Abstract
In the containment of nuclear power plants, wall film condensation occurs with non-condensable gases under accident conditions. With non-condensable gases, condensation heat transfer on the containment wall can be degraded significantly because of the accumulation of non-condensable gases near the condenser wall; therefore, an investigation into the wall condensation heat transfer is of great importance to nuclear reactor safety. In this study, wall film condensation with non-condensable gases was simulated using the CUPID code. To evaluate the heat and mass transfer coefficients, a wall function approach was adopted to save the computational cost. To validate the model, a COPAIN condensation experiment was simulated using CUPID. The calculation results were compared with the COPAIN experiment data and results from the commercial CFD code (STAR-CCM+) results, which used the resolved boundary layer approach. From the comparison, good agreements were obtained between the CUPID code and the other results.
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This paper was presented at the ICCHM2T2017, Sejong Hotel, Seoul, Korea, May 28 – June 1, 2017. Recommended by Guest Editor Heuy Dong Kim.
Jehee Lee is a Ph.D. student at Seoul National University (SNU), Seoul, Korea, under the supervision of Prof. Hyoung Kyu Cho. He received a B.S. degree in 2014 in nuclear engineering from SNU. He is currently working on CFD analysis and model development for wall condensation in PCCS.
Hyoung Kyu Cho is an Associate Professor in the Department of Nuclear Engineering at Seoul National University (SNU), Rep. of Korea. Prior to joining SNU, he was a staff scientist/engineer in the Thermal-Hydraulic Safety Research Department at Korea Atomic Energy Research Institute. He holds a Ph.D. in nuclear engineering, a M.S., and a B.S., all from SNU. He has a strong background in reactor thermal hydraulics, heat transfer, and fluid dynamics in both experiment and computation. With this capacity, he has been conducting researches in the fields of thermal hydraulics and safety in the advanced nuclear reactor systems. He has numerous co-authored journal articles, conference papers, patents, and technical reports.
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Lee, J., Park, GC. & Cho, H.K. Simulation of wall film condensation with non-condensable gases using wall function approach in component thermal hydraulic analysis code CUPID. J Mech Sci Technol 32, 1015–1023 (2018). https://doi.org/10.1007/s12206-018-0202-0
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DOI: https://doi.org/10.1007/s12206-018-0202-0