Ageing management considerations in mechanical codes and standards

The NEA in collaboration with the Japanese Nuclear Regulatory Authority (NRA) will host an international workshop on 28-29 June 2023 on the topic of Ageing management considerations in mechanical codes and standards.

Objectives

The objectives of the workshop are to provide better understanding of the global framework and to initiate discussion between stakeholders to enable a better consideration of ageing phenomena in codes and standards. The workshop will bring together regulators and stakeholders, including representatives from the industry and other international organisations, to share information and discuss the challenges related to ageing phenomena in mechanical codes and standards, for both existing fleet but also for nuclear new builds and small modular reactors (SMRs).

Scope and sessions

High-level national and international experts from a wide range of stakeholders will share their experiences and views during the four sessions of the workshop:

  1. National regulatory requirements related to ageing phenomena on reactor coolant pressure boundary;
  2. Code requirements on RCPB to address/prevent ageing;
  3. Operation experiences related to ageing phenomena on RCPB;
  4. Challenges of ageing phenomena in C&S applied to SMRs/AMRs
Programme

Day 1 - 28 June 2023, from 09:00

Welcome and registration  
Opening Rremarks

Tomoya ICHIMURA (NRA, Japan)

Seiji ASADA (MHI)

Session 1: Comparison of national regulatory requirements related to ageing phenomena on reactor coolant pressure boundary (RCPB)

Introduction

David Rudland (US NRC)

Regulatory requirements in Korea

Sangmin Lee (KINS, Korea)

Regulatory requirements in Czech Republic

Jolana Rydlova (SUJB, Czech Republic)

Regulatory requirements in Japan

Haruko Sasaki (NRA, Japan)

Regulatory requirements in France

Rachel Vaucher (ASN, France)

Regulatory requirements in United States

David Rudland (US NRC)

 

Q/A session and panel discussion

Session 2: Discussion on code requirements on RCPB to address/prevent ageing phenomena

Introduction

Ronan TANGUY (WNA Cordel)

Code requirements in ASME

Paul DONAVIN (ASME)

Code requirements in JSME

JSME

 

speakers to be confirmed

 

Q/A session and Panel Discussion

End of Day 1

 

Day 2 - 28 June 2023, from 09:00

Welcome and registration  
Session 3: OPEX related to ageing phenomena on RCPB

Introduction

Yinsheng Li (JAEA, Japan)

SCC in France

Rachel VAUCHER (ASN, France)

SCC in Japan

Takumi Terachi - ATENA (KEPCO)

 

Do Jun Shim (EPRI)

Fatigue phenomena

Paul R. Donavin (Becht Engineering)

Radiation embrittlement

Takatoshi Hirota (Mitsubishi Heavy Industry)

 

Q/A session and Panel Discussion

Session 4: Challenges of ageing phenomena in C&S applied to SMRs/AMRs

Introduction

Mr Suqiang XU (CSNC, Canada)

  speakers to be confirmed
Closing session: Harmonisation discussion
Panel discussion  
Conclusion Seji ASADA (MHI)

End of Day 2