DOI QR코드

DOI QR Code

피동충수용 혼합형 안전주입탱크의 압력평형에 관한 이론적 해석 및 시험적 연구

Study on the Pressure Balance of the Hybrid Safety Injection Tank

  • 투고 : 2015.11.03
  • 심사 : 2016.01.21
  • 발행 : 2016.03.31

초록

피동충수용 혼합형 안전주입탱크는 한국원자력연구원에서 제안한 원자력 피동안전계통의 한 종류로, 안전주입탱크의 상부와 가압기를 연결하여 모든 운전압력 조건에서 냉각수 주입이 가능하도록 개선한 시스템이다. 본 연구에서는 피동충수용 혼합형 안전주입탱크, 가압기와 원자력압력용기에 대한 압력 네트워크를 통해 피동충수용 혼합형 안전주입탱크와 가압기의 압력이 평형이 되는 조건을 이론적으로 도출하였으며, 개별효과시험장치를 이용하여 안전주입탱크에서 발생하는 다양한 열수력 현상(증기응축 및 열혼합 현상)들을 파악하였다.

The Hybrid Safety Injection Tank is a passive safety injection system that enables the safety injection water to be injected into the reactor pressure vessel throughout all operating pressures by connecting the top of the SIT and the pressurizer(PZR). In this study, the condition for balancing the pressure between the Hybrid SIT and PZR was derived theoretically. The pressure balancing condition was set at the point where the velocity of the Hybrid SIT coolant injected into the Direct Vessel Injection(DVI) line was at or above zero. If the condition was derived from a pressure network for the Hybrid SIT, pressurizer, and reactor pressure vessel, the pressure difference between the pressurizer and SIT is less than 0.07 MPa.

키워드

참고문헌

  1. Chang, S.H., NO, H.C., Baek, W.P., Lee, S.I., Lee, S.W., Conceptual design of CARR passive PWR 1300MWe (CP-1300), Nucl. Eng. Int., February, 1997.
  2. Tuunanen, J., Riikonen, V., Kouhia, J., Vihavainen, J., Analyses of PACTEL passive safety injection experiments GDE-21 through GDE-25., Nucl. Eng. Des. Vol.180, pp.67-91, 1998. https://doi.org/10.1016/S0029-5493(97)00306-3
  3. Tuunanen, J., Vihavainen, J., D'Auria, F., Kimber, G., Assessment of passive safety injection systems of ALWRs, Final report of the European Commission 4 th Framework Programme, 1999.
  4. Zejun, X., Wenbin, Z., Hua, Z., Bingde, C., Guifang, Z., Dounan, J., Experimental research progress on passive safety systems of Chinese advanced PWR, Nucl. Eng. Des. Vol.225, pp.305-313, 2003. https://doi.org/10.1016/S0029-5493(03)00178-X
  5. Sibamoto, Y., Summary on natural circulation phenomena observed in ROSA-AP600 test, IAEA-TECDOC-1677, 286-298, 2006.
  6. Kwon, T,. Euh, D.J., Song, C., Baek, W., Passive high pressure safety injection tank system (HPSIT) for responding to station blackout (SBO) and Lossof- Coolant Accidents (LOCA), US patent. Pub. No. US 2012/0263268, 2012.
  7. Kwon, T, Park C.K., Hybrid SIT for passive safety system, Trans. of the KNS Spring Meeting, Gwangju, Korea, May 30-31, 2013.
  8. Jeon, I.S., Kang, H.G., Development of an operation strategy for a Hybrid Safety Injection Tank with an active system. Nucl. Eng. Technol. Vol.47, pp.443-453, 2015. https://doi.org/10.1016/j.net.2015.01.008