Korea Nuclear Power Plants and Technology

Transcription

1 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 Korea s nuclear technology self-reliance and followup 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 company s 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, 6 Oct

2 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

3 Contents 1 Korean Nuclear Technology Development 2 Key Design Features of APR Countermeasures for Severe Accidents 4 Summary 1

4 Korean Nuclear Technology Development 2

5 Our Nuclear Reactors Today & Tomorrow Technology Self-Reliance Design Standardization Improvements Innovations 5 th Phase : Gen IV 1 st Phase : Gen II Turn-key base 600 MWe 2 nd Phase : Gen II Standardization (KSNP) Optimization (OPR1000) 3 rd Phase : Gen III Evolutionary PWRs - APR SMART(100MWe) 4 th Phase : Gen III + Evolutionary PWRs - APR + (1500MWe) with improved Economics and Safety - ipower Revolutionary - SFR : U recycle and waste minimization - VHTR : Hydrogen production 1970s 1980s 1990s 2000s 2010s 2020s 2030s 3

6 Strategy for Large NPP Developments 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 US-APR Future NPPs ipower APR+ APR1400 OPR1000 APR1000 EU-APR 4

7 Extensive Validation Testing for ADFs 5

8 Design Verifications for International Market EUR Certification of EU-APR US NRC Design Certification of US-APR 6

9 Key Design Features of APR1400 7

10 Design Goals SAFETY Core Damage Frequency Containment Failure Frequency Seismic Design Basis Occupational Radiation Exposure < 10-5 /RY < 10-6 /RY 0.3 g < 1 Man Sv/RY 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 (N th unit) 8

11 Plant Layout 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 9

12 Reactor Coolant System 10

13 Safety Systems SIP SIP SIT SIT RWST SIT SIT RCP RCP LPSIP RCP RCP IRWST S/G RV S/G HPSIP S/G RV S/G CONTAINMENT RCP RCP HPSIP RCP RCP SIT Sump SIT LPSIP SIP SIT SIT SIP CONTAINMENT 11

14 Human-Machine Interface System 12

15 Countermeasures for Severe Accidents 13

16 Prevention & Mitigation of Severe Accident 14

17 Protection from External Hazards * EF : Enhanced Fujita scale of Tornado 15

18 Post-Fukushima Safety Enhancements 16

19 Summary 17

20 Korean Nuclear Technology - Safe and Reliable 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 18

21 Thank You! 19