activities in c&i in nuclear field general overview
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Activities in C&I in Nuclear Field General Overview 22nd Meeting of the IAEA Technical Working Group on Nuclear Power Plant Control and Instrumentation, Vienna on May 20-22, 2009. S ROKITA NATIONAL NUCLEAR REGULATOR. Contents. Introduction Licensing Activities - PowerPoint PPT PresentationTRANSCRIPT
Activities in C&I in Nuclear Field Activities in C&I in Nuclear Field
General Overview
22nd Meeting of the IAEA Technical Working Group on Nuclear Power Plant Control and Instrumentation, Vienna on May 20-22, 2009.
S ROKITAS ROKITA
NATIONAL NUCLEAR REGULATOR
ContentsContents
Introduction Licensing Activities New NPPs - future
development MDEP
Licensing activities in the nuclear industry in South Africa concentrates on the following programs:
Koeberg Nuclear Power Station
Nuclear Energy Corporation (NECSA)
Pebble Bed Modular Reactor (PBMR)
Licensing of new Nuclear Power Plant
Introduction Introduction
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
Projects completed to date:
Simulator upgrade
Changes to Reactor Protection System and system testers
Fuel handling system upgrade
Upgrade of instrumentation of the Spent Fuel Pool following installation of high density racks.
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
Projects completed to date:
Digital Turbine Protection and Turbine Control System
Digital AVR system
RGL (Control rods) system upgradeRodPilot section;Control Logic section;Processing Logic section; Control Room interface
Projects currently under way
CP-1 alignment modifications – further modification/safety improvements currently in different stages of implementation (as a result of periodic safety reassessment).
RCP overpressure protection
Station Blackout modifications (SBO and CCF of LHx- essential boards)
Emergency RCP Seal Supply (ESS) New Power supply for ESS (DGs) New Power supply for Train A & B DC systems (DGs)
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
New projects
New Simulator
Relocation of ACACIA Power Station (upgrade of auto start system)
New Fuel Transfer system
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
Control Room HMI
GSE / GRE
Vibration Monitoring
RGL Rod Control
AVR HV Network
Discrete Acquisition
Relaying HV Control Room
Acacia Auto Start
SHY H2 Plant
JDT Fire Detection
KRT Rad. Monitoring
KKO Event Recorder
LHj D/G Monitoring
Drain Down
KRGKPR Panel HMI
Interface Analogue Acquisition
ECCHMI
EDSLAN Application
Historian Level 3 Processing
Flux Mapping
Sub-cooling Monitor
InterfaceInterfaceInterface Interface Interface Interface Interface Interface
Interface InterfaceKRG
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
Koeberg Nuclear Power Koeberg Nuclear Power Station Station
Upgrade of Reactor Protection System of Safari- 1 research reactor further delayed
PBMR Fuel Manufacturing – pilot plant. The First fuel kernels manufactured and currently undergoing testing
PBMR Research facility for fuel irradiation and testing – under development
NECSANECSA
PBMRPBMR
PBMR overall licensing process
In term of the complexity of the PBMR Project a multi
stage licensing approach has been adopted for
licensing the PBMR Reactor
Each stage of the licensing process to be supported by a safety case submitted by the applicant to NNR
First stage is for the approval ( or otherwise) of the site preparation and construction phase
Licensing schedule has been updated by Eskom – original first stage (construction) was expected towards first quarter of 2007
PBMRPBMR
CURRENT STATUS OF LICENSING ACTIVITIES
The development of initial design of single loop
helium cooled 400MWth plant has been put “on
hold”. All efforts now to complete all outstanding
licensing issues The NNR received a proposal for licensing of new
design of 2 and 3 loops helium/steam cooled
reactor. Discussion taking place on licensing approach for
new design (design certification process).
MDEP InitiativeMDEP Initiative
MDEP – Multinational Design Evaluation Programme
Initiative of US NRC Stage 2 – Establish referenced regulatory practices
and regulations to enhance safety of new designs - existing design specific working groups (AP-1000,
EPR). - The NNR proposed new High temperature Gas
Cooled Reactors working group - Issue specific working group – Digital
Instrumentation & Control Stage 3 – implementation of outcome of stage 2 in
review of generation IV designs
New NPPNew NPP
Future development
In 2006 South African Government announced plans for second Nuclear Power Station.
Nuclear Power Plant with capacity of 3 000 MW will be built in the southern part of the country by Eskom.
2 x EPR 1600 or 3 x AP-1000 units have been considered – tendering process was completed and outcome presented to Eskom Board.
Due to bad political climate and development on international financial market Eskom Board decided to shelf current project.
New NPPNew NPP
Future development
Nuclear Sitting Project currently under way in preparation for future nuclear programme expansion
NNR is involved with licensing of 3 nuclear sites.
South African Government set-up a committee to evaluate different reactor designs
New NPPNew NPP
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Kronos
Aries
Helios
Juno
Aurora
Koeberg
Philippi
Muldersvlei
BacchusProteus
Droerivier
HydraGariep
Van der Kloof
Aggeneis
Poseidon
Grassridge
Beta
Key
400kV substation
Hydro-Electric station
Gas turbine station
Nuclear station
400kV line
765kV line
Acacia
PalmietAcacia
Pumped storage scheme
Perseus
Recommendations to the IAEA on future activities
Cooperation/information exchange with MDEP WG. (outcome of comparison of IEC/IEEE standards,
countries common position on software common cause failure, software tools, software V&V). Not all TWG members have an access to MDEP library
Quantification of Software Reliability Licensing, qualification requirements, acceptance
criteria of COTS systems used in important to safety but not safety related systems
Classification of I&C systems/components for new designs