Hydrodynamic Characteristics of Coolant Tracts in High-Temperature Gas-Cooled Nuclear Reactor
| Autor: | A. A. Dunaitsev, A. A. Satin, V. I. Solonin, S. I. Getya, P. V. Markov, V. G. Krapivtsev |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
business.industry Mechanics Computational fluid dynamics Nuclear reactor Brayton cycle Power (physics) law.invention Coolant Loop (topology) Nuclear Energy and Engineering law business Manifold (fluid mechanics) Astrophysics::Galaxy Astrophysics Distribution (differential geometry) |
| Zdroj: | Atomic Energy. 124:302-308 |
| ISSN: | 1573-8205 1063-4258 |
| DOI: | 10.1007/s10512-018-0414-5 |
| Popis: | A validation of the hydrodynamic characteristics of the coolant loop of a high-temperature gas-cooled reactor at low power in a power-generating facility using a turbo-machine conversion in a Brayton cycle is given. The validation is accomplished using diagnostics of models of a coolant loop, numerical modeling of the hydrodynamics, heat-and-mass transfer in models with more accurate three-dimensional CFD codes. Relations for ensuring tangential uniformity of the coolant velocity distribution near the core shell and at the entry into the distributing manifold are obtained. A distributing manifold geometry securing a uniform coolant flow distribution over core cooling tracts at low hydraulic resistance is proposed. Data are obtained on the velocity and temperature distributions in fuel pins spaced by a wire winding. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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