Jet-plume condensation of steam–air mixtures in subcooled water, Part 1: Experiments
| Autor: | Timothy L. Norman, Shripad T. Revankar |
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| Rok vydání: | 2010 |
| Předmět: |
Flow visualization
Nuclear and High Energy Physics Materials science Mechanical Engineering Condensation Steam injection Mixing (process engineering) Thermodynamics Mechanics Volumetric flow rate Subcooling Nuclear Energy and Engineering Boiling water reactor General Materials Science Safety Risk Reliability and Quality Waste Management and Disposal Loss-of-coolant accident |
| Zdroj: | Nuclear Engineering and Design. 240:524-532 |
| ISSN: | 0029-5493 |
| Popis: | A scaled-down, reduced pressure suppression pool was designed to study condensation and mixing phenomena for a LOCA (loss of coolant accident) event in a SBWR (simplified boiling water reactor) design. The scaled-down test facility represented an idealized trapezoidal cross-section, 1/10 sector of the SP (suppression pool) with scaled height ratio of 1/4.5 and volume ratio of 1/400. The facility was instrumented with thermocouples for pool temperature measurements and a high-speed camera for flow visualization. Thermal stratification data were obtained for different pool initial subcooling and steam–air mixture flow rates. A dimensionless boundary map was derived from several experimental runs of pure steam injection to determine conditions when the pool transitions from being a homogeneously mixed volume to being a thermally stratified one. Steam air mixture injection cases for single horizontal venting indicated that above a pool temperature of 40 °C with air mass fraction below 0.5% the pool can attain thermal stratification. |
| Databáze: | OpenAIRE |
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