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A Paradigm Shift in Reactor Safety with the Molten Salt Fast Reactor

Objective

Imagine an inherently safe reactor that produces all electricity world-wide for thousands of years, and recycles all actinides until fission.

The Molten Salt Fast Reactor (MSFR) can reach this goal. The cylindrical reactor core contains actinide-fluorides mixed in lithium-fluoride. The liquid salt is at ambient pressure and can freely expand upon heating, giving a strong negative reactivity feedback. The core is in its most reactive state and any geometrical change lead to lower reactivity. In case of hypothetical accidents, the fuel salt will automatically be drained via freeze plugs into fail-safe tanks. The fuel salt is continuously cleaned and controlled in an integrated chemical plant. The MSFR can operate as a breeder reactor in the thorium fuel cycle or as a burner reactor fuelled with plutonium and minor actinides. In short: the MSFR excels in safety, sustainability and optimal waste management.
Within SAMOFAR we will perform advanced experiments to proof the key safety features:
• The freeze plug and draining of the fuel salt
• Measurement of safety-related data of the fuel salt
• New coatings to structural materials like Ni-based alloys
• The dynamics of natural circulation of (internally heated) fuel salts
• The reductive processes to extract lanthanides and actinides from the fuel salt

Furthermore, we will build a software simulator to demonstrate the operational transients, and we will show the mild responses of the MSFR to transients and accident scenarios, using new leading-edge multi-physics simulation tools including uncertainty quantification. All experimental and numerical results will be incorporated into the new reactor design, which will be subjected to a new integral safety assessment method.

The goal of SAMOFAR is to deliver indisputable evidence of the excellent safety features of the MSFR, and to enable a consortium of important stakeholders like TSO’s and industry, to advance with the MSFR up to the Demonstration phase.

Field of science

  • /engineering and technology/materials engineering/coating and films
  • /natural sciences/computer and information sciences/computational science/multiphysics
  • /natural sciences/chemical sciences/inorganic chemistry/inorganic compounds
  • /natural sciences/computer and information sciences/software
  • /social sciences/other social sciences/social sciences interdisciplinary/sustainable development
  • /engineering and technology/environmental engineering/waste management

Call for proposal

NFRP-2014-2015
See other projects for this call

Funding Scheme

RIA - Research and Innovation action

Coordinator

TECHNISCHE UNIVERSITEIT DELFT
Address
Stevinweg 1
2628 CN Delft
Netherlands
Activity type
Higher or Secondary Education Establishments
EU contribution
€ 914 041

Participants (11)

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS
France
EU contribution
€ 1 050 000
Address
Rue Michel Ange 3
75794 Paris
Activity type
Research Organisations
JRC -JOINT RESEARCH CENTRE- EUROPEAN COMMISSION
Belgium
EU contribution
€ 440 913
Address
Rue De La Loi 200
1049 Brussels
Activity type
Research Organisations
Consorzio Interuniversitario Nazionale per la Ricerca Tecnologica Nucleare
Italy
EU contribution
€ 519 111
Address
Via Lambruschini 4A
20156 Milano
Activity type
Research Organisations
INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE
France
EU contribution
€ 92 721
Address
Av De La Division Leclerc 31
92260 Fontenay Aux Roses
Activity type
Research Organisations
CENTRO DE INVESTIGACION Y DE ESTUDIOS AVANZADOS DEL INSTITUTO POLITECNICO NACIONAL
Mexico
EU contribution
€ 0
Address
Avenida Instituto Politecnico Nacional 2508
07360 Mexico
Activity type
Higher or Secondary Education Establishments
AREVA NP SAS

Participation ended

France
EU contribution
€ 0
Address
1 Place Jean Millier Tour Areva
92400 Courbevoie
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
France
EU contribution
€ 99 922
Address
Rue Leblanc 25
75015 Paris 15
Activity type
Research Organisations
ELECTRICITE DE FRANCE
France
EU contribution
€ 148 500
Address
Avenue De Wagram 22
75008 Paris 08
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)
PAUL SCHERRER INSTITUT
Switzerland
EU contribution
€ 44 652
Address
Forschungstrasse 111
5232 Villigen Psi
Activity type
Research Organisations
KARLSRUHER INSTITUT FUER TECHNOLOGIE
Germany
EU contribution
€ 67 812,50
Address
Kaiserstrasse 12
76131 Karlsruhe
Activity type
Higher or Secondary Education Establishments
FRAMATOME
France
EU contribution
€ 89 224
Address
1 Place Jean Millier Tour Areva
92400 Courbevoie
Activity type
Private for-profit entities (excluding Higher or Secondary Education Establishments)