Journal of Energy Engineering (에너지공학)

The Korean Society for Energy (한국에너지학회)
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Review of Steam Jet Condensation in a Water Pool

수조내 증기제트 응축현상 제고찰

  • Published : 2003.06.01
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Abstract

In the advanced nuclear power plants including APR1400, the SDVS (Safety Depressurization and Vent System) is adopted to increase the plant safety using the concept of feed-and-bleed operation. In the case of the TLOFW (Total Loss of Feedwater), the POSRV (Power Operated Safety Relief Value) located at the top of the pressurizer is expected to open due to the pressurization of the reactor coolant system and discharges steam and/or water mixture into the water pool, where the mixture is condensed. During the condensation of the mixture, thermal-hydraulic loads such as pressure and temperature variations are induced to the pool structure. For the pool structure design, such thermal-hydraulic aspects should be considered. Understanding the phenomena of the submerged steam jet condensation in a water pool is helpful for system designers to design proper pool structure, sparger, and supports etc. This paper reviews and evaluates the steam jet condensation in a water pool on the physical phenomena of the steam condensation including condensation regime map, heat transfer coefficient, steam plume, steam jet condensation load, and steam jet induced flow.

APR1400과 같은 차세대 원자력발전소에서는 원자로 안전성을 증진시키기 위하여 SDVS와 같은 계통을 도입하고 있다. 완전급수상실사고와 같은 경우는 POSRV가 개방되어 수조내 Sparger를 통하여 증기가 방출·응축되게 된다 증기가 응축함에 있어서 설계에서 고려해야 될 사항은 하중과 수조 혼합이며 증기제트 응축의 물리적 현상 이해를 통하여 적절한 대처를 마련할 수 있다. 수조내 Sparger를 통하여 분사되는 증기 응축에 대하여 하중과 수조 혼합 검토에 도움이 될 수 있도록 증기제트 응축의 물리적 현상 이해에 대한 검토와 평가를 수행하였다.

Keywords

References

  1. J. of the Korean Nuclear Society v.29 no.1 An Experimental Investigation of Direct Condensation of Steam Jet in Subcooled Water Kim,Y.S.(et al)
  2. 1st Syposium on Nuclear Thermal Hydraulics and Safty, NTHAS98 Experimental Study on Dynamic Pressure Pulse in Direct Contact Condensation of Steam Discharging into Subcooled Water Cho,S.(et al)
  3. Int. J. Multiphase Flow v.6 Condensation-Driven Fluid Motions Block,J.A. https://doi.org/10.1016/0301-9322(80)90042-7
  4. Convective Boiling and Condensation Collier,J.C.;Thome,J.R.
  5. Int. J.Heat Mass Transfer v.10 The Condensation Coefficient of Water Mills,A.F.;Seban,R.A. https://doi.org/10.1016/0017-9310(67)90052-X
  6. National Heat Tranfer Conf.(HTC) v.10 Determination of the Steam-Water Direct Contact Condensation Heat Tranfer Coefficients Using Interfacial Transport Models Kim,Y.S.;Park,J.W.
  7. Journal of Japanese Nuclear Society v.25 no.5 Pressure Variation due to Vapor Condensation in Liquid,(Ⅰ) Classification of Phenomena and Study on Chugging Fukuda,S.;Saitoh,S.
  8. AIChE Journal v.19 no.3 Penetration of Vapor Jets Submerged in Subcooled Liquids Weimer,J.C.(et al) https://doi.org/10.1002/aic.690190321
  9. Proc. of the 3rd Multi-phase Folw and Heat Tranfer Symposium-Workshop Experimental Study on Steam Jet Condensation in Subcooled Water Pool Tin,G.D.(et al)
  10. Seoul National University Ph.D Thesis Dynamic Characteristics of Steam Jet Condensation in Sparger Hong,S.J.
  11. Journal of Japanese Nuclear Society v.24 no.6 Pressure Variation due to Vapor Condensation in Liquid,(Ⅱ) Phenomena at Large Vapor Mass Flow Foux Fukuda,S.
  12. Proc. ANS-ASME-NRC Int. Topical Meeting on Nuclear Reactor Thermal Hydraulics v.1 Studies on the Dynamic Phenomena Caused by Steam Condensation in Water Arinobu,M
  13. ASME J. of Heat Transfer v.104 Hydraulics of a Subsonic Vapor Jet in Subcooled Liquid Simpson,M.E.;Chan,C.K. https://doi.org/10.1115/1.3245083
  14. Proc. of 3rd Int. Topical Meeting on Reactor Thermal Hydraulics Experimental Study on the Unstable Direct Contact Condensation Regimes Damasio,C.(et al)
  15. KSME Int. Journal v.15 no.4 Multiple -Hole Effect on the Performance on a Sparger during Direct Contact Condensation of Steam Cho,S.(et al) https://doi.org/10.1007/BF03185109
  16. Nunclear Engineering and Design v.204 Pressure Suppression Pool Mixing in Passive Advanced BWR Plants Gamble,R.E.(et al) https://doi.org/10.1016/S0029-5493(00)00363-0
  17. The Theory of Turbulent Jets Abramovich,G.N.
  18. Proc. 5th Int. Heat Transfer Conf. v.3 Basic Study on Vapor Suppression Kudo,A.(et al)
  19. Proc. of 5th International Heat Transfer Conf. v.3 Vapor-Liquid Interaction in a High Velocity Vapor Jet Condensation in a Coaxial Water Flow Young,R.J.(et al)