HIGH HEAT-FLUX TESTING OF A HIP BONDED FIRST WALL PANEL WITH BUILT-INCIRCULAR COOLING TUBES

Citation
T. Hatano et al., HIGH HEAT-FLUX TESTING OF A HIP BONDED FIRST WALL PANEL WITH BUILT-INCIRCULAR COOLING TUBES, Fusion engineering and design, 39-4, 1998, pp. 363-370
Citations number
9
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Nuclear Sciences & Tecnology
ISSN journal
0920-3796
Volume
39-4
Year of publication
1998
Pages
363 - 370
Database
ISI
SICI code
0920-3796(1998)39-4:<363:HHTOAH>2.0.ZU;2-R
Abstract
A HIP bonded DS-Cu/SS first wall (FW) with built-in circular cooling t ubes was fabricated under the optimized HIP conditions. High heat flux testing of the panel was carried out on electron beam facility, JEBIS , at JAERI. The objective of this test is to examine the thermomechani cal performance of the panel, including the integrity of the HIP bonde d interfaces and also to examine the relation between the: design fati gue curve and experimental results. Test conditions applied during the se tests were 5.0-7.0 MW/m(2) in average, much higher than the ITER no rmal operation condition of 0.5 MW/m2, to accelerate the fatigue test with a repetition cycle up to 2500 cycles in total. High heat flux tes ts consisted of two test campaigns. Throughout these tests, no damages such as cracks were observed and no degradation in heat removal perfo rmance was also observed from temperature responses measured with ther mocouples embedded within the panel. Thermomechanical integrity of the panel was confirmed within the parameter tests and the fatigue lifeti me of the panel was found to be much longer than the design fatigue cu rve of this material, or even beyond the raw fatigue data. (C) 1998 Pu blished by Elsevier Science S.A. All rights reserved.