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IVMR SIGNED

In-Vessel Melt Retention Severe Accident Management Strategy for Existing and Future NPPs

Total Cost €

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EC-Contrib. €

0

Partnership

0

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 IVMR project word cloud

Explore the words cloud of the IVMR project. It provides you a very rough idea of what is the project "IVMR" about.

vessel    assumptions    estimate    power    bwr    cooling    strategy    reactors    vver    corium    scenarios    1000    ivmr    npp    440   

Project "IVMR" data sheet

The following table provides information about the project.

Coordinator
INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE 

Organization address
address: AV DE LA DIVISION LECLERC 31
city: FONTENAY AUX ROSES
postcode: 92260
website: http://www.irsn.org

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country France [FR]
 Total cost 8˙205˙085 €
 EC max contribution 4˙831˙454 € (59%)
 Programme 1. H2020-Euratom-1.8. (Ensure availability and use of research infrastructures of pan_european relevance)
2. H2020-Euratom-1.3. (Support the development and sustainability of nuclear competences at Union level)
3. H2020-Euratom-1.1. (Support safe operation of nuclear systems)
 Code Call NFRP-2014-2015
 Funding Scheme /RIA
 Starting year 2015
 Duration (year-month-day) from 2015-06-01   to  2019-05-31

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE FR (FONTENAY AUX ROSES) coordinator 803˙180.00
2    KUNGLIGA TEKNISKA HOEGSKOLAN SE (STOCKHOLM) participant 1˙077˙576.00
3    UJV REZ, a. s. CZ (HUSINEC) participant 644˙085.00
4    COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES FR (PARIS 15) participant 550˙120.00
5    JRC -JOINT RESEARCH CENTRE- EUROPEAN COMMISSION BE (BRUSSELS) participant 321˙726.00
6    KARLSRUHER INSTITUT FUER TECHNOLOGIE DE (KARLSRUHE) participant 319˙375.00
7    IMPERIAL COLLEGE OF SCIENCE TECHNOLOGY AND MEDICINE UK (LONDON) participant 125˙905.00
8    ELECTRICITE DE FRANCE FR (PARIS 08) participant 111˙719.00
9    AGENZIA NAZIONALE PER LE NUOVE TECNOLOGIE, L'ENERGIA E LO SVILUPPO ECONOMICO SOSTENIBILE IT (ROMA) participant 108˙750.00
10    INZINIERSKA VYPOCTOVA SPOLOCNOST TRNAVA S.R.O. SK (TRNAVA) participant 98˙125.00
11    HELMHOLTZ-ZENTRUM DRESDEN-ROSSENDORF EV DE (DRESDEN) participant 96˙000.00
12    AREVA NP SAS FR (COURBEVOIE) participant 82˙500.00
13    CENTRUM VYZKUMU REZ S.R.O. CZ (HUSINEC-REZ) participant 80˙000.00
14    Teknologian tutkimuskeskus VTT Oy FI (Espoo) participant 79˙856.00
15    NUCLEAR RESEARCH AND CONSULTANCY GROUP NL (PETTEN) participant 69˙300.00
16    NARODOWE CENTRUM BADAN JADROWYCH PL (OTWOCK) participant 48˙000.00
17    Fortum Power and Heat Oy FI (Espoo) participant 47˙437.00
18    MAGYAR TUDOMANYOS AKADEMIA ENERGIATUDOMANYI KUTATOKOZPONT HU (Budapest) participant 46˙000.00
19    NUBIKI Nuclear Safety Research Institute Ltd. HU (Budapest) participant 45˙000.00
20    INSTITUTE OF NUCLEAR RESEARCH AND NUCLEAR ENERGY - BULGARIAN ACADEMY OF SCIENCES BG (SOFIA) participant 40˙800.00
21    LIETUVOS ENERGETIKOS INSTITUTAS LT (KAUNAS) participant 28˙500.00
22    TRACTEBEL ENGINEERING BE (BRUXELLES) participant 7˙500.00
23    GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH DE (KOELN) participant 0.00

Mappa

 Project objective

The stabilization of molten corium is recognised as essential if a safe and stable state is to be reached following a severe accident. Among the possible options, In-Vessel Melt Retention (IVMR) appears as an attractive solution that would minimize the risks of containment failure (less Hydrogen produced, no corium-concrete interaction), if it can be proved to be feasible. The strategy is already adopted for the VVER 440 type 213 based on thorough research work for the Finnish Loviisa NPP and Hungarian Paks NPP. It is also included in the design of some new Gen.III reactors like AP-1000, APR 1400 and Chinese CPR-1000. It has also been studied in the past for other reactor concepts like KERENA (BWR) or VVER-640. Current approaches for reactors with relatively small power, such as VVER 440 or AP600, use conservative assumptions. However, for higher power reactors (around 1000 MWe), it is necessary to evaluate the IVMR strategy with best-estimate methods in order to address the uncertainties associated with the involved phenomena. Additional R&D is needed to ensure and demonstrate adequate safety margins, including identification of efficient technical solutions for the external cooling of the vessel and performing best-estimate evaluation of relevant scenarios. Among other provisions, the possibility of cooling the corium inside the vessel by direct injection of water into the degraded core, may be considered because it is likely to remove a significant part of the residual power. The goal of the project is an analysis of the applicability and technical feasibility of the IVMR strategy to high power reactors, both for existing ones (e.g. VVER 1000 type 320 units) as well as for future reactors of different types (PWR or BWR). The main outcomes of the project will be elevant assumptions and scenarios to estimate the maximum heat load on the vessel wall, improved numerical tools for the analysis of IVMR issues and a harmonized methodology on the IVMR.

 Work performed, outcomes and results:  advancements report(s) 

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