Korea Nuclear Power Plants and ?· ANA2017 Conference, Sydney, 6 Oct 2017 9 Presentation 5 – Session…

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  • ANA2017 Conference, Sydney, 6 Oct 2017 9

    Presentation 5 Session 2

    Korea Nuclear Power Plants and Technology

    Byung Jin LEE, Ph.D

    KEPCO Engineering & Construction Company

    Biography

    Majoring in Nuclear Engineering, Byung Jin Lee

    received his Ph.D. degree from KAIST in Korea. He

    has an experience of 30 years in nuclear power plant

    design, starting his career at Korea Atomic Energy

    Research Institute and now working at KEPCO-E&C.

    He participated in the development of OPR1000,

    APR1400 and APR+ reactors, and is now working on

    a future advanced nuclear reactor development project.

    Abstract

    This presentation will start with a brief history of

    Koreas nuclear technology self-reliance and follow-

    up efforts for evolution. Key design features of

    APR1400 will be introduced together with major

    enhancements to avoid or cope with severe accidents

    like that occurred in Fukushima.

    The KEPCO Engineering & Construction Inc (KEPCO E&C) was founded in 1975 with the goal of accomplishing self-reliance in power plant engineering technology.

    The company focuses on reactor technology and design as well as technology support for the NPPs in operation. KEPCO E&C, with over 4,000 employees in total of which 1,800 are involved in the companys nuclear business. KEPCO A&E has designed 22 nuclear power plants.

    In 2009, KEPCO E&C participated in the bid to win a nuclear power plant project in Barakah, UAE, for the first exportation of Korean-model nuclear power plant, and are performing A/E (Architect Engineering) and NSSS (Nuclear Steam Supply System) Design for the four APR1400 being constructed at Barakah. In addition, from 2016, KEPCO E&C is participating in the engineering of a SMART nuclear power plant, which is a small to mid-sized nuclear power plant, to export to Saudi Arabia.

  • ANA2017 Conference, Sydney, NSW

    06 October 2017

    LEE, Byung Jin

    This document is the property of

    KEPCO E&C and the use of this information is

    strictly prohibited without the permission of KEPCO E&C

  • Contents

    1 Korean Nuclear Technology Development

    2 Key Design Features of APR1400

    3 Countermeasures for Severe Accidents

    4 Summary

    1

  • Korean Nuclear Technology Development

    2

  • Our Nuclear Reactors Today & Tomorrow

    3

    1970s 1980s 1990s 2000s

    1st Phase : Gen II2nd Phase : Gen II

    3rd Phase : Gen III

    5th Phase : Gen IV

    Turn-key base

    600 MWe

    Standardization

    (KSNP)

    Optimization

    (OPR1000)

    Evolutionary

    PWRs- APR1400

    - SMART(100MWe)

    Revolutionary- SFR : U recycle and

    waste minimization

    - VHTR : Hydrogen

    production

    4th Phase : Gen III+

    Evolutionary

    PWRs- APR+(1500MWe)

    with improved

    Economics and Safety

    - iPOWER

    2020s 2030s2010s

    Technology Self-Reliance

    Design Standardization

    Improvements

    Innovations

  • Strategy for Large NPP Developments

    4

    Unending Improvements to Stay Competitive

    Optimization to improve economics

    Based on experience of steady constructions and operation over 40 years

    Advanced Design to enhance safety and operational flexibility

    Up-to-date Safety Requirements (Korea, USA, IAEA, UAE)

    Utility Requirements (domestic & world-wide: KURD, EPRI URD, EUR)

    Flexible Response to Market Demands

    Diversifying Portfolio

    APR1400 / EU-APR / US-APR

    APR+

    APR1000

    iPOWER

    Diversifying Applications

    Electricity, Desalination

    APR1400

    APR+

    EU-APR

    APR1000

    iPOWER

    Future NPPs

    OPR1000

    US-APR

  • Extensive Validation Testing for ADFs

    5

  • Design Verifications for International Market

    6

    EUR Certification of EU-APR

    US NRC Design Certification of US-APR

  • Key Design Features of APR1400

    7

  • Design Goals

    8

    Gen-III NPP

    PERFORMANCE / ECONOMY

    Thermal Margin > 10 %

    Plant Availability > 90 %

    Unplanned Trip < 0.8/RY

    Plant Capacity (Gross) 1,455 MWe

    Plant Lifetime 60 Years

    Refueling Cycle 18 Months

    Construction Period 48 Months (Nth unit)

    SAFETY

    Core Damage Frequency < 10-5/RY

    Containment Failure Frequency < 10-6/RY

    Seismic Design Basis 0.3 g

    Occupational Radiation Exposure < 1 ManSv/RY

  • Plant Layout

    9

    Economics

    Twin-unit arrangement & Compound building shared by two units

    Seismic resistance

    Common basemat for containment and auxiliary building

    Physical Separation

    Four-quadrant arrangement of safety systems

  • Reactor Coolant System

    10

  • Safety Systems

    11

    Sump

    CONTAINMENT

    SITSIT

    SIT SIT

    S/G RV S/G

    RCP RCP

    RCP RCP

    RWST

    HPSIP

    LPSIP

    HPSIP

    LPSIP

    CONTAINMENT

    SITSIT

    SIT SIT

    S/G RV S/G

    SIP

    SIP

    SIP

    SIP

    IRWSTRCP

    RCP

    RCP RCP

  • Human-Machine Interface System

    12

  • Countermeasures for Severe Accidents

    13

  • Prevention & Mitigation of Severe Accident

    14

  • Protection from External Hazards

    15

    * EF : Enhanced Fujita scale of Tornado

  • Post-Fukushima Safety Enhancements

    16

  • Summary

    17

  • Korean Nuclear Technology - Safe and Reliable

    18

    Proven and improved through accumulated experience of steady constructions and

    operation of 40 years

    APR1400, Evolutionary ALWR

    Advanced design features for safety and operational flexibility

    Reinforced design for severe accident mitigation

    Complying with global standards of Korea, USA, UAE, EU and IAEA

    One and only Gen-III NPP now in operation

    Five (5) more units under construction in Korea, and 4 units in the UAE

    Our innovation continues.

    APR+

    iPOWER

  • Thank You!

    19

    Byung Jin Lee.pdf (p.1)2. Korean NPPs and Technology_rev.01_bjlee_2017.10.06.pdf (p.2-24)

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