The Analysis of PWR SBO Accident with RELAP5 Based on Linux

Abstract

RELAP5 is a relatively advanced light water reactor transient hydraulic and thermal analysis code, and it owns the signality of the safe-operating of nuclear reactor system when the safety analysis and operating simulation of the system was done with RELAP5. The RELAP5 operating mode based on Linux operating system was presented in this paper, utilizing Linux operating system's powerful document processing capabilities to deal with the output file of the RELAP5 for the valid data directly, and taking advantage of the system's programmable capabilities to improve the drawing functions of RELAP5. After the operating in Linux system, the precision of the calculating results is guaranteed and the period of the computing is shortened. During the work, for PWR Station Blackout (SBO) accident, the computing with RELAP5 based on Linux and Windows was respectively made. Through the comparison and analysis of the accident response curve of the main parameters such as power of nuclear reactor, average temperature and pressure of primary loop, it shows the operating analysis of nuclear reactor system is safe and reliable with RELAP5 based on Linux.