1.1 Optimization on maint program

7/31/2019 1.1 Optimization on maint program

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CONDITION MONITORING

ON-LINE AUTOMATICO ANALISYS &DIAGNOSIS

STRUCTURAL INTEGRITY

Laboratorio de Vibraciones y Mecatrnica

Centro Atmico Bariloche

Comisin Nacional de Energa Atmica

Repblica Argentina


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The Vibration & Mechatronics Laboratory inthe Bariloche Atomic Center was created in1984 as a part of the National Atomic EnergyAgency, Argentina. It is also a part of theBalseiro Institute academic & research group.

Our lab has provided solutions to industrialvibrations problems in nuclear and otherpower plants for the past 30 years

The laboratory testing capabilities are wideand varied. Additionally we have activeinteraction with academia, nuclear facilitiesand main industrial clients.

Dr. Eng. Oscar Garca Peyrano


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How does the optimization ofmaintenance works?

Automatic Analysis

& Diagnosis System SCADA

EarlyWarning

Optimal Maintenance

Life Extension


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Machine Engineering

Operation Condition

Modeling Techniques

Experience

Simulation(Normal & Failure

Operation)

Expected Response

Benchmarks Alarm Calibration

Analysis


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Measurments

State Matrix

A11,

11

A12,12

A22,21

A22,22

Reference Matrix

= Pattern Recognition

Multivariable Diagnosis / Multiparameter


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Reactor Argentino N6 (RA-6)

Dynamic Analysisof Reactor Internal

Components

Motor-Pump Set

Grid, Grid Support andFuel

Piping

Decay Tank


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Piping

Core

Decay

Tank

PrimaryCoolant CircuitPump

Reactor Internal Components


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Grid, Grid Support & FuelModal Analisys


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Grid, Grid Support & FuelForced response


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Decay Tank Virtual Machine


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Decay Tank Seismic Response


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Life Extension- Fatigue Analisys

STRESS

DURING

OPERATION


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On-Line Diagnosis & ConditionMonitorig

Control Room

Internet, NuclearEngineering Schools & Testing

Laboratories

Knowledge &ExpertiseExchange


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Atucha II Reactor

(CNAII, PHWR)


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Dynamic Compensation

Emergency Coolant Circuit Pump

1. Dynamic Compensator2. Mesure Point


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Emergency Coolant Circuit PumpDinamic Compensation- Results

With the implementation of the dynamic compensator device, the vibration level[RMS] has been reduced from 24 mm/s to 3.2 mm/s. In this condition the machineworks with an appropriate vibration level according it size and power.

The vibration level reduction has been achieved without modifying the structuralintegrity of the machine


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Auxiliary Systems


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Embalse Reactor

(CNE, CANDU-6)


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Turbine and Electric Generator

Dynamic Analisys

End Winding

Steam Turbine


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End Winding & Stator Bars Set

Forced vibration in the End Winding: 100 and 500 Hz oscillatingforces acting on the piece, simulating the excitation of the endwinding on service.

Areas are observed with stress concentrations.


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End Winding Stress Concentration


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Pressure Tubes

Modal Analysis.

Interaction with garter springs.


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Steam Generators

Heat Sink Coolant Pump


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Heat Sink Coolant Pump

Forced response


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Acknowledgements

Comisin Nacional de Energa Atmica

Reactor RA6

Research & DevelopmentGroup, Centro Atmico Bariloche

Nucleoelctrica Argentina SA

Industrias Metalurgicas Pescarmona SA


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Questions?

Documents

1.1 Optimization on maint program