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INcreasing Safety in NPPs by Covering gaps in Environmental Fatigue Assessment

INcreasing Safety in NPPs by Covering gaps in Environmental Fatigue Assessment

Objective

INCEFA-PLUS delivers new experimental data and new guidelines for assessment of environmental fatigue damage to ensure safe operation of European nuclear power plants.

Austenitic stainless steels will be tested for the effects of mean strain, hold time and material roughness on fatigue endurance. Testing will be in nuclear Light Water Reactor environments. The three experimental parameters were selected in the framework of an in-kind project during which the current state of the art for this technical area was developed. The data obtained will be collected and standardised in an online fatigue database with the objective of organising a CEN workshop on this aspect.

The gaps in available fatigue data lead to uncertainty in current assessments. The gaps, will be targeted so that fatigue assessment procedures can address behaviour under conditions closer to normal plant operation than is currently possible. Increased safety can thus be assured.

INCEFA-PLUS also develops and disseminates a modified procedure for estimating environmental fatigue degradation. This will take better account of the effects of mean strain, hold time and surface finish. This will enable better management of nuclear components, making possible the long term operation (LTO) of NPPs under safer conditions.

INCEFA-PLUS is relevant to the NFRP1-2014 programme because:

• Present guidance originates from NRC. In Europe various national programmes aim to develop counter proposals allowing greater operational efficiency with at least comparable safety assurance. INCEFA-PLUS brings these programmes together through which a strong EU response to the NRC methodology will be obtained with improved safety assurance through increased lifetime assessment reliability.
• INCEFA-PLUS improves comparability of data from EU programmes because partner laboratories will do some tests on a common material under common conditions. Reduced assessment uncertainty will enable easier maintenance of safety

Coordinator

WOOD NUCLEAR LIMITED

Address

Chelford Road Booths Hall
Wa16 8qz Knutsford

United Kingdom

Activity type

Other

EU Contribution

€ 481 324

Participants (15)

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PREUSSENELEKTRA GMBH

Germany

PAUL SCHERRER INSTITUT

Switzerland

EU Contribution

€ 125 000

UJV REZ, a. s.

Czechia

EU Contribution

€ 74 662

STUDIECENTRUM VOOR KERNENERGIE / CENTRE D'ETUDE DE L'ENERGIE NUCLEAIRE

Belgium

EU Contribution

€ 332 397

Teknologian tutkimuskeskus VTT Oy

Finland

EU Contribution

€ 119 550

LIETUVOS ENERGETIKOS INSTITUTAS

Lithuania

EU Contribution

€ 41 263

CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIOAMBIENTALES Y TECNOLOGICAS-CIEMAT

Spain

EU Contribution

€ 100 000

INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE

France

EU Contribution

€ 85 050

UNIVERSIDAD DE CANTABRIA

Spain

EU Contribution

€ 198 125

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

France

EU Contribution

€ 39 000

JRC -JOINT RESEARCH CENTRE- EUROPEAN COMMISSION

Belgium

EU Contribution

€ 326 806

AREVA NP SAS

France

EU Contribution

€ 82 500

ELECTRICITE DE FRANCE

France

EU Contribution

€ 395 770

INESCO INGENIEROS SL

Spain

EU Contribution

€ 148 681

ROLLS-ROYCE POWER ENGINEERING PLC

United Kingdom

Project information

Grant agreement ID: 662320

Status

Ongoing project

  • Start date

    1 July 2015

  • End date

    30 June 2020

Funded under:

H2020-Euratom-1.8.

H2020-Euratom-1.3.

H2020-Euratom-1.1.

  • Overall budget:

    € 6 140 668,75

  • EU contribution

    € 2 550 128

Coordinated by:

WOOD NUCLEAR LIMITED

United Kingdom