Evaluation of heat transfer enhancement on heat transfer device by magnetothermal force

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05838
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Thermal engineering
• Research Institution: Osaka Prefecture University
• Principal Investigator: Masayuki Kaneda 大阪府立大学, 工学(系)研究科(研究院), 准教授 (50346855)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 熱伝達率 / 熱交換器 / 外部磁場 / 常磁性流体

Outline of Final Research Achievements

To improve the heat transfer characteristics, the effect of magnetic force (magnetothermal force) is evaluated quantitatively. First, a pipe flow with heat exchange from the wall is considered. It is found that, the heat transfer is locally affected such as enhancement and suppression. The tendency is like a rib mounted in the pipe wall for heated case, and bump for cooled case. Next, vertical parallel heated plates is considered for fin heat exchanger. There are similar tendency found. Additionally, the effect becomes different when the magnetic field is presumed by a analytical equation of block magnet and that induced by electric wires.

Free Research Field

熱流体工学