Effect of surface wettability on boiling two-phase flow in a narrow channel

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K18318
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Nuclear engineering
• Research Institution: Kyoto University
• Principal Investigator: Ito Daisuke 京都大学, 複合原子力科学研究所, 助教 (30630024)
• Research Collaborator: Prasser Horst-Michael ETH Zurich, 教授
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 沸騰二相流 / 狭隘流路 / 中性子ラジオグラフィ / 液膜センサ

Outline of Final Research Achievements

To investigate the heat transfer and two-phase flow characteristics in a narrow rectangular channel, liquid film measurement system based on an electrical capacitance measurement was developed, and the measurement with sampling frequency of 10kHz which is similar to that of a conventional electrical conductance system could be conducted. In addition, neutron radiography system was also improved to enhance the temporal resolution. Finally, boiling heat transfer experiments with one-side heated narrow channel were performed and the possibility of the detailed measurement of two-phase flow structure in the narrow gap was shown.

Free Research Field

原子炉熱流動