1

A FULL SCOPE SIM

ULATOR FOR THE

ARGENTINIAN NUCLEAR PLANT:

ATUCHA II

PRESENTATION CONTENT

Background

AtuchaII plant description

Sim

ulator project scope

Modeling

2

Modeling

HMI

C&I

Difficulties and Challenges

Project present situation

BACKGROUND

At present, two nuclear units are operating in Argentina:

AtuchaI (PHWR-350 Mwe) and Embalse(Candu648 Mwe).

A new unit: ATUCHA II (PHWR-745 Mwe) is due to enter in

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operation shortly (Expected in September 2011)

ATUCHA II project began in 1980 and was resumed in 2007.

The plant site is located 115 Km. from Buenos Aires.

ATUCHA II PLANT DESCRIPTION

ATUCHA II (pressurized heavy water reactor) utilizes heavy

water as coolant and m

oderator (independent systems). It’s

design was originally based on the MZFR Siemens prototype.

The plant is cooled by the Parana river.

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It uses natural uranium as fuel. Exhausted fuel is replaced in

parallel with the plant in operation.

A containment building houses the nuclear systems including

a large dim

ension reactor vessel and two steam generators.

ATUCHA II PLANT DESCRIPTION

REACTOR COOLANT

SYSTEM

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ATUCHA II PLANT DESCRIPTION

MODERATOR COOLING

SYSTEM

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CONTAINMENT AND

REFUELLING

MACHINE

ATUCHA II PLANT DESCRIPTION

ATUCHA II PLANT DESCRIPTION

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�Sim

ulator with an

identical layout to

actual control room.

�Sim

ulated control

room will occupy

275 m

Cand 80

Panels.

CONTROL ROOM

LAYOUT

ATUCHA II PLANT DESCRIPTION

ATUCHA II PLANT DESCRIPTION

SAFETY RELATED SYSTEM

CORE INSTRUMENTATION

BOP AUXILARY

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�19,400 I/O signals

for conventional

instruments

�11,400 Digital +

2,560 Analog Signals

for the Supervision

computer.

�3,400 Additional

signals for the SPPA-

T2000 system.

CORE INSTRUMENTATION

MAIN CONSOLE

REFUELLING MACHINE

HVAC

PRIMARY AUXILARY

BOP AUXILARY

PROJECT SCOPE

Supply of a full scope control room replica sim

ulator. Physical

and functional fidelity requirements will meet ANSI-ANS 3.5.

Supply of a Control room trainer based on virtual panels,

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process schematics and OM-690 displays.

Training m

aterial for AtuchaII operation staff qualification.

Sim

ulator training scenarios design.

Support for the sim

ulator certification.

Intended dual use: Training and Engineering

I&C approach: SPPA-T2000 & OM690 (TXP System), TXS

and Plant supervision computer will be sim

ulated.

All m

odels will be based on first principle equations and

SIM

ULATOR MAJOR FEATURES

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All m

odels will be based on first principle equations and

conservation laws.

Extended use of TRAC-RT six equations therm

alhydraulic

code to all the systems with two phase flow phenomena.

�Project start: February 2010 (project month

0)

�Class room trainer RfT

(Phase 1: limited scope): M

ay 2011 (month

15)

�Panels erected at Tecnatom: March 2012 (month

26)

PROJECT W

ORKPLAN

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�Factory acceptance test beginning:May 2012 (month

28)

�FAT tests completion: Octo

ber 2012 (month

32)

�Full scope replica simulator and class room trainer Ready for Training:

February 2013 (month

36)

ATUCHA II SIM

ULATION TECHNOLOGY

MODELLING

TOOLS

BOP + AUXILIARIES

TEAM SUITE MODEL

SIMULATION

ENVIROMENT

SIMULATION

TECHNOLOGY

INSTRUCTOR

STATION

INSTRUCTOR

STATION

MODELLING

TOOLS

NSSS CODES

INPUT -OUTPUT

CLASS ROOM

TRAINER -HMI

TEAM SKETCH

TEAM SUITE MODEL

BUILDER

HYDRAULIC

NETWORKS

THERMALHYDRAULIC

CONFIGURATION MANAGEMENT SYSTEM

NSSS CODES

INPUT -OUTPUT

ELECTRICAL

NETWORKS

CONVENTIONAL

MODELS

LOGIC & CONTROL

NEUTRONIC

TRAC_RT BASED MODELS

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TRAC_RT BASED MODELS. SOME FIGURES.

433

423

364

480

482

430

489

TURBINA

CONDENS.

354

485

479

TANQUE FW

487

481

431

432

470

472

420

471

421

422

475

486476

483

484

474

473

426

425

435

436

424

434

477

452

453

456

454

450

451

488

478

112

2 1 3

11

112

12 2 1

1 2

1 2

(3,422)

(1,423)

(3,421)

(4,422)

(3,425)

c

(3,426)

(3,435)

(3,436)

(4,456)

(2,453)

(3,432)

(1,433)

(4,432)

(3,431)

NSSSmodel: 457cells.

Moderato

r: 288cells.

Main Feedwate

r: 223

cells.

Reacto

r V

essel: 168 cells

14 axial levels

3 radials

14

929

999

62

561

365

361

TAP

939

083

084

085

985

034

081981

983

023

037

032

033

038

035

036

039

930

933

920

922

020

022

024

030

025

028

029

026

027

923

031

931

921

021

082

984

61 60

360

366

367

540

541

362

363

52

351

51

50350

356

357

501

500

521

352

353

355

520

560

123

123

173

173

982

369

359

001

003

937

927

1

1

11

1

3

21

1

1

1

11

13

21

1

6

1

11

1

6

13

925

935

3 radials

4 azimutals

Ste

am G

enerato

rs: 38

cells.

INTEGRATED IN THE SIEMENS SPPA-T2000 OM690 SYSTEM

•SUPERVISION COMPUTER W

ILL BE SIM

ULATED

•FUNCTIONAL CAPABILITIES TO BE INCLUDED IN THE

SIM

ULATOR SCOPE:

•Alarm

sequence displays –

ASD

•Curve displays X-T

•Bar Charts

•Process displays

•Data archive (4 hours)

•Logs

PLANT SUPERVISION COMPUTER

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ATUCHA II has presently 22 plant systems operated and controlled by the SPPA-

T2000 system. OM690 HMI (70 displays) will be simulated.

SPPA-T200O: PLANT SYSTEMS

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It includes: Plant systems (P&Ids) displays +

Soft panels +

OM690 displays

displays

CLASS ROOM TRAINER HMI

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�Components symbols similar to P&Ids

diagrams

�Display design following piping and

equipment arrangement in the P&ID

�KKS id. beside every component

(valves, pumps, ….)

�Equipments colors as in the Control

room : W

hite (closed-off), green

(open-on)

�Controls are control room replica (soft

panels)

�Siemens OM690 design

criteria.

�Color code based on design

criteria.

�No KKS id.

�OM690 functional controls

type.

I/O INTERFACE FOR ATUCHA II SIM

ULATOR

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INSTALLATION

I-O CARDS

REAR PANELS

Within the project scope, Tecnatom will supply:

Pilot project on training m

aterial generation: 5 plant systems will

be described (training perspective)

TRAINING MATERIAL ANDKNOW-HOW TRANSFER

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Sim

ulator training scenarios (Ten scenarios will be designed)

Customer instructors will be qualified on:

�Training in simulator techniques

�Training follow up

�Class assessment

�Simulator training scenarios design

To provide a class room trainer in 15 m

onths including the

main plant systems.

Moderator and coolant: independent systems.

Singular core design: with inclined control rods, natural

uranium, on-line refueling m

achine system.

PROJECT DIFFICULTIES AND CHALLENGES (1/2)

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Plant systems m

odeling extended to two-phase flow

phenomena: Main and auxiliary feedwater, Turbine,

Condensate, Containment….using TRAC_RT.

Separate input basedecksand m

ultiple TRAC_RT sim

ulation

environments.

Heavy water properties had to be considered within the

therm

alhydraulicmodels.

Control room instrumentation sometimes obsolete or

decommissioned (instruments unavailable)

Plant design documentation difficulties: old, under

development and changing (Plant under construction)

PROJECT DIFFICULTIES AND CHALLENGES (2/2)

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development and changing (Plant under construction)

Operating plant procedures are being drawn up.

Validation. Unavailability of actual process data.

�Difficulties and challenges seem to be overcome

�Project schedule without delays (next May due delivery

of Class room trainer Phase 1)

�Customer soundly involved and orientated to be O&M

PROJECT PRESENTSITUATION

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�Customer soundly involved and orientated to be O&M

self-sufficient.

�“As built” revision desirable once the plant project is

completed