Dust tracking techniques applied to the STARDUST facility: First results

Malizia, Andrea and Camplani, Massimo and Gelfusa, Michela and Lupelli, Ivan and Richetta, Maria and Antonelli, L. and Conetta, F. and Scarpellini, David and Carestia, Mariachiara and Peluso, Emmanuele and Bellecci, Carlo and Salgado Álvarez de Sotomayor, Luis and Gaudio, Pasquale (2014). Dust tracking techniques applied to the STARDUST facility: First results. "Fusion Engineering and Design", v. 89 (n. 9-10); pp. 2098-2102. ISSN 0920-3796. https://doi.org/10.1016/j.fusengdes.2014.01.014.

Description

Title: Dust tracking techniques applied to the STARDUST facility: First results
Author/s:
  • Malizia, Andrea
  • Camplani, Massimo
  • Gelfusa, Michela
  • Lupelli, Ivan
  • Richetta, Maria
  • Antonelli, L.
  • Conetta, F.
  • Scarpellini, David
  • Carestia, Mariachiara
  • Peluso, Emmanuele
  • Bellecci, Carlo
  • Salgado Álvarez de Sotomayor, Luis
  • Gaudio, Pasquale
Item Type: Article
Título de Revista/Publicación: Fusion Engineering and Design
Date: 2014
ISSN: 0920-3796
Volume: 89
Subjects:
Freetext Keywords: Nuclear fusion plants; Security; Safety; Dust tracking; Computer vision; Particle image velocimetry (PIV)
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

An important issue related to future nuclear fusion reactors fueled with deuterium and tritium is the creation of large amounts of dust due to several mechanisms (disruptions, ELMs and VDEs). The dust size expected in nuclear fusion experiments (such as ITER) is in the order of microns (between 0.1 and 1000 μm). Almost the total amount of this dust remains in the vacuum vessel (VV). This radiological dust can re-suspend in case of LOVA (loss of vacuum accident) and these phenomena can cause explosions and serious damages to the health of the operators and to the integrity of the device. The authors have developed a facility, STARDUST, in order to reproduce the thermo fluid-dynamic conditions comparable to those expected inside the VV of the next generation of experiments such as ITER in case of LOVA. The dust used inside the STARDUST facility presents particle sizes and physical characteristics comparable with those that created inside the VV of nuclear fusion experiments. In this facility an experimental campaign has been conducted with the purpose of tracking the dust re-suspended at low pressurization rates (comparable to those expected in case of LOVA in ITER and suggested by the General Safety and Security Report ITER-GSSR) using a fast camera with a frame rate from 1000 to 10,000 images per second. The velocity fields of the mobilized dust are derived from the imaging of a two-dimensional slice of the flow illuminated by optically adapted laser beam. The aim of this work is to demonstrate the possibility of dust tracking by means of image processing with the objective of determining the velocity field values of dust re-suspended during a LOVA.

More information

Item ID: 36066
DC Identifier: http://oa.upm.es/36066/
OAI Identifier: oai:oa.upm.es:36066
DOI: 10.1016/j.fusengdes.2014.01.014
Official URL: http://www.sciencedirect.com/science/article/pii/S0920379614000155
Deposited by: Memoria Investigacion
Deposited on: 30 Jun 2015 16:24
Last Modified: 01 Nov 2015 23:56
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