Journal of Advanced Marine Engineering and Technology

  • 제38권5호
  • /
  • Pages.581-588
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  • 2014
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  • 2234-7925(pISSN)
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  • 2234-8352(eISSN)
한국마린엔지니어링학회 (The Korean Society of Marine Engineering)
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Boiling CHF phenomena in water and FC-72

  • Park, Jongdoc (Shipping Technology Department, National Institute of Technology, Oshima College) ;
  • Fukuda, Katsuya (Graduate School of Maritime Sciences, Kobe University) ;
  • Liu, Qiusheng (Graduate School of Maritime Sciences, Kobe University)
  • 투고 : 2013.12.20
  • 심사 : 2014.03.11
  • 발행 : 2014.06.30
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초록

Extensive researches toward pool boiling characteristics have been widely investigated. However, the correct understanding of its boiling crisis by Critical Heat Flux (CHF) phenomenon during steady and transient heat transfer as a fundamental database for designing heat generation systems is still need to be clarified. The pool boiling CHFs were investigated to clarify the generalized phenomena of transition to film boiling at transient condition. The CHFs were measured on 1.0 mm diameter horizontal cylinder of platinum for exponential heat generation rates with various periods for saturated liquids at atmospheric pressure. The incipience of boiling processes was completely different depending on pre-pressurization. Also, the dependence of pre-pressure in transient CHFs changed due to the wettability of boiling liquids. The trend of typical CHFs were clearly divided into the first, second and third groups for long, short and intermediate periods, respectively. By the effect of pre-pressurization, the boiling incipience mechanism was replaced from that by active cavities entraining vapor to that by the HSN in originally flooded cavies.

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참고문헌

  1. A. Sakurai and K. Fukuda, "Mechanisms of subcooled pool boiling CHFs depending on subcooling, pressure, and test heater configurations and surface conditions in liquids", Proceedings of The American Society of Mechanical Engineers International Mechanical Engineering Congress & Exposition, pp. 1-13, 2002.
  2. J. Park, K. Fukuda, and Q. Liu, "Steady-state and transient CHFs in various liquids due to exponentially increasing heat inputs", Proceedings of The 3rd Asian (OCMT-QDU) Cooperative Technology and Education Conference, pp. 5-10, 2008.
  3. B. P. Avksentyuk and N. N. Mamontova, "Characteristics of heat transfer crisis during boiling of alkali metals and organic fluids under free convection conditions at reduced pressure", Prog. Heat Mass Transfer, vol. 7, pp. 355-362, 1973.
  4. A. Sakurai, M. Shiotsu, and K. Hata, "New transition phenomena to film boiling due to increasing heat inputs on a solid surface in pressurized liquids", Instability in Two Phase Flow Systems, vol. HTD-260, no. H00838, pp. 27-39, 1993.
  5. J. Y. Chang, S. M. You, and A. Haji-Sheikh, "Film boiling incipience at the departure from natural convection on flat, smooth surfaces", Journal of The American Society of Mechanical Engineers, vol. 120, pp. 402-409, 1998.
  6. A. Sakurai, M. Shiotsu, and K. Fukuda, "Pool boiling critical heat flux on a horizontal cylinder in subcooled water for wide ranges of subcooling and pressure and its mechanism", Proceedings of the American Society of Mechanical Engineers Thirty-first National Heat Transfer Conference, vol. HTD-326, pp. 93-104, 1996.
  7. A. Sakurai, "Mechanisms of transitions to film boiling at CHFs in subcooled and pressurized liquids due to steady and increasing heat inputs", Nuclear Engineering and Design, vol. 197, pp. 301-356, 2000. https://doi.org/10.1016/S0029-5493(99)00314-3
  8. K. Fukuda, M. Shiotsu, and A. Sakurai, "Transient pool boiling heat transfer due to increasing heat inputs in subcooled water at high pressures", Proceedings of the 7th International Meeting on Nuclear Reactor Thermal Hydraulics, Saratoga Springs, vol. 1, NUREG/CP-0142, pp. 554-573, 1995.
  9. S. S. Kutateladze, "Heat transfer in condensation and boiling", AEC-tr-3770, USAEC 1959.