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COTELS project (4): structural investigation of solidified debris in MCCI = : COTELS-Projekt (4): Strukturelle Untersuchung des erstarrten Schüttbettes in MCCI

Cross section of concrete trap along with solidified debris tested in COTELS Test B/C, in which the interaction among core melt, water and concrete was simulated, were structurally investigated. In 6 tests out of 10 tests, particulate debris bed was formed above continuous ingot debris. The size dis... Full description

Kongresse: OECD Workshop on Ex-Vessel Debris Coolability 1999 1999.11.15-1999.11.18 Karlsruhe, DE
OECD Workshop on Ex-Vessel Debris Coolability 1999.11.15-1999.11.18 Karlsruhe, DE
Contained in: Forschungs-Zentrum Karlsruhe, Wissenschaftliche Berichte, Technik und Umwelt Vol. 6475 (2000), p. 309-316
Journal Title: Forschungs-Zentrum Karlsruhe, Wissenschaftliche Berichte, Technik und Umwelt
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ISSN: 0947-8620
Additional Keywords: BETON
DURCHGEHEN
EROSION
FESTBETT
GROESSTER-ANZUNEHMENDER-UNFALL
KERNENERGIE
KERNKRAFTWERK
KERNREAKTOR
NICHTROSTENDER-STAHL
POROSITAET
SCHMELZE
SICHERHEITSTECHNIK
TEILCHENGROESSENVERTEILUNG
URANOXID
WASSERKUEHLUNG
ZIRKONIUM
ZIRKONIUMOXID
Notes: Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG
Copyright: (C) Alle Rechte beim Herausgeber
Physical Description: 8 Seiten, 10 Bilder, 3 Tabellen, 6 Quellen
PPN (Catalogue-ID): WTI037808486
Note: WTI TEMA DB
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Internes Format
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245 0 0 |a COTELS project (4): structural investigation of solidified debris in MCCI =  |b COTELS-Projekt (4): Strukturelle Untersuchung des erstarrten Schüttbettes in MCCI 
300 |a 8 Seiten, 10 Bilder, 3 Tabellen, 6 Quellen 
500 |a Copyright: Metadaten: TEMA, Copyright WTI-Frankfurt eG 
500 |a Copyright: (C) Alle Rechte beim Herausgeber 
520 |a Cross section of concrete trap along with solidified debris tested in COTELS Test B/C, in which the interaction among core melt, water and concrete was simulated, were structurally investigated. In 6 tests out of 10 tests, particulate debris bed was formed above continuous ingot debris. The size distribution of the particulate debris was well correlated by Rosin-Rammler equation. Large amount of smallest diameter particles was obtained due to the entrainment of molten corium, decomposed concrete and oxidation of metallic components in corium associated with molten core concrete interaction (MCCI) generated gas. The upper region of the solidified debris included more concrete compositions. The concrete erosion depth, concrete degradation condition and the structure of solidified debris were evaluated to clarify the basic difference between COTELS and former tests results. Concrete erosion depth was less than that observed in MACE, WETCOR, SWISS tests. The major differences of COTELS results compared with the former test results were: 1) absence of strong adhesion of crust to melt trap side wall: 2) water penetration into debris through both eroded side wall and channels inside ingot debris: 3) absence of large void inside ingot debris: and 4) formation of pebble bed below ingot debris. All of these promoted the suppression of MCCI. 
653 4 |a SCHMELZE 
653 4 |a URANOXID 
653 4 |a NICHTROSTENDER-STAHL 
653 4 |a ZIRKONIUM 
653 4 |a ZIRKONIUMOXID 
653 4 |a KERNREAKTOR 
653 4 |a KERNENERGIE 
653 4 |a SICHERHEITSTECHNIK 
653 4 |a GROESSTER-ANZUNEHMENDER-UNFALL 
653 4 |a DURCHGEHEN 
653 4 |a KERNKRAFTWERK 
653 4 |a FESTBETT 
653 4 |a BETON 
653 4 |a WASSERKUEHLUNG 
653 4 |a TEILCHENGROESSENVERTEILUNG 
653 4 |a POROSITAET 
653 4 |a EROSION 
711 2 |a OECD Workshop on Ex-Vessel Debris Coolability  |n 1999  |d 1999.11.15-1999.11.18  |c Karlsruhe, DE 
711 2 |a OECD Workshop on Ex-Vessel Debris Coolability  |d 1999.11.15-1999.11.18  |c Karlsruhe, DE 
773 0 8 |i In  |t Forschungs-Zentrum Karlsruhe, Wissenschaftliche Berichte, Technik und Umwelt  |g Vol. 6475 (2000), p. 309-316  |q 6475<309-316  |x 0947-8620  |x 0947-8620 
912 |a GBV_WTI 
950 |a Schmelze  |a Uranoxid  |a rostfreier Stahl  |a Zirkonium  |a Zirkoniumoxid  |a Kernreaktor  |a Kernenergie  |a Sicherheitstechnik  |a GAU (größter anzunehmender Unfall)  |a Durchgehen  |a Kernkraftwerk  |a Schüttbett  |a Beton  |a Wasserkühlung  |a Partikelgrößenverteilung  |a Porosität  |a Erosion  |a Kernschmelze  |2 DE-601 
951 |a AR 
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