Nuclear Engineering and Technology

  • 제52권3호
  • /
  • Pages.520-529
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  • 2020
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  • 1738-5733(pISSN)
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  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
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Critical heat flux (CHF) in pool boiling under static and rolling conditions

  • Tanjung, Elvira F. (School of Mechanical Engineering, Kyungpook National University) ;
  • Albdour, Samah A. (School of Mechanical Engineering, Kyungpook National University) ;
  • Jeong, Yeon Uk (School of Materials Science and Engineering, Kyungpook National University) ;
  • Jo, Daeseong (School of Mechanical Engineering, Kyungpook National University)
  • 투고 : 2019.04.24
  • 심사 : 2019.08.09
  • 발행 : 2020.03.25
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초록

Experimental investigations were attempted to simultaneously observe the vapor behaviors and critical heat flux under static and rolling conditions. From visualization results, vapor initiated, grew, and detached individually in a vertical direction from the static heated surfaces (at 10, 20, and 30°). While under rolling motion, initiated vapor grew, and interacted with each other, resulting in forming a wider dry spot on the heated surface. Also, it was observed that the vapor drifted upward and stayed on the heated surface longer compared to under static condition. The faster the platform rolls, the longer the vapor stay on the heated surface, significantly decreasing the CHF. On the other hand, as the platform rolls slower (at high rolling period), CHF increases. CHF was decreased with increasing maximum rolling amplitude and inclination angle under both conditions (static and rolling). CHF under rolling conditions was noticed to be lower than under static condition except at maximum rolling amplitude of 10°. The bubble departure frequency at a maximum rolling amplitude of 10° was the highest among all of rolling amplitudes, thereby enhancing the CHF. These results indicate that rolling motion significantly affects vapor behaviors and CHF.

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참고문헌

  1. N. Isshiki, Effects of heaving and listing upon thermo-hydraulic performance and critical heat flux of water-cooled marine reactors, Nucl. Eng. Des. 4 (2) (1966) 138-162. https://doi.org/10.1016/0029-5493(66)90088-4
  2. T. Otsuji, A. Kurosawa, Critical heat flux of forced convection boiling in an oscillating acceleration fielddI. General trends, Nucl. Eng. Des. 71 (1) (1982) 15-26. https://doi.org/10.1016/0029-5493(82)90165-0
  3. T. Otsuji, A. Kurosawa, Critical heat flux of forced convection boiling in an oscillating acceleration fielddII. Contribution of flow oscillation, Nucl. Eng. Des. 76 (1) (1983) 13-21. https://doi.org/10.1016/0029-5493(83)90043-2
  4. T. Otsuji, A. Kurosawa, Critical heat flux of forced convection boiling in an oscillating acceleration fielddIII. Reduction mechanism of CHF in subcooled flow boiling, Nucl. Eng. Des. 79 (1) (1984) 19-30. https://doi.org/10.1016/0029-5493(84)90185-7
  5. I. Ishida, T. Kusunoki, H. Murata, T. Yokomura, M. Kobayashi, H. Nariai, Thermal-hydraulic behavior of a marine reactor during oscillations, Nucl. Eng. Des. 120 (2-3) (1990) 213-225. https://doi.org/10.1016/0029-5493(90)90374-7
  6. H. Murata, I. Iyori, M. Kobayashi, Natural circulation characteristics of a marine reactor in rolling motion, Nucl. Eng. Des. 118 (2) (1990) 141-154. https://doi.org/10.1016/0029-5493(90)90053-Z
  7. H. Murata, K.-i. Sawada, M. Kobayashi, Natural circulation characteristics of a marine reactor in rolling motion and heat transfer in the core, Nucl. Eng. Des. 215 (1-2) (2002) 69-85. https://doi.org/10.1016/S0029-5493(02)00042-0
  8. G. Hong, X. Yan, Y.-h. Yang, T.-z. Xie, J.-j. Xu, Bubble departure size in forced convective subcooled boiling flow under static and heaving conditions, Nucl. Eng. Des. 247 (2012) 202-211. https://doi.org/10.1016/j.nucengdes.2012.03.008
  9. J.-S. Hwang, Y.-G. Lee, G.-C. Park, Characteristics of critical heat flux under rolling condition for flow boiling in vertical tube, Nucl. Eng. Des. 252 (2012) 153-162. https://doi.org/10.1016/j.nucengdes.2012.06.032
  10. Z. Yu, S. Tan, H. Yuan, C. Chen, X. Chen, Experimental investigation on flow instability of forced circulation in a mini-rectangular channel under rolling motion, Int. J. Heat Mass Transf. 92 (2016) 732-743. https://doi.org/10.1016/j.ijheatmasstransfer.2015.09.048
  11. Z. Zhu, J. Wang, C. Yan, C. Tian, S. Yu, X. Wang, Experimental study on natural circulation flow resistance characteristics in a 3${\times}$ 3 rod bundle channel under rolling motion conditions, Prog. Nucl. Energy 107 (2018) 116-127. https://doi.org/10.1016/j.pnucene.2018.04.018
  12. E.F. Tanjung, B.O. Alunda, Y.J. Lee, D. Jo, Experimental study of bubble behaviors and CHF on printed circuit board (PCB) in saturated pool water at various inclination angles, Nucl. Eng. Technol. 50 (2018) 1068-1078. https://doi.org/10.1016/j.net.2018.06.011
  13. E.F. Tanjung, D. Jo, Surface orientation effects on bubble behaviors and critical heat flux mechanism in saturated water pool, Int. J. Heat Mass Transf. 133 (2019) 179-191. https://doi.org/10.1016/j.ijheatmasstransfer.2018.12.113
  14. E.F. Tanjung, D. Jo, Boiling visualization and critical heat flux (CHF) phenomena on PCB in a saturated pool at various surface orientations, in: 2018 26th International Conference on Nuclear Engineering, American Society of Mechanical Engineers, 2018.
  15. A.H. Howard, I. Mudawar, Orientation effects on pool boiling critical heat flux (CHF) and modeling of CHF for near-vertical surfaces, Int. J. Heat Mass Transf. 42 (9) (1999) 1665-1688. https://doi.org/10.1016/S0017-9310(98)00233-6
  16. G. Liang, I. Mudawar, Pool boiling critical heat flux (CHF)-Part 1: review of mechanisms, models, and correlations, Int. J. Heat Mass Transf. 117 (2018) 1352-1367. https://doi.org/10.1016/j.ijheatmasstransfer.2017.09.134
  17. J. Chang, S. You, Heater orientation effects on pool boiling of micro-porousenhanced surfaces in saturated FC-72, J. Heat Transf. 118 (4) (1996) 937-943. https://doi.org/10.1115/1.2822592
  18. T. Si-chao, G. Su, G. Pu-zhen, Heat transfer model of single-phase natural circulation flow under a rolling motion condition, Nucl. Eng. Des. 239 (10) (2009) 2212-2216. https://doi.org/10.1016/j.nucengdes.2009.05.002
  19. B. Yan, L. Yu, The experimental and theoretical analysis of a natural circulation system in rolling motion, Prog. Nucl. Energy 54 (1) (2012) 123-131. https://doi.org/10.1016/j.pnucene.2011.07.005
  20. B. Yan, The modeling and validation of the flow and heat transfer models of pulsating flow in channels in rolling motion, Prog. Nucl. Energy 58 (2012) 64-75. https://doi.org/10.1016/j.pnucene.2012.02.011
  21. H. Zhu, X. Yang, J. Tu, S. Jiang, Experimental investigation of natural circulation in a symmetrical loop under large scale rolling motion conditions, J. Nucl. Sci. Technol. 50 (8) (2013) 844-855. https://doi.org/10.1080/00223131.2013.808969
  22. C. Chong, G. Pu-zhen, T. Si-chao, H. Dong, Effects of rolling motion on thermalehydraulic characteristics of boiling flow in rectangular narrow channel, Ann. Nucl. Energy 76 (2015) 504-513. https://doi.org/10.1016/j.anucene.2014.10.024
  23. S. Li, S. Tan, C. Xu, P. Gao, Visualization study of bubble behavior in a subcooled flow boiling channel under rolling motion, Ann. Nucl. Energy 76 (2015) 390-400. https://doi.org/10.1016/j.anucene.2014.10.004
  24. C. Chen, P.-z. Gao, S.-c. Tan, Z.-t. Yu, Boiling heat transfer characteristics of pulsating flow in rectangular channel under rolling motion, Exp. Therm. Fluid Sci. 70 (2016) 246-254. https://doi.org/10.1016/j.expthermflusci.2015.09.013
  25. H. Gong, X. Yang, Y. Huang, S. Jiang, J. Bi, The development and validation of a natural circulation analysis code for marine reactors, J. Nucl. Sci. Technol. 54 (4) (2017) 500-512. https://doi.org/10.1080/00223131.2016.1262295
  26. S. Yu, J. Wang, M. Yan, C. Yan, X. Cao, Experimental and numerical study on single-phase flow characteristics of natural circulation system with heated narrow rectangular channel under rolling motion condition, Ann. Nucl. Energy 103 (2017) 97-113. https://doi.org/10.1016/j.anucene.2017.01.008
  27. W. Tian, X. Cao, C. Yan, Z. Wu, Experimental study of single-phase natural circulation heat transfer in a narrow, vertical, rectangular channel under rolling motion conditions, Int. J. Heat Mass Transf. 107 (2017) 592-606. https://doi.org/10.1016/j.ijheatmasstransfer.2016.10.094
  28. P. Ji, P. Gao, Y. Zhang, Study of flow and heat transfer of low power natural circulation under rolling condition, in: 2017 25th International Conference on Nuclear Engineering, American Society of Mechanical Engineers, 2017.