Countercurrent Flow Limitation in the Vertical Pipe of a Pressurizer Surge Line

Yasunori Yamamoto

Presentation information

Oral Presentation

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

[3K01-05] Two-Phase Flow and Phase Change 2

Fri. Sep 9, 2016 9:30 AM - 10:55 AM Room K (Kumume City Plaza - Assembly Room 1)

Chair: Susumu Yamashita(JAEA)

10:00 AM - 10:15 AM

[3K03] Countercurrent Flow Limitation in the Vertical Pipe of a Pressurizer Surge Line

(1)Effects of Diameters

*Yasunori Yamamoto¹, Michio Murase¹, Katsuya Mori², Akio Tomiyama² (1.INSS, 2.Kobe University)

Keywords:Pressurizer surge line, Vertical pipe, Countercurrent flow limitation, Kutateladze parameter, one-region calculation

In order to evaluate countercurrent flow limitation (CCFL) at the upper end of the vertical pipe in a pressurizer surge line, CCFL characteristics in a vertical pipe with the diameter of 300 mm were computed by using the one-region calculation model with existing correlation of interfacial shear stress based on air-water experiments.