Numerical analysis of temperature stratification in the CIRCE pool facility
| Autor: | Fabio Giannetti, Luisa Ferroni, Mariano Tarantino, Francesco Edemetti, Vincenzo Narcisi, Alessandro Tassone |
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| Přispěvatelé: | Edemetti, F., Tassone, A., Narcisi, V., Giannetti, F., Ferroni, L., Tarantino, M. |
| Rok vydání: | 2019 |
| Předmět: |
History
Liquid metal Natural convection business.industry 020209 energy Nuclear engineering Numerical analysis 02 engineering and technology Nuclear reactor Computational fluid dynamics 7. Clean energy 01 natural sciences 010305 fluids & plasmas Computer Science Applications Education law.invention HLM GEN IV fission fast reactor CIRCE CFD Natural circulation law 0103 physical sciences Thermal 0202 electrical engineering electronic engineering information engineering Environmental science Boundary value problem business |
| Zdroj: | Journal of Physics: Conference Series |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/1224/1/012007 |
| Popis: | In the framework of Heavy Liquid Metal (HLM) GEN IV Nuclear reactor development, the focus is in the combination of security and performance. Numerical simulations with Computational Fluid Dynamics (CFD) or system codes are useful tools to predict the main steady-state phenomena and how transitional accidents could unfold in GEN IV reactors. In this paper, to support the validation of CFD as a valid tool for the design, the capability of ANSYS CFX 15 to simulate and reproduce mixed natural convection and thermal stratification phenomena inside a pool is investigated. The 3D numerical model is based on the CIRCE facility, located in CR ENEA Brasimone. It is a pool facility, structured with all the components necessary to simulate the behavior of an HLM reactor, where LBE flows into the primary circuit. For the analysis, the LBE physical properties are implemented in CFX by using recent NEA equations [2]. Previously published RELAP5-3D© results [1] are employed to derive accurate boundary conditions for the simulation of the steady-state conditions in the pool and for CFX validation. The analysis focuses on the pool natural circulation with the presence of thermal structures in contact with LBE, considered as constant temperature sources. The development of thermal stratification in the pool is observed and evaluated with a mesh sensitivity analysis. |
| Databáze: | OpenAIRE |
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