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KIT – University of the State of Baden-Wuerttemberg and National Research Center of the Helmholtz Association
Institute for Materials Research I
www.kit.edu
3rd Review Meeting – ITER Port Plug Engineering2010: work performed in WP3
Trainee: Gaetano AielloSupervisor: Theo Scherer
Institute for Materials Research I2 Gaetano Aiello – 2010: work performed in WP3
Work Package 3
16 December 2010
• Location: KIT, Institute for Materials Research I• Start date: 01 September 2008•Topic: materials, manufacturing and assembly of upper port plug structures
•Sharing among the associations: CEA/Cadarache, HAS
Electon Cyclotron Heating Upper Launcher (ECH UL)
02 May – 30 July 2010: secondment at CEA/IRFM
Institute for Materials Research I3
The ECH UL in ITER
16 December 2010
BSM
Main frame
Support flange
Socket
Closure plate
Waveguides
Internal shield
Front shield
Steering mirrorsFocusing mirrors
Quasi optical mirrors
Intermediate plate
Auxiliary shield
Main frame –double wall area
Main frame –single wall area
First wall panel
BSM with double wall shell
Main frame – BSM flange
Gaetano Aiello – 2010: work performed in WP3
Institute for Materials Research I4
Activities
16 December 2010
• First experimental outgassing measurements for the structural material of the ECH UL
• Neutronic CATIA model of the ITER diagnostic equatorial port plug 1 (EPP 1) at CEA/Cadarache
• Structural analyses using ANSYS Workbench and APDL
Gaetano Aiello – 2010: work performed in WP3
Institute for Materials Research I5
Outgassing measurements: why?
16 December 2010
Outgassing is the gas desorbed from a vacuum surface due to the temperature of the surface.
Critical issue: contamination of the ITER plasma!
In-vessel component:
• 316L(N)-IG stainless steel
• T=120-150°C (240°C for baking)
• Internal vacuum ~ 10-3-10-2 Pa
Outgassing limits are given in the ITER Vacuum Handbook.
Experimental measurements are necessary to verify the compliance with the limits.
HIPing: no outgassing data are available in literature.
Gaetano Aiello – 2010: work performed in WP3
Institute for Materials Research I6
Outgassing measurements: setup & technique
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
• AISI 316LN, AISI 317LMN• Powder HIPing, rolling, rolling
plus solid HIPing• Two different surface finishes• Time and temperature
dependent measurements( )sR bR
r
C P - Pq =
A
Institute for Materials Research I7
Outgassing measurements: first results
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
The obtained results are only preliminary and as a consequence cannot be compared yet to the outgassing limits.
Institute for Materials Research I8
Neutronic EPP 1 CATIA model - 1
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
Objective: create a simplified EPP 1 CATIA model in order to enable neutronic analyses.
Interface programs like McCAD are able to convert CAD geometry data into a suitable model for the Monte Carlo transport code MCNP.
Institute for Materials Research I9
Neutronic EPP 1 CATIA model - 2
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
RNC-IN
VI
NFM
DIM
HRNS
BOL
BOL
MSE
Plug
internal
volume
Plug
external
shell
Institute for Materials Research I10
Structural analyses
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
• ANSYS training course in Budapest, 20-23 September 2010• ANSYS training at JET in the context of the study of an ECRH system for JET, 25 October – 5 November 2010
BSM corner prototypes CVD diamond window
Institute for Materials Research I11
Other activities
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
Attended conferences and training courses:
•26th Symposium on Fusion Technology (SOFT), 27 September – 1 October 2010, Porto, Portugal•23rd IAEA Fusion Energy Conference (FEC), 11-16 October 2010, Daejeon, Korea•RCC MR training course, 9-10 December 2010, Cadarache, France.
Planned training courses:
•Successful International Project Management I (Basic), 3-4 February 2011, Karlsruhe, Germany•Giving High Performance Presentations, 28-29 March 2011, Karlsruhe, Germany•Effective negotiations, 30-31 March 2011, Karlsruhe, Germany.
Institute for Materials Research I12
Future work
16 December 2010 Gaetano Aiello – 2010: work performed in WP3
Secondments:
•Industrial company MAN, 12 January – 2 February 2011, Deggendorf, Germany•Industrial company REUTER, 1 month, Alzenau, Germany•HAS, 1 month, Budapest, Hungary.
End of training: 31 August 2011
Activities:
•Improve the experimental setup for the outgassing measurements. New mass spectrometer, new samples and load-lock system.•Carry on structural analyses using ANSYS tools.
