Wüest M. 51 Wykes M. 82 Yamaguchi M. 17 Ybarra G. 129 Yubero F ...

More documents

Recommendations

Info

JUNE 28 WEDNESDAY MORNING WS-18-WeM-INV.11 QA EFFORTS IN MANUFACTURING LARGE CRYOPUMP SYSTEMS FOR NUCLEAR FUSION APPLICATION. Hans S. Jensen and Chr. Day. Institute for Technical Physics, Forschungszentrum Karlsruhe, 76021 Karlsruhe, Germany. Forschungszentrum Karlsruhe (FZK) is contributing to the ITER (Latin: The way) project, the next generation fusion machine. ITER is the experimental step between today’s studies of plasma physics and tomorrow's electricity-producing fusion power plants. It is an international project involving many Associations from all over the world. The philosophy of the ITER construction, which is planned to be ready in ten years from now, is based on in-kind contributions. This means that each Association is actively taking responsibility for the components it provides to ITER: responsibility in cost, time, compliance to the Technical Specification, and quality. Within the general Quality Assurance framework which is set by the ITER Legal Entity, there is quite some flexibility left for the individual Association as to how fulfil quality aspects for the specific component; this approach is typical for a big R&D project, such as ITER, involving many prototypical components. Forschungszentrum Karlsruhe is expected to become the leading Association for provision of the large tailor-made cryopumping systems for ITER. This talk exemplifies the FZK experiences of manufacturing and the related quality assurance management for a recently accomplished R&D project, namely for a cryosorption pumping system used in a test facility of a neutral beam injector that will be used to heat the plasma of a nuclear fusion reactor with a beam of deuterium or hydrogen molecules. The huge gas throughput into the vessel of the test facility results in challenging needs on the cryopumping system, comprising two identical tailor-made pumps. To establish a mean pressure of several 10 -5 mbar in the test vessel a pumping speed of about 350 m 3 /s per pump is needed. This was realized with charcoal coated cryopanels which effectively pump hydrogen. For the cooling of the cryopanels, liquid helium at saturation pressure is used and therefore a two-phase forced flow in the cryopump system must be controlled. FZK received the responsibility to design, build, install and test the hardware for this task. The FZK specified requirements, detailed in 11 individual technical specifications which each included strict QA requirements. The manufacturing of the components were placed with a large number of industrial companies within Europe. The central contract for the assembly of the cryopumps was placed with an industrial company with experience in manufacture of advanced scientific components. This Main Assembly Contractor (MAC) manufactured the cryopumps using FZK design and drawings, but MAC also received a number of special components as FZK free issue items, where FZK was responsible for the testing and quality control before, during and after the manufacture. This presentation begins with a short outline of the cryopumping system design. It then identifies the FZK activities during some of the manufacturing processes, in particular the Third Party premanufacturing approval, construction approval, inspection of approved materials, checking welders´ qualifications, signing quality plans, witnessing the pressure testing, witnessing the vacuum leak testing, etc. The vacuum integrity of the different circuits is of paramount importance and vacuum leak testing has been included as holding points in the Quality Plan. All components have been tested to
JUNE 28 WEDNESDAY MORNING WS-18-TuA-INV.10 SPANISH SYNCHROTRON RADIATION: SOURCE: PRO- JECT STATUS AND VACUUM SYSTEM. Ll. Miralles and E. Al-Dmour. CELLS, Barcelona. Spain The Storage Ring ALBA is a 3 GeV third generation synchrotron light source under construction in Barcelona (Spain). ALBA is optimized for high photon flux density with a beam emittance of 4.5 nm.rad and a large number of straight sections for Insertion Devices (3´ 8 m, 12´ 4.2 m and 2´ 2.6 m) in a relatively small circumference of 268.8 m. Top-up operation is foreseen from the start. The injector complex will consist of a 100 MeV Linac and a full energy Booster with a rather small emittance 9nm.rad. The design of the lattice and of the major components of the accelerator complex (Linac and Booster, Magnets, RF system, Vacuum system) has been completed and the procurement procedure has started for the large majority of them. The construction of the building is planned to start in the first half of 2006 and the commissioning of the storage ring is foreseen for the end of 2008. This report gives an overview of the status of the project. 107
Page 1 and 2: Wüest M. 51 Wykes M. 82 Yamaguchi
Page 3 and 4: Oliveira F. J. 140 Orts M.J. 76 Ota
Page 5 and 6: Gabouze N. 125 Galán L. 112, 113,
Page 7 and 8: AUTHOR’S INDEX Aouabdia Y. 46 Aba
Page 9 and 10: AUTHORS’S INDEX 141
Page 11 and 12: JUNE 28 WEDNESDAY AFTERNOON JS2-WeA
Page 27 and 28: JS1 POSTERS 123
Page 29 and 30: JUNE 28 WEDNESDAY AFTERNOON RIVA-TF
Page 35 and 36: RIVA-TF POSTERS 115
Page 37 and 38: JUNE 28 WEDNESDAY AFTERNOON RIVA-SS
Page 39 and 40: RIVA-SS POSTERS 111
Page 41: JUNE 28 WEDNESDAY MORNING WS-18-WeM
Page 45 and 46: WS-18 SESSION 105
Page 47 and 48: JUNE 28 WEDNESDAY MORNING JS2-WeM-O
Page 49 and 50: JUNE 28 WEDNESDAY MORNING JS2-WeM-I
Page 51 and 52: JUNE 28 WEDNESDAY MORNING JS2-WeM-O
Page 53 and 54: JS2 SESSION 97
Page 55 and 56: JUNE 28 WEDNESDAY MORNING RIVA-SS-W
Page 63 and 64: RIVA-SS SESSION 87
Page 65 and 66: PLENARY 85
Page 67 and 68: JUNE 27 TUESDAY AFTERNOON WS-18-TuA
Page 69 and 70: JUNE 27 TUESDAY AFTERNOON WS-18-TuA
Page 71 and 72: JUNE 27 TUESDAY AFTERNOON JS1 SESSI
Page 73 and 74: JUNE 27 TUESDAY AFTERNOON JS1-TuA-I
Page 75 and 76: JUNE 27 TUESDAY AFTERNOON JS1-TuA-I
Page 77 and 78: TUESDAY AFTERNOON 73
Page 79 and 80: JUNE 27 TUESDAY MORNING WS-18-TuM-O
Page 81 and 82: JUNE 27 TUESDAY MORNING WS-18-TuM-O
Page 83 and 84: JUNE 27 TUESDAY MORNING WS-18-TuM-I
Page 85 and 86: JUNE 27 TUESDAY MORNING JS1-TuM-INV
Page 89 and 90: JUNE 27 TUESDAY MORNING JS1-TuM-.IN
Page 93 and 94:
JS1 SESSION 57
Page 95 and 96:
PLENARY 55
Page 97 and 98:
JUNE 26 MONDAY AFTERNOON WS-18-MoA-
Page 99 and 100:
JUNE 26 MONDAY AFTERNOON WS-18-MoA.
Page 101 and 102:
WS-18 SESSION 49
Page 103 and 104:
JUNE 26 MONDAY AFTERNOON RIVA-TF-Mo
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
JUNE 26 MONDAY AFTERNOON ETCHC-MoA-
Page 113 and 114:
JUNE 26 MONDAY AFTERNOON ETCHC-MoA-
Page 115 and 116:
ETCHC SESSION 35
Page 117 and 118:
JUNE 26 MONDAY MORNING WS-18-MoM-OR
Page 119 and 120:
JUNE 26 MONDAY MORNING WS-18-MoM-OR
Page 121 and 122:
JUNE 26 MONDAY MORNING WS-18-MoM.IN
Page 123 and 124:
JUNE 26 MONDAY MORNING RIVA-TF-MoM-
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
JUNE 26 MONDAY MORNING ETCHC-MoM-OR
Page 135 and 136:
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
JUNE 26 MONDAY MORNING ETCHC--MoM-O
Page 143 and 144:
PARALLEL SESSIONS 7
Page 145 and 146:
PLENARY 5
Page 147 and 148:
JUNE 26, 2006 Morning Session INDEX
Page 149:
Sigilum Universitatis Studii Salama
show all

Wüest M. 51 Wykes M. 82 Yamaguchi M. 17 Ybarra G. 129 Yubero F ...

Create successful ePaper yourself

Delete template?

Save as template?