Design of A scale-down experimental model for SFR reactor vault cooling system performance analyses
| العنوان: | Design of A scale-down experimental model for SFR reactor vault cooling system performance analyses |
|---|---|
| المؤلفون: | Ho Seon Ahn, Somchai Wongwises, Koung Moon Kim, Ji-Hwan Hwang, Dong-Wook Jerng |
| المصدر: | Nuclear Engineering and Technology. 52:1611-1625 |
| بيانات النشر: | Elsevier BV, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Natural convection, 020209 energy, Numerical analysis, Fluid mechanics, 02 engineering and technology, Mechanics, 030218 nuclear medicine & medical imaging, Thermal hydraulics, 03 medical and health sciences, 0302 clinical medicine, Nuclear Energy and Engineering, Heat transfer, 0202 electrical engineering, electronic engineering, information engineering, Fluid dynamics, Stanton number, Scaling, Mathematics |
| الوصف: | We propose a scaled-down experimental model of vertical air-natural convection channels by applying the modified Ishii–Kataoka scaling method with the assistance of numerical analyses to the Reactor Vault Cooling System (RVCS) of the Proto-type Gen-IV Sodium-cooled fast reactor (PGSFR) being developed in Korea. Two major non-dimensional numbers (modified Richardson and Friction number) from the momentum equation and Stanton number from the energy balance equation were identified to design the scaled-down experimental model to assimilate thermal-hydraulic behaviors of the natural convective air-cooling channel of RVCS. The ratios of the design parameters in the PGSFR RVCS between the prototype and the scaled-down model were determined by setting Richardson and Stanton number to be unity. The friction number which cannot be determined by the Ishii-Kataoka method was estimated by numerical analyses using the MARS-KS system code. The numerical analyses showed that the friction number with the form loss coefficient of 2.0 in the scale-down model would result in an acceptable prediction of the thermal-hydraulic behavior in RVCS. We also performed experimental benchmarking using the scaled-down model with the MARS-KS simulations to verify the appropriateness of the scale-down model, which demonstrated that the temperature rises and the average air flow velocity measured in the scale-down model. |
| تدمد: | 1738-5733 |
| DOI: | 10.1016/j.net.2020.01.005 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::4e3e92eb2c76825e805adbd8542eafbe https://doi.org/10.1016/j.net.2020.01.005 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........4e3e92eb2c76825e805adbd8542eafbe |
| قاعدة البيانات: | OpenAIRE |
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