part

OM-$, (%ibration Monitoring of "otating Euipment#

2. USNRC (RG 1.133-81)

3. IEC988-90

4. PNRA

5. German San!ar! "IN25475#.1(83)

$. %ren&' San!ar!



Surveillance Tecniques

%ibration Monitoring

Acoutic Monitoring

+ooe Part Monitoring

"eactor .oie Analyi /ec'nology

/'ermal atigue Monitoring

Motor Electrical Signature Analyi

Surveillance Monitoring of Electrical Cable uing +ine "eonance

Analyi Met'od



!ndigenous "evelopment o# $%%

Surveillance Monitoring Tecniques in

(")



Developed by "irectorate o# $uclear

%o*er (ngineering +Reactor



unction12enefit

• %"'-)"-*+ requirement• "easures natural frequencies shell

and beam modes of core barrelmotion due to (#.• /ore barrel displacements in mm• 0etection of relaxation in /1 2old-

0own %pring

• 0etection of possible contact betweencore barrel and RP.

• /ollection of Reactor Noise

%ignatures during plant lifetime.

"etection o# Core ,arrel Motion *it!ndigenous !-MS



%R!CH./0

%R!

CH./1

%R!CH.B0

%R!CH.B1

PRICabine

ts Signal!solato

rCH./0

Signal!solato

rCH.B0

Signal!solato

rCH./1

Signal!solator

CH.B1

SCM AnalyzingComputer

Processor

IVMSSoftware•"ata /cquisitionControl•Real.time signalprocessing•2requenc/nalsis•Reactor $oiseSignatures• Trend Monitoring•3rapic "ispla

A

DC

Indigenous IVMS (Conceptual Design)

'x-/ore

Neutron

0etectors

%ignals

IVMSSoftware• Data

Acquisition

Control• Real-time

signalprocessing

• requencyAnalysis

• Reactor !oiseSignatures

• "ren#Monitoring

• $rap%icDisplay

A

DC



Interfacing of

I%MS 3it' C-$

Po3er "ange

Intrumentation

C'a'ma

.uclear Po3er

Plant 4nit $



04'0'05

Simultaneous acquisition o# real.time signal

data#rom all e6.core detectors"ime Domain

Analysis

requency Analysis

"ren# Monitoring To detect rela6ation in teold do*n spring o# core

,arrel

Pea& an# RMS Value"ispla %eak and RMS -alues

#or all Signals

requency Spectrum /ppl "igital 2iltering7 Computesignals /%S"8 C%S"8 Co9 and%ase9

Signal $rap%ic Display Time displa o# all signals

requency Signals!ormalization

$ormalization o# #requencsignals to o,tain te core

,arrel displacement8 ,oronconcentration

2eatures o# !-MSSo#t*are



Time "omain Signals o# !-MS



2requenc "omain Signals o# !-MS



Coerence ,'* Signals o# !-MS



%ase ,'* Signals o# !-MS



C%S" o# Signals o# !-MS



!ntegritMonitoring o#

Reactor %ressureBoundar ,

/coustic /nalsisPA'C Designe#

(oose PartsMonitoring System

Developed at

Directorate of !uclear Power'ngineering-Reactor 'ngineering Design

)rganization



04'0'05

%MS Signifcance

Requirement of many !uclear Regulatory Stan#ar#s

;S$RC

R3 090<<.=0

oose %art "etection %rogramme #or %rimarSstem o# igt >ater Cooled Reactor

/SM(.)M.401 -i,ration Monitoring and "iagnostics o# igt

>ater Reactor oose %arts!(C?==.?4 /coustic Monitoring #or oose %arts "etection

Caracteristics8 "esign Criteria8 )perational%rocedures

%$R/ %ak'?'400

3ermanStandard

"!$15@A5T90=<

Surveillance sstems: Monitoring o# StructureBorne Sound #or oose %arts "etection

2renc

Standard

%MS installed on all ("2 %lants



04'0'05

(C)$)M!C !M%/CT



04'0'05

%MS 2unctions and

Requirements



04'0'05

(e*el of Di+culty



System ,ar#wareSystem ,ar#ware

%MS C)M%)$($TS

0 1 < @



04'0'05

2(/T;R(S )2 %/(C."(S!3$("%MS



04'0'05

%MS H/R">/R(



04'0'05

In#ustrial PC

(PMSSoftwar

e

DataA

cquisition

P$A

PR)C'SS)R

%enetration

CargeConversion

%MSSens

ors0DMa6

SignalCon#itioning

Cabinet

IsolationAmpliers Mo#ule

. / 0optional1

IsolationAmpliers Mo#ule

. 2 0optional1

3an#pass iltersMo#ule - /

E

E

E

E

E

E

E

E3an#pass ilters

Mo#ule - 2

E

E

E

E

E

E

E

EDi45 Ampliers

Mo#ule - /

Di45 AmpliersMo#ule - 2!mpact

Hammer

,ARD6AR'



04'0'05

Fuantit and ocation Criteria

Standard Sensor Location and Quantity

RPV Upper RPV Lower SG (each) RCP (each)

Indigenous

LPMS 3 (on RPV

Head)3 (on guide

tubes)4 1

ASM 3 3 3 1

US!RC 2 (min.) 2 (min.) 2 (min.) -

Ger"anStandard 3 3 2 -

Q!PP 4 2 2 1



04'0'05

Simultaneous acquisition o# real.time ,urst

signal data#rom all sensors"ime Domain

Analysis

requency Analysis

3urst Arri*al an# "imeDelays

arrival times in #requenc,ands7 o,tain dela times∆ti , signals cross

correlation9

Soun# 6a*eVelocity

3enerate am, "iagram#or S4.*ave vel9 in R%-

and S3

)btain 3urst ParametersMa6 ,urst amplitude g8rms g8 S'$ ratio8Histograms

3urst requencySpectrum

/ppl "igital 2iltering7Compute signals /%S"8C%S"8 Co9 and %ase9 ),tain,urst #requenc8 # ,8 and

sensor.mount resonance #req9

Signal $rap%ic Display)scillogram #or time displa o#

all ,urst signals and timedelas

Apply ,ertz "%eory

% impact acceleration8sound *ave intensit8contact time

2eatures o# %MS So#t*are



04'0'05

MASS 7 '!'R$8 'S"IMA"'

• # , . energ & mass curves ;S/

sceme• gi . energ & mass curves ;S/

sceme•

gi. velocit &mass curves ("2sceme

())S' PAR"

()CA"I)!•%ara,ola intersectionmetod•ookup ta,les #or R%- & S3•Source.sensor pat lengtsR

i

S4

Sensorcoordinates

6i8 i

Acceleration at (P(ocation• /tten9 in sound intensitalong source.sensor patlengt• ),tain accel9 at impact

location

S4

# ,

Coolant velocit atimpact location

v4



Testing and Cali,ration

• C-1 BOP

• High-Pressure oo!

• o"-Pressure Rig



04'0'05



Termal 2atigue Monitoring in $%%s



),Gectives o# T2M% %rogram

• (nsure #atigue li#e o# stagnant pipingconnected *it SRC

• Continuous temperature monitoring o#

selected piping• /ssessment o# potential #or cclic termal

stratifcation

• (valuation o# termal stresses

• Calculation o# termal #atigue usage #actor

• 2atigue li#e assessment



"esign Basis

Te T2M% design con#orms to te #ollo*ingcodes8 standards and guides:

• /SM( Section !!!8 144@ (dition8 ul 08 144@9

• (%R! MR%.<18 ITermal 2atigue Monitoring 3uidelinesJ8 /pril1440

• (%R! MR%.158 I)perating (6perience Regarding Termal2atigue o# ;nisola,le %iping Connected to %>R ReactorCoolant SstemsJ8 "ecem,er 1444

• (%R! MR%.1?8 IMitigation o# Termal 2atigue in ;nisola,le%iping Connected to %>R Reactor Coolant SstemsJ8"ecem,er 1444

• Reports on international e6periences

Critical (ocations of "%ermal atigue



Critical (ocations of "%ermal atigueMonitoring Programme



Surge ine <@ Termocouples8 =

SectionsSC- Sstem8 etdo*n ine 04 Termocouples8 5

SectionsSC- Sstem8 (6cess etdo*n ine A Termocouples8 <

SectionsS!S Sstem: Reactor -essel.line on SRC

oop /

D Termocouples8 <

SectionsSRH Sstem: etdo*n Suction.line 01 Termocouples8 D

Sections2eed.>ater ine to Steam 3enerator./ = Termocouples8 @

Temperature Measurement ocations



T2M% Hard*are

(egen#s an# Specs

"%ermocouple8 K.tpe $iCr.$i/l8 Temperature range: 4.0144 LC8 )utput :

4 to 495 -"C

"%ermocouple Integrated !ire, Ma6imum temperature: 0144CL8 SS Sielded8o* noise8 >it male'#emale 1.pin connector

Encloure, %% material

Connector, $iCr.$i/l

Single Pair Cable9 $iCr.$i/l Single pair8 2(% Teon sielded *ire8 o*noise

Cold 6unction Compenation 2loc7 , /ompatible with Signal Conditioner'%re./mplifer

Signal Conditioner1Pre-Amplifier, o*'ig pass flter option user selecta,le8N



T2M% Hard*are ContOd

(egen#s an# Specs

Penetration

Paire# Cable8 $iCr.$i/l eac pair8 individuall sielded

"MP Cabinet

C%assis :it8 !ntegrated MP!8 5 slots9 0 port %C!8 < meter ca,le #or integration

*it desktop computer

Data Acquisition Car#8 Resolution : <1 ,its8 <1 simultaneous analog input8Sampling rate : 14@9=ks's

Processing Computer9 !ntel %entium + !- *it 19= 3Hz processor8 1443B arddisk

Display an# Printing De*ices



Termocouples !nstallation on Clamp

Termocouples are eas to install8 no *elding is required



!nstallation o# Clamp on %ipe



!nstallation o# "ata /cquisition Hard*are



• )nline data ceck

• )nline data evaluation

• 2le6i,le sstem confguration

• 3rapical displa o# temperature and stress data

• Ccle counting algoritm

• Termal #atigue usage #actor calculation

• 2atigue li#e assessment o# piping

eatures of "MP Software



lowc%art for "MPSoftware

!emperature s !ime

!ransfer

(unction

lternating %tress s !ime

%tress

'valuation

%tress /ycle /ounting

!hermal (atigue

$sage (actor and

(atigue 3ife

ssessment

$sage

(actor

nalysis

%"'/urve

llowable /ycles

% t r e s s

%t

(requency

!ime

$ , t -

llowable 3imit

!hermocouple oltage

s !ime

i i, i



)n ine -i,rationMonitoring

Sstem -MS

PA'C Designe#

)n (ine VibrationMonitoring System

Developed at Directorate of !uclearPower 'ngineering-Reactor

'ngineering Design)rganization



04'0'05

-MS Signifcance

Requirement of many !uclear Regulatory Stan#ar#s

)M.00 -i,ration Monitoring o# Heat (6cangers

)M.0@ -i,ration Monitoring o# Rotating (quipment

)M.4< Requirements #or %reoperational and !nitialStart.;p Testing o# $uclear %o*er %lant%iping Sstems



(conomic Benefts

Macine running time can ,e increased , ma6imizing

te time ,et*een overauls9 )veraul can ,e reduced,ecause te nature o# te pro,lem is kno*n8 and tespares and men can ,e read9 Consequential damage can,e reduced or eliminated9

Te lead time given , condition monitoring ena,lesmacines to ,e stopped ,e#ore te reac a critical

condition8 especiall i# instant sut.do*n is not permitted9 Te operating load and speed on some macines can ,e

varied to o,tain a ,etter compromise ,et*een output8and operating li#e to te ne6t overaul9

Measurements o# plant *en ne*8 at te end o# teguarantee period8 and a#ter overaul8 give use#ulcomparative values9

Te lead time given , condition monitoring ena,les suc,reakdo*ns to ,e avoided9

Te recorded e6perience o# te operation o# te presentmaciner is used #or tis purpose9

Reduces maintenance costs9

aout "iagram o# -M



C e m i c a l a n d

- o l u m e C o n t r o l

S & s t e m

C o m p o n e n t

C o o l i n g > a t e r

S & s t e m

C o n t a i n m e n t

R e a c t o r C o o l a n t

" r a i n S & s t e m

R e a c t o r C o o l a n t

% u m p S e a l

> a

t e r ! n G e c t i o n

S & s t e m

S a m p l i n g

S & s t e m

M a

i n 2 e e d

> a

t e r S & s t e m

B o r o n R e c & c l e

S & s t e m

aout "iagram o# -M

S #t 2 t



So#t*are 2eatures

State.o#.te.art >indo*s P%.Based So#t*are -isual.CQQ %rogramming7 Menu."riven & ;ser 2riendl

(nanced 3rapic "ispla o# Time & 2requenc %lots

Calculation o# /cceleration8 -elocit and displacement options9

Calculation o# pase dierence9

So#t*are selecta,le 3ain o# 495808048044 #or "ata /cquisition

-i,ration Spectrum /nalsis up to <4 KH per signal

-i,ration "iagnostic %ackage #or Macine CM

Storage o# Time & 2requenc "ata #or ).line /nalsis Repla o# stored data9

Conformance C%ec&



Conformance C%ec&

$eneral mac%ine %ealt% c%ec& using *ibration measurement to appropriate

stan#ar#s

;ser #enable mo#ule for

conformance stan#ar#s<

+ Select macine classes and alarm limits

+ /llo* vi,ration limits to ,e set , our

o*n vi,ration e6perts9+ )perator #eed,ack: /ctual values &

Macine ealt grading9

Conformance Stan#ar#s



Conformance Stan#ar#s

• !nitiall availa,le li,rar o# pre.defned

con#ormance standards:

+ !S) 04=0D.1 and ,ased Steam Tur,ines &

3enerators

+ !S) 04=0D.< !ndustrial Macines

+ !S) 04=0D.D Reciprocating Macines

+ /$S!'H! 4.5.6 Centri#ugal & -ertical %umps

conference presentation

Documents

vibration of reactor

reactor system

reactor surveillancetopics

online monitoring data

core barrel displacements

measure core stability

ivms modernization

existing sensors