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http://dx.doi.org/10.1016/j.net.2016.02.015

Mass Transfer Experiments for the Heat Load During In-Vessel Retention of Core Melt  

Park, Hae-Kyun (Department of Nuclear Engineering, Kyung Hee University)
Chung, Bum-Jin (Department of Nuclear Engineering, Kyung Hee University)
Publication Information
Nuclear Engineering and Technology / v.48, no.4, 2016 , pp. 906-914 More about this Journal
Abstract
We investigated the heat load imposed on the lower head of a reactor vessel by the natural convection of the oxide pool in a severe accident. Mass transfer experiments using a $CuSO_4-H_2SO_4$ electroplating system were performed based on the analogy between heat and mass transfer. The $Ra^{\prime}_H$ of $10^{14}$ order was achieved with a facility height of only 0.1 m. Three different volumetric heat sources were compared; two had identical configurations to those previously reported, and the other was designed by the authors. The measured Nu's of the lower head were about 30% lower than those previously reported. The measured angular heat flux ratios were similar to those reported in existing studies except for the peaks appearing near the top. The volumetric heat sources did not affect the Nu of the lower head but affected the Nu of the top plate by obstructing the rising flow from the bottom.
Keywords
Hemisphere; In-Vessel Retention; Mass Transfer; Natural Convection; Oxide Pool; Volumetric Heat Source;
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Times Cited By KSCI : 1  (Citation Analysis)
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1 J.M. Bonnet, J.M. Seiler, Thermal hydraulic phenomena in corium pools: the BALI experiment, in: 7th International Conference on Nuclear Engineering, Tokyo, Japan, 1999.
2 O. Kymalainen, H. Tuomisto, O. Hongisto, T.G. Theofanous, Heat flux distribution from a volumetrically heated pool with high Rayleigh number, Nucl. Eng. Des. 149 (1994) 401-408.   DOI
3 B.R. Sehgal, V.A. Bui, T.N. Dinh, J.A. Green, G. Kolb, SIMECO Experiments on in-vessel melt pool formation and heat transfer with and without a metallic layer, in: Proceedings of In-Vessel Core Debris Retention and Coolability Workshop, Garching, Germany, 1998, pp. 205-213.
4 J.K. Lee, K.Y. Suh, K.J. Lee, J.I. Yun, Experimental study of natural convection heat transfer in a volumetrically heated semicircular pool, Ann. Nucl. Energy 73 (2014) 432-440.   DOI
5 K.Y. Suh, et al., In-vessel Retention Strategy for High Power Reactors, Korea Electrical Engineering & Science Research Institute, Korea, 2005.
6 A. Palagin, F. Kretzschmar, LIVE test FSt4: experimental results and simulation by CONV code, in: 13th International Topical Meeting on Nuclear Reactor Thermal Hydraulics, Kanazawa City, Japan, 2009.
7 F.J. Asfia, V.K. Dhir, An experimental study of natural convection in a volumetrically heated spherical pool bounded on top with a rigid wall, Nucl. Eng. Des. 163 (1996) 333-348.   DOI
8 T.G. Theofanous, M. Maguire, S. Angelini, T. Salmassi, The first results from the ACOPO experiment, Nucl. Eng. Des. 169 (1997) 49-57.   DOI
9 A. Bejan, Convection Heat Transfer, fourth ed., Wiley & Sons, New Jersey, 2003.
10 V.G. Levich, Physicochemical Hydrodynamics, Prentice-Hall, Englewood Cliffs, New Jersey, 1962.
11 J.N. Agar, Diffusion and convection at electrodes, Discuss. Faraday Soc. 26 (1947) 27-37.
12 C.W. Tobias, R.G. Hickman, Ionic mass transfer by combined free and forced convection, Int. J. Res. Phys. Chem. Chem. Phys. 229 (1965) 145-166.
13 E.J. Fenech, C.W. Tobias, Mass transfer by free convection at horizontal electrodes, Electrochim. Acta 2 (1960) 311-325.   DOI
14 J.H. Heo, B.J. Chung, Natural convection heat transfer on the outer surface of inclined cylinders, Chem. Eng. Sci. 73 (2012) 366-372.   DOI
15 M.S. Chae, B.J. Chung, The effect of pitch-to-diameter on natural convection heat transfer of two vertically aligned horizontal cylinders,, Chem. Eng. Sci. 66 (2011) 5321-5329.   DOI
16 S.H. Ko, D.W. Moon, B.J. Chung, Applications of electroplating method for heat transfer studies using analogy concept, Nucl. Eng. Technol. 38 (2006) 251-258.
17 K.U. Kang, B.J. Chung, The effects of the anode size and position on the limiting currents of natural convection mass transfer experiments of natural convection mass transfer experiments in a vertical pipe, Trans. KSME(B) 34 (2010) 1-8.
18 J.H. Heo, B.J. Chung, Influence of helical tube dimensions on open channel natural convection heat transfer, Int. J. Heat Mass Transfer 55 (2012) 2829-2834.   DOI
19 J.Y. Moon, B.J. Chung, Time-dependent RayleigheBenard convection: cell formation and Nusselt number, Nucl. Eng. Des. 274 (2014) 146-153.   DOI
20 M.S. Chae, B.J. Chung, Natural convection heat transfer in a uniformly heated horizontal pipe, Heat Mass Transfer 50 (2014) 114-123.
21 H.K. Park, B.J. Chung, Optimal tip clearance in the laminar forced convection heat transfer of a finned plate in a square duct, Int. Commun. Heat Mass Transfer 63 (2015) 73-81.   DOI
22 J. Krysa, A.A. Wragg, D.M. Thomas, M.A. Patrick, Free convection mass transfer in open upward-facing cylindrical cavities, Chem. Eng. J. 79 (2000) 179-186.   DOI
23 W.G. Steele, H.W. Coleman, Experimental and Uncertainty Analysis for Engineers, second ed., John Wiley & Son, Canada, 1999.
24 J. Krysa, D. Houf, C.F. Oduoza, A.A. Wragg, Free convective mass transfer at up-pointing truncated cones, Chem. Eng. J. 85 (2002) 147-151.   DOI
25 Y. Konishi, Y. Nakamura, Y. Fukunaka, K. Tsukada, K. Hanasaki, Anodic dissolution phenomena accompanying supersaturation of copper sulfate along a vertical plane copper anode, Electrochim. Acta 48 (2003) 2615-2624.   DOI