Thermal hydraulic Analysis of VVER-1000 Condenser by RELAP5 Code

Masoume Maleki Rizi¹ Kamran Sepanloo² Ehsan Zarifi³

1) Department of Nuclear Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
2) Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran
3) Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran

Publication : 2nd International Conference On Research Science And Technology(2rstconf.com)
Abstract :
From the point of view of plant availability, condenser performance is extremely important. It is even more crucial in cases of aged NPPs. Condenser performance plays a key role in nuclear power plant safety. For the analysis of a nuclear power plant, it is essential to have a reliable thermal-hydraulic model of condenser. The aim of this study is to conduct a thermal-hydraulic analysis of a Bushehr VVER-1000 reactor condenser. This paper provides a semi two dimensional thermal-hydraulic model of the condenser using the RELAP5 code. Two main advantages of the present model are the application of a valid nodalization method and a consideration of the cross-flow effects. The obtained results from the RELAP5 steady state analysis were in reasonable agreement with the Bushehr NPP Final Safety Analysis Reports (FSAR).
Keywords : condenser Bushehr NPP thermal-hydraulic analysis RELAP5 code