期刊
APPLIED THERMAL ENGINEERING
卷 142, 期 -, 页码 255-261出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.applthermaleng.2018.06.064
关键词
Boiling heat transfer; Ferrofluid; Particle deposition; Magnetic field; Transient hot-wire
资金
- Australian Research Council [LP150100153]
Transient boiling heat transfer from an electrically-heated microwire in Fe3O4/water nanofluid (ferrofluid) was investigated for the first time. The transient temperature rise of the wire for different electrical currents was measured and compared with results for deionized water to highlight the effect of the magnetic particles on the heat transfer. It was observed that below the normal boiling point of water, the ferrofluid enhances the heat transfer. However, above the boiling point, the heat transfer ability of the ferrofluid significantly decays due to deposition of particles on wire. Scanning electron microscope (SEM) images of the wire showed that the ferromagnetic particles form a coating layer on the wire of various morphologies depending on electric current and duration of heating. Parameters affecting both heat transfer and particle deposition such as current, time and concentration of ferrofluid were investigated. It was observed that the rate of particle deposition on wire and the thickness of the coating layer increases by increasing current, time and concentration of ferrofluid.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据