Spray System Assessment in Steel Containment of VVER-1000 Reactor with Using Probabilistic Methods

Masti, D; Khosroabadi, A; Rahmani Haghighi, A

doi:10.24200/nst.2018.227

Spray System Assessment in Steel Containment of VVER-1000 Reactor with Using Probabilistic Methods

Document Type : Scientific Note

Authors

D Masti

A Khosroabadi

A Rahmani Haghighi

https://doi.org/10.24200/nst.2018.227

Abstract

One of the most important safety systems is spray system which is located in steel containment and has been designed to limit radioactive materials release, specially iodine, and to reduce the pressure and temperature in steel containment during events. The functions of mentioned system have been evaluated by the NPP designer by using probabilistic methods and the Risk Spectrum code. Some of the equipment, however, have not been simulated in the implemented modeling. In this article, by using the probabilistic analysis and the SAPHIRE code, the importance of the spray system’s elements in steel containment has been analyzed and the probability of system failures in various conditions has been calculated.

Highlights

[1] V. khorrami, Using PSA method in reliability asseessment of emergency power supply of bushehr nuclear power plant and analyse of staion blackout accident, M.S. thesis, Sharif University, (1389).

[2] S. kordalivand, Analyse of inadvertent opening using PSA method and SAPHIRE code, M.S. thesis, Sharif University, (1393).

[3] Atomenergoproekt, Final Safety Analysis Report, Chapter 6, FSAR, Moscow, Editor. (2008).

[4] Atomenergoproekt, BNPP Probabilistic Safety Assessment, level 1, revision 3, state research, Design and Engineering Survey Institute, (2003).

[5] K.J. Kvarfordt, S.T. Wood, C.L. Smith, Systems Analysis Programs for Hands-On Integrated Reliability Evaluations (SAPHIRE) Code Reference Manual, INL/EXT-05-00644 Rev. 1, August (2008).

Keywords

Water Spray System

Safety Steel Containment

Probabilistic Safety Analysis (PSA)

Fault Tree

20.1001.1.17351871.1397.39.3.10.9

[1] V. khorrami, Using PSA method in reliability asseessment of emergency power supply of bushehr nuclear power plant and analyse of staion blackout accident, M.S. thesis, Sharif University, (1389).

[2] S. kordalivand, Analyse of inadvertent opening using PSA method and SAPHIRE code, M.S. thesis, Sharif University, (1393).

[3] Atomenergoproekt, Final Safety Analysis Report, Chapter 6, FSAR, Moscow, Editor. (2008).

[4] Atomenergoproekt, BNPP Probabilistic Safety Assessment, level 1, revision 3, state research, Design and Engineering Survey Institute, (2003).

[5] K.J. Kvarfordt, S.T. Wood, C.L. Smith, Systems Analysis Programs for Hands-On Integrated Reliability Evaluations (SAPHIRE) Code Reference Manual, INL/EXT-05-00644 Rev. 1, August (2008).