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Title: Development of monitoring system of helium leakage from canister

Abstract

This paper presents a computational method for the helium leakage from a canister. The governing equations for compressible fluids consist of mass conservation equation in Eulerian description, momentum equations and energy equation. The numerical procedures are divided into three phases, advection, diffusion and acoustic phases, and the equations of compressible fluids are discretized with a finite volume method. Thus, the mass conservation law is sufficiently satisfied in the calculation region. In particular, our computational method enables us to predict the change of the temperature distributions around the canister boundaries by calculating the governing equations for the compressible gas flows, which are leaked out from a slight crack on the canister boundary. In order to confirm the validity of our method, it was applied to the basic problem, 2-dimensional natural convection flows in a rectangular cavity. As a result, it was shown that the naturally convected flows can be reasonably simulated by our method. Furthermore, numerical experiments were conducted for the helium leakage from canister and we derived a close relationship between the inner pressure and the boundary temperature distributions.

Authors:
 [1];  [2];  [3]
  1. Kyoto University, CERE, Kyoto, 615-8540 (Japan)
  2. Kyoto University, ACCMS, Kyoto, 606-8501 (Japan)
  3. Central Research Institute of Electric Power Industry - CRIEPI, Abiko 1646, 270-1194 (Japan)
Publication Date:
Research Org.:
American Nuclear Society, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
OSTI Identifier:
22264169
Resource Type:
Conference
Resource Relation:
Conference: GLOBAL 2013: International Nuclear Fuel Cycle Conference - Nuclear Energy at a Crossroads, Salt Lake City, UT (United States), 29 Sep - 3 Oct 2013; Other Information: Country of input: France; 9 refs.; Related Information: In: Proceedings of GLOBAL 2013: International Nuclear Fuel Cycle Conference - Nuclear Energy at a Crossroads| 1633 p.
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; ADVECTION; CONTAINERS; CRACKS; EQUATIONS; GAS FLOW; HELIUM; LEAKS; NATURAL CONVECTION; SIMULATION; TEMPERATURE DISTRIBUTION

Citation Formats

Toriu, D., Ushijima, S., and Takeda, H. Development of monitoring system of helium leakage from canister. United States: N. p., 2013. Web.
Toriu, D., Ushijima, S., & Takeda, H. Development of monitoring system of helium leakage from canister. United States.
Toriu, D., Ushijima, S., and Takeda, H. Mon . "Development of monitoring system of helium leakage from canister". United States.
@article{osti_22264169,
title = {Development of monitoring system of helium leakage from canister},
author = {Toriu, D. and Ushijima, S. and Takeda, H.},
abstractNote = {This paper presents a computational method for the helium leakage from a canister. The governing equations for compressible fluids consist of mass conservation equation in Eulerian description, momentum equations and energy equation. The numerical procedures are divided into three phases, advection, diffusion and acoustic phases, and the equations of compressible fluids are discretized with a finite volume method. Thus, the mass conservation law is sufficiently satisfied in the calculation region. In particular, our computational method enables us to predict the change of the temperature distributions around the canister boundaries by calculating the governing equations for the compressible gas flows, which are leaked out from a slight crack on the canister boundary. In order to confirm the validity of our method, it was applied to the basic problem, 2-dimensional natural convection flows in a rectangular cavity. As a result, it was shown that the naturally convected flows can be reasonably simulated by our method. Furthermore, numerical experiments were conducted for the helium leakage from canister and we derived a close relationship between the inner pressure and the boundary temperature distributions.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {7}
}

Conference:
Other availability
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