Objective
The overall objective of this three year project is to provide an extensive database on the chemical identities (speciation) and kinetics ,of release of fission products evolved from irradiated fuel during a variety of severe reactor accident conditions. This experimental work would be integrated with theoretical studies to improve modelling capabilities in this area. Approximately 20 experiments are proposed to examine the release of fission products and other reactor materials from highly-irradiated fuel heated under a range of atmospheres to temperatures up to 2400°C. Mass spectrometry would be used to quantify the release rates and chemical forms of the major fission products. This technique would be supported by gamma-ray spectroscopy and thermal gradient tube/aerosol analysis methods to provide additional data. The main variables of the experimental programme will be maximum temperature and rate of increase, pressure (from near-vacuum to 1 bar), oxygen potential (including steam, air and hydrogen - in particular a number of experiments will be conducted under oxidizing conditions where the database is limited), and the effects of fuel, cladding and other core materials. Further separate-effect experiments will also be conducted to establish the role of pressure (up to 35 bar) on the release and aerosol characteristics.
These experiments will be integrated with developments of theoretical models in order to test and validate the fission product release codes. The work will enable the models for fission product release under oxidizing conditions, high pressures and from molten pools to be developed and tested. In this manner, the on-line results from the project can be compared with Phebus-FP data and other complementary separate-effect studies (eg. HEVA/VERCORS), where emphasis is placed on post-test analyses of aerosol deposits.
Specific objectives from this programme are to establish an experimental database on fission product release and speciation - notably for releases in oxidizing atmospheres, to develop and test theoretical models for fission product release (specifically for release from fuel during oxidation, from molten pools, and at high pressures),to validate thermochemical models used in state-of-the-art severe accident codes, and to quantify the effects of pressure on fission product and control rod release phenomena. These objectives are consistent with Research Task B3.1 of the Fission Safety programme, and would enable these highpriority issues to be resolved. This work would also closely complement the Phebus-FP studies, providing separate-effects data with which to interpret these key integral experiments.
Fields of science (EuroSciVoc)
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
CORDIS classifies projects with EuroSciVoc, a multilingual taxonomy of fields of science, through a semi-automatic process based on NLP techniques. See: The European Science Vocabulary.
This project has not yet been classified with EuroSciVoc.
Be the first one to suggest relevant scientific fields and help us improve our classification service
You need to log in or register to use this function
Programme(s)
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Multi-annual funding programmes that define the EU’s priorities for research and innovation.
Topic(s)
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Calls for proposals are divided into topics. A topic defines a specific subject or area for which applicants can submit proposals. The description of a topic comprises its specific scope and the expected impact of the funded project.
Call for proposal
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Data not available
Procedure for inviting applicants to submit project proposals, with the aim of receiving EU funding.
Funding Scheme
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Funding scheme (or “Type of Action”) inside a programme with common features. It specifies: the scope of what is funded; the reimbursement rate; specific evaluation criteria to qualify for funding; and the use of simplified forms of costs like lump sums.
Coordinator
OX11 0QJ DIDCOT,HARWELL,CHILTON
United Kingdom
The total costs incurred by this organisation to participate in the project, including direct and indirect costs. This amount is a subset of the overall project budget.