Active control of boiling heat transfer using magnetic functional fluid

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07335
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Fluid engineering
• Research Institution: Doshisha University
• Principal Investigator: Yamasaki Haruhiko 同志社大学, 研究開発推進機構, 助教 (10780900)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: 磁気機能性流体 / 沸騰熱伝達 / 気液二相流 / 数値シミュレーション

Outline of Final Research Achievements

It is found that volume of vapor bubble under non-uniform magnetic field decrease with increase of magnetic field intensity by both ways of electromagnetic induction method and optical visualization using a near infrared ray. Numerical simulation revealed that surface tension and magnetic buoyancy are dominant for bubble detachment
By applying non-uniform magnetic field to the heater surface, the heat transfer enhanced up to 13 % in fully developed nucleate boiling region. It is possible to actively control of boiling heat transfer by applying non-uniform magnetic field.

Free Research Field

流体工学