NDLI: Tritium extraction system pipe break environmental impact by atmospheric modelling of tritium forms transport

Content Provider	IEEE Xplore Digital Library
Author	Castro, P. Velarde, M. Ardao, J. Perlado, J.M. Sedano, L.
Copyright Year	2013
Description	Author affiliation: DENIM, ETSII Nucl. Fusion Inst., Madrid, Spain (Velarde, M.; Perlado, J.M.) \|\| Environ. Applic. Service, AEMET, Madrid, Spain (Ardao, J.) \|\| LNF (Nat. Fusion Lab.), EURATOM-CIEMAT Assoc., Madrid, Spain (Castro, P.; Sedano, L.)
Abstract	In the case of a Tritium-Extraction-System (TES) pipe break (with critical failure of a fuelling line), the tritium source term has not yet been determined in the frame of European Test Blanket Systems, as Design Basis Accident (DBA) but it is expected to be in the order of a few grams. In this critical scenario acute modeling of environmental tritium transport forms (HT and HTO) for the assessment of fusion facilities dosimetric impact appears as of major interest. This paper considers different term releases of tritium-forms to the atmosphere from ITER which has experienced a frequent failure of a fueling line, due the little TES pipe break affecting a Helium-Cooled-Lithium-Lead Test-Blanket-Module. In case of 24.3 g of tritium were released from the broken fuelling-line directly into the gallery found only 0.5 g was released to the environment, assuming a little rupture in the TES piping located in the Port Cell. In this paper we assume a hypothetical daily release of one gram of tritium in HT and HTO forms. The daily failure is taken just in order to evaluate different meteorological scenarios or weather conditions. The working model simulates the tritium forms dispersion and environmental impact out of the complex ITER-tokamak (and its safeguards) of selected environmental patterns both inland and in-sea using ECMWF/FLEXPART model. We explore specific values of this ratio at different levels. We examine the influence of meteorological conditions of the tritium behavior during 24 hours after the release. For this purpose we have used a tool which consists on a coupled Lagrangian ECMWF/FLEXPART model which is useful to follow real-time releases of tritium at low levels of the boundary layer to provide an approximation of tritium cloud behavior ranging from 3 to 24 hours.
Starting Page	1
Ending Page	7
File Size	468156
Page Count	7
File Format	PDF
e-ISBN	9781479901715
DOI	10.1109/SOFE.2013.6635497
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-06-10
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Atmospheric modeling Real-time systems Ocean temperature Clouds Predictive models Wind Sea surface Tritium plume TRS pipe break PAV Fuskite Port Cell HCLL Tritium Cloud
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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