Analysis of the chemical behavior of iodine in the suppression tank of the LOFT facility during experiment LP-FP-2 with IODE and IMPAIR-2/M
- Nuclear Technology Inst., Madrid (Spain). Centro de Investigaciones Energeticas Medioambientales y Tecnologicas
The significance of iodine for source term quantification has been studied by investigating its chemical behavior under the prototypical conditions of a hypothetical severe accident within the containment. As a result, some computer codes were developed and their validation is currently under way. The loss-of-fluid test (LOFT) program was one of the most relevant research projects in the area of nuclear safety. Its last experiment, LP-FP-2, simulated a V-sequence. A great deal of information was recorded on the fission product release, transport, and deposition. A theoretical approach to the chemical behavior of iodine in the blowdown suppression tank (BST) of the LOFT facility was attempted with the IODE and IMPAIR-2/M codes. The comparison of the predictions with the existing experimental data led to the conclusion that the BST system behaved as a low-volatility system, with most of the iodine in the form of the soluble nonvolatile species iodide. Only a partial conversion to volatile molecular iodine was observed due to the presence of radiation. However, the intensity of the [gamma] field was so weak that this transformation was not quantitatively meaningful.
- OSTI ID:
- 7046386
- Journal Information:
- Nuclear Technology; (United States), Vol. 106:2; ISSN 0029-5450
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
CONTAINMENT SYSTEMS
FISSION PRODUCT RELEASE
IODINE ISOTOPES
LOFT REACTOR
REACTOR SAFETY EXPERIMENTS
I CODES
LOW PRESSURE COOLANT INJECTION
REACTOR ACCIDENTS
REACTOR SAFETY
SENSITIVITY ANALYSIS
SOURCE TERMS
TEST FACILITIES
ACCIDENTS
COMPUTER CODES
CONTAINMENT
ECCS
ENGINEERED SAFETY SYSTEMS
ENRICHED URANIUM REACTORS
ISOTOPES
POWER REACTORS
PWR TYPE REACTORS
REACTOR PROTECTION SYSTEMS
REACTORS
RESEARCH AND TEST REACTORS
SAFETY
TANK TYPE REACTORS
TEST REACTORS
THERMAL REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
220900* - Nuclear Reactor Technology- Reactor Safety
220600 - Nuclear Reactor Technology- Research
Test & Experimental Reactors