2018 Annual Meeting

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Oral presentation

III. Fission Energy Engineering » 304-1 Thermal Hydraulics, Energy Conversion, Energy Transfer, Energy Storage

[1B08-14] Boiling and Condensation

Mon. Mar 26, 2018 2:45 PM - 4:40 PM Room B (C1-311 -C1 Building)

Chair: Masahiro Furuya (CRIEPI)

4:15 PM - 4:30 PM

[1B14] CHF and Near-Wall Boiling Behaviors in Saturated and Subcooled Pool Boiling on Vertical Surface

*Tsubasa Yamamoto1, Katsuya Udagawa1, Hiroto Sakashita1 (1. Hokkaido University)

Keywords:Critical heat flux, Pool boiling, Subcooled boiling, Vertical surface, Conductance probe, Macrolayer

The study measured the liquid-vapor behaviors near a heating surface using a conductance probe in saturated and subcooled pool boiling of water on the vertical surface at 0 to 30K subcooling, and specified the thicknesses of the macrolayer formed beneath vapor masses. Using the results, the CHF was predicted based on the macrolayer dryout model.