Objective
IT IS IMPORTANT FOR THERMAL AND MECHANICAL UNDERWATER CUTTING OF RADIOACTIVE METAL COMPONENTS, TO PROVIDE FOR AN EFFICIENT COLLECTION OF THE ARISING CUTTING BY-PRODUCTS, THUS AVOIDING A REDUCTION OF VISIBILITY BY SUSPENDED PARTICLES AND REDUCING THE CONTAMINATION OF WATER AND THE RADIATION LEVEL AT THE WATER SURFACE.
THIS WORK AIMS MAINLY AT STUDYING VARIOUS FILTER SYSTEMS FOR EFFICIENT COLLECTION OF CUTTING BY-PRODUCTS IN AIR AND WATER, COMBINED WITH AN IN-DEPTH ANALYSIS OF THEIR DISTRIBUTION AND QUANTITIES AS FUNCTION OF CUTTING METHOD (GRINDER, PLASMA TORCH) AND CUTTING MATERIAL (STAINLESS STEEL, CLADDED CARBON STEEL, ALUMINIUM).
CUTTING TESTS WILL BE EXECUTED ON NON-RADIOACTIVE SAMPLES. THE WORK WILL BE CONCLUDED WITH PROPOSALS FOR THE MOST APPROPRIATE AIR AND WATER FILTER SYSTEMS FOR UNDERWATER CUTTING OF RADIOACTIVE MATERIALS.
All the byproducts generated in both air and water by cutting with an underwater plasma arc, as an example of a thermal cutting technique, and by underwater grinding, as an example of a mechanical cutting technique, were collected. Various filter systems were tried and their efficiencies measured. Finally, proposals for air and water filter systems appropriate for cutting radioactive materials were made.
The work with mechanical grinding and plasma arc cutting was carried out with sheet thicknesses of 60 mm for stainless steel (1.4301 or AISI 304), cladded carbon steel, carbon steel (St 37) and aluminium (AlMg3).
The cutting parameters for plasma arc cutting included different cutting positions, as orientation with regard to gravity could reduce the release of particles into air and water.
It was found that the filters used for aerosol filtration gave good results. The lifetime of a filter depended on the material being cut. It was very short for aluminium. All filter elements had a low efficiency stage at the beginning of the cutting test. This effect was shorter for filters with a high nominal efficiency. The filtration of suspended particles in water was carried out with filters of different materials and different nominal pore sizes. Glass fibre filters had the best lifetime, but were easily damaged when there was a high pressure differential.
B.1. MODIFICATION AND ADAPTATION OF THE EXISTING TEST FACILITY FOR THE PROVIDED WORK PROGRAMME AND PURCHASING OF SUPPLEMENTARY INSTRUMENTATION.
B.2. SELECTION AND DEFINITION OF THE MAIN PARAMETERS FOR CUTTING TESTS WITH GRINDERS AND PLASMA ARC TORCH.
B.3. EXECUTION OF THE TEST PROGRAMME ON THE DISTRIBUTION AND CONCENTRATION OF PARTICLES ARISING IN AIR AND WATER WITH VARIOUS FILTER SYSTEMS.
B.4. ASSESSMENT OF THE EFFICIENCY AND EFFECTIVE STANDTIME OF AIR FILTERS AND WATER FILTERS.
B.5. CHEMICAL ANALYSIS OF THE CUTTING BY-PRODUCTS, FOUND IN AIR AND WATER.
B.6. CONCLUSIVE ASSESSMENT FOR AN OPTIMISATION OF FILTER SYSTEMS FOR UNDERWATER CUTTING.
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.
- natural sciences chemical sciences inorganic chemistry post-transition metals
- engineering and technology materials engineering amorphous solids
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.
Data not available
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
30167 HANNOVER
Germany
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.