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http://dx.doi.org/10.5516/NET.2007.39.4.299

THERMAL-HYDRAULIC TESTS AND ANALYSES FOR THE APR1400'S DEVELOPMENT AND LICENSING  

Song, Chul-Hwa (Korea Atomic Energy Research Institute)
Baek, Won-Pil (Korea Atomic Energy Research Institute)
Park, Jong-Kyun (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.39, no.4, 2007 , pp. 299-312 More about this Journal
Abstract
The program on thermal-hydraulic evaluation by testing and analysis (THETA) for the development and licensing of the new design features in the APR1400 (Advanced Power Reactor-1400) is briefly introduced with a presentation on the research motivation and typical results of the separate effect tests and analyses of the major design features. The first part deals with multi-dimensional phenomena related to the safety analysis of the APR1400. One research area is related to the multidimensional behavior of the safety injection (SI) water in a reactor pressure vessel downcomer that uses a direct vessel injection type of SI system. The other area is associated with the condensation of steam jets and the resultant thermal mixing in a water pool; these phenomena are relevant to the depressurization of a reactor coolant system (RCS). The second part describes our efforts to develop new components for safety enhancements, such as a fluidic device as a passive SI flow controller and a sparger to depressurize the RCS. This work contributes to an understanding of the new thermal-hydraulic phenomena that are relevant to advanced reactor system designs; it also improves the prediction capabilities of analysis tools for multi-dimensional flow behavior, especially in complicated geometries.
Keywords
APR1400; THETA; DVI; Fluidic Device; Sparger; IRWST; Multi-Dimension;
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  • Reference
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8 B.J. Yun, C.-H. Song, K.H. Min., H.K. Cho and G.C. Park, 'Experimental Observations of the Hydraulic Phenomena in the APR1400 Downcomer during the DVI Line Break Accident', Proc. KNS Spring Mtg., Gyeongju, Korea, May 29-30, 2003
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11 C.R. Choi, T.S. Kwon and C.-H. Song, 'Numerical Analysis and Visualization Experiment on Behavior of Borated Water during MSLB with RCP Running Mode in an Advanced Reactor', Nuclear Eng. & Design, 237, pp. 778-790 (2007)   DOI   ScienceOn
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15 C.K. Park, C.-H. Song and H.G. Jun. 'Experimental Investigation of the Steam Condensation Phenomena due to a Multi-Hole Sparger', J. Nuclear Science & Technology, 44, 4 (2007)
16 C.K. Park and C.-H. Song, 'Influence of Key Parameters on the APR1400 In-Containment Refueling Water Storage Tank Hydrodynamic Loads', J. Nuclear Science & Technology, 40, 10 (2003)
17 C.-H. Song, W.P. Baek, M.K. Chung and J.K. Park, 'Multi -dimensional Thermal-Hydraulic Phenomena in Advanced Nuclear Reactor Systems: Current Status and Perspectives of the R&D Program at KAERI,' Proc. NURETH-10, Seoul, Korea, Oct. 5-9, 2003
18 T.S. Kwon, B.J. Yun, D.J. Euh, I.C. Chu and C.-H. Song, 'Multi-dimensional Mixing Behavior of Steam-Water Flow in a Downcomer Annulus during LBLOCA Reflood Phase with a DVI Injection Mode', Nuclear Technology, 143, 1 (2003)   DOI
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20 Y.S. Kim, J.W. Park and C.-H. Song, 'Investigation of the Steam-Water Direct Contact Condensation Heat Transfer Coefficients Using Interfacial Transport Models', Int. Comm. Heat & Mass Transfer, 31, 3 (2004)
21 I.-C. Chu, C.-H Song, B.H. Cho and J.K. Park, 'Development of Passive Flow Controlling Safety Injection Tank for APR1400', Accepted for Publication to Nuclear Eng. & Design (2007)
22 H.K. Cho, B.J. Yun, C.-H. Song and G.C. Park, 'Experimental Validation of the Modified Linear Scaling Methodology for Scaling ECC Bypass Phenomena in DVI Downcomer', Nuclear Eng. & Design, 235, pp. 2310-2322 (2005)   DOI   ScienceOn
23 D.J. Euh, B.J. Yun and C.-H. Song, 'Benchmarking of Five-Sensor Probe Method for the Measurement of Interfacial Area Concentration', Exp. In Fluids, 41, pp. 463-478 (2006)   DOI
24 H.S. Kang and C.-H. Song, 'CFD Simulation of Steam Discharge Test at a Low Mass Flux Condition in a Subcooled Water', Proc. ANS Annual Mtg., Boston, USA, June 24- 28, 2007
25 H.S Kang and C.-H. Song, 'CFD Analysis for a Thermal Mixing in a Subcooled Water Pool under a High Steam Mass Flux Discharge Condition', Accepted for Publication to Nuclear Eng. & Design (2007)
26 B.J. Yun, D.J. Euh and C.-H. Song, 'Characteristics of downcomer boiling phenomena during the reflood phase of a postulated large break LOCA for the APR1400', Submitted for Publication to Nuclear Eng. & Design (2007)
27 Y.S. Kim and C.-H. Song, 'Condensation Regime Map for a 4-Hole Sparger', Proc. ANS Annual Mtg., San Diego CA, June 1-4. 2003
28 I.-C. Chu, C.-H. Song, and J.K. Park, 'Performance Evaluation of a Passive Safety Injection Flow Controller for APR1400,' The 13th Pacific Basin Nuclear Conference (PBNC-13), Shenzhen, China, October 21-25, 2002
29 H.K. Cho, B.J. Yun, C.-H. Song and G.C. Park, 'Experimental Study for Multidimensional ECC Behaviors in Downcomer Annuli with a Direct Vessel Injection Mode during the LBLOCA Reflood Phase', J. Nuclear Science & Technology, 42, 6 (2005)
30 C.-H. Song, T.S. Kwon, I.C. Chu, H.G. Jun and C.K. Park, 'Overview of Thermal Hydraulic Test Program for Evaluating or Verifying the Performance of New Design Features in APR1400 Reactor', Proc. ICAPP'-02, Hollywood, Florida, June 9-13, 2002. (See also the website of the THETA program; http://theta.kaeri.re.kr)
31 B.J. Yun, H.K. Cho, D.J. Euh, C.-H. Song and G.C. Park, 'Scaling for the ECC bypass phenomena during the LBLOCA reflood phase', Nuclear Eng. & Design, 231, pp. 315-325 (2004)   DOI   ScienceOn