COMPUTATIONAL STUDY OF THE SAFETY INJECTION TANK PERFORMANCE

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Inside the Safety Injection Tanks (SIT) of APR1400s, fluidic devices (FD) are installed to passively control the mass flow discharged from the SIT, thus, eliminating the need for low pressure safety injection pumps. As passive safety mechanisms are emphasized more and more nowadays, it has become more important to understand the flow structure and the loss mechanism within the fluidic device. However, current computational fluid dynamics (CFD) calculations have had limited success in predicting the fluid flow accurately. This study proposes to find a more exact result using CFD and more realistic modeling. Preliminary CFD results match quite well with the experiment data. Comprehensive CFD results also match well with the experiment results and show interesting patterns which was analyzed using Fast Fourier Transform(FFT). Calculation is still in progress but current status shows promising results
Publisher
OECD-NEA
Issue Date
2016-09-14
Language
English
Citation

Computational Fluid Dynamics for Nuclear Reactor Safety (CFD4NRS)

URI
http://hdl.handle.net/10203/215181
Appears in Collection
NE-Conference Papers(학술회의논문)
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