wp4 plant operation, instrumentation, control and protection system design
DESCRIPTION
WP4 PLANT OPERATION, INSTRUMENTATION, CONTROL AND PROTECTION SYSTEM DESIGN. LEADER. F. Rivero May 9th 2013, Genoa. Deliverables. M08 → Conceptual definition of the control and protection functions and its architecture → M34 → January 2013. 2010. 2011. 2012. Schedule. 2013. - PowerPoint PPT PresentationTRANSCRIPT
WP4WP4PLANT OPERATION, PLANT OPERATION,
INSTRUMENTATION, CONTROL AND INSTRUMENTATION, CONTROL AND PROTECTION SYSTEM DESIGNPROTECTION SYSTEM DESIGN
LEADERLEADER
F. RiveroF. Rivero
May 9th 2013, Genoa May 9th 2013, Genoa
2May 9th 2013, Genoa
Deliverables
Task Document Title
4.1 D14 Normal, transient and accidental operational modes:
control and protection functions identification
4.2 D06 State of the art Instrumentation and Control Survey
4.3 D20 Instrumentation Specifications
4.4D21M08
Preliminary definition of the control architecture
M08 → Conceptual definition of the control and protection functions and its architecture → M34 → January 2013
3May 9th 2013, Genoa
Schedule
Task 4-2 → DEL06 “State of the art Instrumentation and Control Survey”
Task 4-1 → DEL14 “Normal, transient and accidental operational modes: control and protection functions identification”
Task 4-3 → DEL20 “Instrumentation Specifications”
Task 4-4 → DEL21 “Preliminary definition of the control architecture”
2010 2011 2012 2013
4May 9th 2013, Genoa
WP4 Work Program
Deliverables
Tasks responsible
Schedule
Documents indexes
Chapters responsible
Chapters participants
Input data
5May 9th 2013, Genoa 5
Task 4-1: Normal, transient and accidental operational modes: functions identification
D14 Normal, transient and accidental operational modes: control and protection functions identification
Revision 1 / Final (October 2012)
Objectives Definition of the operational modes and
parameters or functions to be controlled
Schedule: November 2012
Activities Plant operation procedures involving both
primary and secondary systems Perform the conceptual design of the plant
control and protection systems
CIRTEN, EA, SCKCEN
6May 9th 2013, Genoa 6
Identification of functions for plant control and protection
Protection functions: Basically: automatic and manual initiation of reactor trip (RT) and engineered safety features (ESFs)
Post-accident functions: Basically: automatic and manual control of the ESFs necessary to reach a safe shutdown state during the
first 24 h from the beginning of the event
Control and limitation functions Control of lead temperature at core outlet by means of CRs Limitation of reactor power Control of lead temperature at SG outlet Control of feedwater temperature Control of oxygen concentration in the coolant Control of turbine speed
Other I&C funtions Severe accident functions: Severe accident monitoring Risk reduction functions: Mitigation of ATWS and software common cause failures by means of a diverse
actuation of reactor trip Management of priority and actuation control functions: Management of priority of actuator commands,
Monitoring and protection of the actuators, Interlocks, Etc. HMI functions: Alarm display and processing functions, Data archiving and processing functions
7May 9th 2013, Genoa 7
Basic structure of I&C architecture
For each function Safety classification according to EUR Identification of plant parameters to be measured Define interventions of the I&C systems to counteract
Definition of a digital I&C architecture organized on 4 levels Level 0: Process Interface Level (Sensors and actuators) Level 1: System Automation Level (Closed loop and open loop controls) Level 2: Unit Supervision and Control Level (Data processing for HMI) Level 3: Site Management Level (no direct influence on plant behaviour)
8May 9th 2013, Genoa 8
Basic structure of I&C architecture
9May 9th 2013, Genoa
Task 4-2: State of the art I&C survey
D06 State of the art I&C Survey
Revision 1 (December 2012)
Objectives Evaluate the applicability of available I&C
equipment to the LFR operational needs Identify future R&D needs in the field of
I&C
Activities Collect information in relation with the lead
technology Identify needs (instruments and control
devices) Contact companies
EA, SCKCEN
10May 9th 2013, Genoa 10
Core monitoring instrumentation survey
Main parameter related to core: neutron flux (+ change rate) Low-level neutron flux monitoring during critical approach and start-up phase Fast neutron flux change measurement (anywhere) for trip signal in case of sudden
reactivity increase In-core neutron detection at various positions for neutron flux mapping (radially –
axially)
Fission chambers. Temperature mostly specified up to 250°C, 300°C, 350° models exist up to 500-600°C (e.g. Photonis CFUE22-32-42-43, CFUC06-07, used in
PHENIX, SPX)
Self-powered neutron detectors Typically applied for thermal neutron detection Thermocoax, KWD Nuclear Instrum. AB, Mirion Technol. – IST,…
11May 9th 2013, Genoa 11
Primary coolant instrumentation survey
Temperature Thermocouple protected with a thermowell resistant to corrosion Similar experiences in metallurgic sector or molten aluminum
Thermo-Couple Products Co. (Marsh Bellofram Group) Pyrosales Pty Ltd Termo Kinectics
Level Radar to avoid physical contact with lead Support high temperature Emerson / Aplein Ingenieros. Model: TankRadar Pro Steel
Metallurgical applications and molten salts Used to measure level in molten salts Temperature at antenna: up to 1000 ºC
Vega, Model: Vegapuls 68, Endress Hauser. Model: FMR230 M MBA instruments. Model: MBA400
12May 9th 2013, Genoa 12
Primary coolant instrumentation survey
Pressure Capacitive transmitter with a seal Used in hot temperature or highly corrosive processes Temperature limitation due to fill fluid Fill fluid: Sodium-potassium alloy (NaK), high temperature up to 700 - 800 ºC Creative Engineers Inc, MTI Instruments
Flow Elbow flow meter in pumps output Differential pressure transmitter connected to the elbow with a diaphragm seal filled with Sodium-
potassium alloy (NaK) Creative Engineers Inc, MTI Instruments
Oxygen Analyzers Electrochemical cells of YSZ (Yttria Stabilized Zirconia) Excellent oxidation/corrosion resistance High temperature No COTS available
13May 9th 2013, Genoa
Task 4-3: Instrumentation Specification
D20 - Instrumentation specifications
Revisio 0 (December 2012)
Objectives Instrument Specifications
Activities Prepare the design specification of the
instruments and control devices
Schedule: January 2013
EA, ENEA, INR, SCKCEN
14May 9th 2013, Genoa 14
Core and Primary coolant instrumentation
Ex-core / In-core neutron flux detector configuration
Technical and design requirements for Primary coolant instrumentation Temperature Pressure Level Flow Oxygen concentration Steam concentration in cover gas
Qualification requirements following IEC 60780
Safety Rods
In-core Detector (3 elevations)
Fuel Assembly
Control Rods
Dumy Element
Close-to-core Detector (top to bottom)
15May 9th 2013, Genoa 15
Secondary Coolant. Pressure
Steam generator
input (1, 2…8)
Condensate
pumps output (1 & 2)
Steam generator
output (1, 2...8)
Deareator
HPT input LPT input By-pass valve
input
Feedwater pumps output (1 & 2)
16May 9th 2013, Genoa 16
Secondary Coolant. Temperature
Steam generator
output (1, 2...8)
Feedwater line
By-pass valve
outputMain steam line
Steam generator
input (1, 2…8)
Auxiliary
heater input
Deareator input bypass line
17May 9th 2013, Genoa 17
Secondary Coolant. Flow
Feedwater line
Attemperation
valve input
18May 9th 2013, Genoa 18
Secondary Coolant. Level
FWTC Heater
Deareator
Condenser
Preheaters (1, 2. . .6)
19May 9th 2013, Genoa
Radiation Monitoring
•Fuel Intermediate Storage •Equipment Hot Cell•Spent Fuel Hot Cell•Spent Fuel Storage Building
Area Radiation Monitoring
Main Control Room intake air
Plant vent exhaust
Containment air
Process Radiation Monitoring
20May 9th 2013, Genoa
Task 4-4: Preliminary definition of the Control Architecture
D21 - Preliminary definition of the Control Architecture (Milestone M08)
Revision 0 (January 2013)
Objectives Define the conceptual European Lead Cooled Fast
Reactor control and operation philosophy to maintain the reactor in operable and safe conditions
Activities Define the control architecture to perform
Schedule: January 2013
ANSALDO, CIRTEN, EA, INR, SCKCEN
21May 9th 2013, Genoa
Plant model
22May 9th 2013, Genoa
Full power control scheme
0 1000 2000 3000 4000 5000265
270
275
280
285
290
295
300
305
Time [s]
Pow
er [
MW
]
0 1000 2000 3000 4000 5000179.4
179.5
179.6
179.7
179.8
179.9
180
180.1
180.2
Time [s]
Pre
ssur
e [b
ar]
1000 2000 3000 4000 5000 6000 7000 8000 9000 100000399.5
400
400.5
401
401.5
Time [s]
T c
old
leg
[°C
]
0 1000 2000 3000 4000 5000 6000449.6
449.8
450
450.2
450.4
450.6
450.8
451
451.2
451.4
Time [s]
T S
team
[°C
]
Pressure
Cold leg
Temperature
ReactorPower
Steam Temperature
POWER LEVEL REDUCTION: 10 %
0 1000 2000 3000 4000 5000265
270
275
280
285
290
295
300
305
Time [s]
Pow
er [
MW
]
0 1000 2000 3000 4000 5000179.4
179.5
179.6
179.7
179.8
179.9
180
180.1
180.2
Time [s]
Pre
ssur
e [b
ar]
1000 2000 3000 4000 5000 6000 7000 8000 9000 100000399.5
400
400.5
401
401.5
Time [s]
T c
old
leg
[°C
]
0 1000 2000 3000 4000 5000 6000449.6
449.8
450
450.2
450.4
450.6
450.8
451
451.2
451.4
Time [s]
T S
team
[°C
]
Pressure
Cold leg
Temperature
ReactorPower
Steam Temperature
POWER LEVEL REDUCTION: 10 %
23May 9th 2013, Genoa
Reactor start-up and coordination with the full power mode