2002•Journal of Tsinghua University(Science and Technology)Requires access

Transient analyses of AC600 passive residual heat removal system using RELAP5

Yizhou Yan

Abstract

The transient behavior of the AC600 passive residual heat removal system (PRHR) was analyzed using RELAP5. A wall air heat transter correlation was added to the RELAP5 code. The modified code was then used to simulate the AC600 nuclear power plant with passive residual heat removal in emergency feed water tank (EFWT) start up mode during blackout accident. The results show that increasing the chimney height or the height difference between the steam generator and the air cooler increases the PRHR system heat removal capacity. The results are consistent with theoretical analysis.

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Key concepts: Blackout, Residual, Boiler (water heating), Transient (computer programming), Nuclear engineering, Environmental science, Chimney (locomotive), Nuclear power plant