Commenced in January 2007
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Combustion Analysis of Suspended Sodium Droplet

Authors: T. Watanabe

Abstract:

Combustion analysis of suspended sodium droplet is performed by solving numerically the Navier-Stokes equations and the energy conservation equations. The combustion model consists of the pre-ignition and post-ignition models. The reaction rate for the pre-ignition model is based on the chemical kinetics, while that for the post-ignition model is based on the mass transfer rate of oxygen. The calculated droplet temperature is shown to be in good agreement with the existing experimental data. The temperature field in and around the droplet is obtained as well as the droplet shape variation, and the present numerical model is confirmed to be effective for the combustion analysis.

Keywords: Combustion, analysis, sodium, droplet.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1474265

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References:


[1] N. Doda, S. Ohno, and S. Miyahara, “Falling sodium droplet experiments (FD2),” JNC TN9400 2003-011, 2003.
[2] N. Doda, S. Ohno, and S. Miyahara, “Falling sodium droplet experiments (FD3), “JNC TN9400 2005-048, 2005.
[3] K. Sato, “Study on combustion behavior of sodium droplet,” JNC TY9400 2003-008, 2003.
[4] K. Sato, “A experimental study on suspended sodium droplet combustion,” JNC TY9400 2004-003, 2004.
[5] Y. Okano and A. Yamaguchi, “Numerical simulation of a free falling liquid sodium droplet combustion,” Annals Nucl. Eergy, vol. 30, pp. 1863–1878, 2003.
[6] S. M. Saravanan, P. M. Rao, B. K. Nashine, P. selvaraj, and P. Chellapandi, “NAFCON-SF: A sodium spray fire code for evaluating thermal consequences in SFR containment,” Annals Nucl. Energy, vol. 90, pp. 389–409, 2016.
[7] A. Makino, “Ignition delay and limit of ignitability of a single sodium droplet: theor and experimental comparisons,” Combustion and Flame, vol 134, pp. 149-152, 2003.
[8] ANSYS FLUENT user guide, Ansys Inc., 2006.
[9] T. Watanabe and H. Nakamura, “CFD analysis of temperature stratification experiment in OECD/NEA ROSA project,” in Proc. 13th Int. Topical Meeting on Nucl. Reactor Thermal Hydraulics, Kanazawa, 2009, N13p1158.
[10] J. Cai and T. Watanabe, “Numerical simulation of thermal stratification in cold legs by using OpenFOAM,” Prog. Nucl. Sci. Tech., vol. 2, pp. 107-113, 2011.