SFR systems R&D activities

Robert HillChair of SFR-SSC

EG meeting

May 26, 2020

Webinar

Slide 2

Arrangements (Feb. 2020)Effective since AUS CA EU FR JP CN KR ZA RU CH UK US

VHTR SA Extended X X X X X X X X X

HP PA 19-Mar-08 / Ext X X X X S X O X

FFC PA 30-Jan-08 / Ext. X X X X X O X

MAT PA 30-Apr-10 Amd. S X X X X X X O X

CMVB PA Prov – PP ready P P P P O P

SFR SA Extended X X X X X X X X

AF PA (II) 18 April 2018 X X X X X X O X

GACID PA 27-Sep-07 / Exp. X X X

CDBOP PA 11-Oct-07 / Ext. O X X O X O O X

SO PA 11-Jun-09 / Ext. X X X X X X O O

SIA PA 22-Oct-14 X X X X X X O X

SCWR SA Extended X X X X X

M&C PA 6-Dec-10 X X O X O

TH&S PA 5-Oct-09 / Ext. X X O X O

SIA PA Provisional P P P P P

GFR SA Extended X X X

CD&S PA 17-Dec-09 / Ext. X X

FCM PA Provisional P P P

LFR MOU no limit X X O X X X X

MSR MOU no limit X O X X O O O X X XX = SIGNATORY P = PROVISIONAL PARTICIPANT O = OBSERVER S = SIGNATURE PROCESS ONGOING

Signed recently Exp: expired / Ext: extended / Amd: AmendmentTo be extended

Slide 3May 2020

Generation-IV SFR Project Arrangements

• System Integration and Assessment (2014)

• Safety and Operations (2009)

– Extended (10 years) in 2019

• Advanced Fuel (2007)

– Phase I through 2017, Phase II restarted in 2018

• Component Design and BOP (2007)

– Extended (10 years) in 2017

Slide 4May 2020

System Integration & Assessment Project

Slide 5May 2020

System Integration & Assessment Project

France (CEA)

Japan (JAEA)

Korea (KAERI)

US (USDOE)

Project Objectives

• Integration of the results of R&D Projects

• Performance of design and safety studies

• Assessment of the SFR System against the goals and criteria set out

in the Gen IV Technology Roadmap

Members

EURATOM (JRC)

China (CIAE)

RF (Rosatom)

Slide 6May 2020

Small ModularLOOP

POOL

KALIMER - KAERI

JSFR - JAEAAFR-100 - USDOE

ESFR - Euratom

Primary

Pump/IHX

Reactor Vessel

SG

Secondary Pump

IHX

DHX

PHTS pump

Reactor core

Steam Generator

AHX Chimney

PDRC piping

In-vessel core catcher

IHTS piping

IHTS pump

IHX

DHX

PHTS pump

Reactor core

Steam Generator

AHX Chimney

PDRC piping

In-vessel core catcher

IHTS piping

IHTS pump

BN-1200 - ROSATOM

SIA Project Gen-IV SFR Design Tracks

Slide 7May 2020

Safety & Operations Project

10

Plans for 2020

WP SO 1 – Methods, models and codes

WP SO 2 – Experimental programs and

operational experiences

WP SO 3 – Studies of innovative design and

safety systems

11

KAERI – Benchmark analysis for PHENIX and EBR-II tests using MARS-LMR code

Benchmark analysis for PHENIX and EBR-II tests using MARS-LMR code

Safety analysis of MARS-LMR for PHENIX dissymmetric and EBR-II BOP tests benchmarks.

Analysis results will be used for 2020 SO PMB common projects

MARS-LMR modeling for PHENIX and EBR-II

PHENIX PHTS and IHX EBR-II

12

WP SO 2 – Experimental programs and

operational experiences

Deliverable: Standard procedures for Na

loop operation and measurements

treatment methodologies

Provided by: H-2020 ESFR-SMART PROJECT

Schedule: Dec. 2020

Euratom: Standard procedures for Na loop operation and

measurements treatment methodologies

13

JAEA - Fundamental Safety Strategy against Severe Accidents on Prototype Sodium-Cooled Fast Reactor

Typical safety functions of prototype SFR

SG

AC

IHX

Reactor Vessel

CoreMaintenance Cooling System (MCS)

AC exitmain valve

AC blower

by-pass valve

Heat dissipation to the air

to turbine

from turbine

AC

Heat dissipation to the air

IHX

3 loops of heat transport system

Air Cooler

PrimaryHeatTransportSystem(PHTS)

SecondaryHeatTransportSystem(SHTS)

Backup reactorshutdown system

Main reactorshutdown system

Auxiliary Cooling System (ACS)

• It is recognized that the safety measures against Severe Accidents

should be prepared considering safety characteristics of prototype SFR.

• The objective is to develop fundamental safety strategy against SAs in

order to propose such safety measures.

Slide 14May 2020

Advanced Fuels Project

Slide 15May 2020

Advanced Fuel Project

France (CEA)

Japan (JAEA)

Korea (KAERI)

US (USDOE)

Project Objectives:

• Selection of high burn-up MA bearing fuel(s), cladding and wrapper withstanding

high neutron doses and temperatures.

• Candidates:

Driver fuels (Oxide, Metal, Nitride & Carbide)

Inert Matrix fuels & MA Bearing Blankets

Core materials: Ferritic/Martensitic & ODS steels

• Scopes :

Fabrication

Behavior under irradiation

Members

EURATOM (JRC)

China (CIAE)

RF (Rosatom)

• BEIS (UK) has proposed Fuel R&D contributions to join Project

Slide 17May 2020

Component Design & Balance Of Plant Project

Slide 21

2020 Work Plan of CD&BOP - 1

[ISI&R]

Water experiments done for non destructive examination

behind screens(CEA)

Development of very small Eddy current sensors in view

of the examination of sodium gas compact heat

exchanger (CEA)

Imaging tests of under sodium viewer in sodium

environment(JAEA)

Performance test of under sodium viewer in actual plant

(JAEA)

Under-sodium performance demonstration of the plate-

type ultrasonic waveguide sensor (KAERI)

Slide 22

2020 Work Plan of CD&BOP - 2

[AECS]

Current understanding of sodium-CO2 interactions based mainly

upon data and results from SNAKE experiments (DOE)

[SG]

Sodium water reaction in open or semi-open volume (CEA)

Applicability evaluation of mechanistic sodium-water reaction

analysis code (JAEA)

Performance test of inspection system for a single-walled tube of

a Rankine-type SG (KAERI)

[O&TF]

Progress report on development of advanced instrumentation

techniques for liquid sodium applications(KAERI)

Design and construction of intermediate-scale sodium testing

facility (DOE)

Slide 23

Study of ISI&R technologies - 1

[CEA]

Water experiments done for non destructive examination

behind screens

Objectives:

– Demonstrate the capability of NDT from the outside of vessel

with purposes of telemetry, defects detection and location within

immersed structures…

– Use of Leaky Lamb Waves

– First step 2019 : establishment of models in order to properly

represent the behavior of Leak Lamb Waves in plates.

» Modelling proposal was done

» First simulation results are in good agreement with literature

results

» First experimental set-up

has been prepared

– Second step 2020:

water experiments and results

– Comparison to simulation

with 2

plates

Slide 24

Study of AECS Concept - 3

[DOE]

In 2020, assess and prepare a report summarizing what has

been learned about sodium-CO2 interactions and sodium-CO2

reaction products based mainly upon data and results from the

SNAKE sodium-CO2 interaction experiments carried out at

Argonne National Laboratory

Example of sCO2 injection through semicircular channel into sodium pool

simulating CO2 from failed heat exchanger channel entering sodium header

Slide 25

Study of sodium operation technology and new sodium testing facilities - 1

[KAERI] On-site installation of STELLA-2 has been completed(Test section, related instrumentation, insulation, pre-test, etc.)

• Commissioning (start-up test, Apr. 2020 ~) / Main test (Sep. 2020 ~ )

Development of advanced sodium leak detection system

− Construction (~’19) and shakedown tests (~’20 Mar.)

• WALSUM (Water-mockup test for Advanced Leak Simulation and Upgraded Monitoring system)

• SELAAD (Sodium Experimental Loop for Advanced Aerosol Detection)

− Development of advanced sodium instrumentation techniques

• High-temp. segmental wedge flowmeter using pressure transmitters

• Temp.-compensated pressure (TCPT) & level (TCLT) transmitters

< WALSUM >

< SELLAD >

< Flowmeter test > < TCPT fabrication > < TCLT fabrication >

Slide 26May 2020

Thank you for your kind attention!