Magnetically-driven heat transport device using a binary temperature-sensitive magnetic fluid
Magnetically-driven heat transport device using a binary temperature-sensitive magnetic fluid
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使用二元温敏磁性流体的磁驱动传热装置
DOI：
10.1016/j.jmmm.2010.11.050
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发表时间：
2011
影响因子：
2.7
通讯作者：
Xiao-Dong Niu
中科院分区：
文献类型：
--
作者：
Yuhiro Iwamoto;Hiroshi Yamaguchi;Xiao-Dong Niu
在非均匀磁场中，沸腾两相温度敏感磁流体（TSMF）流动中的磁体力可以有效地增加磁流体的驱动力。基于这一机制，本研究提出了一种二元TSMF，即TSMF与低沸点饱和温度有机溶液的混合物，用于传热装置中以增强其循环。为了考察其在热传导装置中的性能，对不同加热温度、不同磁场、不同加热段倾角下的压差进行了实验和理论研究。结果表明，由于测试流体中出现了更多的气相，其磁化强度降低，驱动力显著增加。在低磁场条件下，当倾角接近60°时，驱动力显著增强，而在高磁场条件下，在倾角0°~ 30°和60°~ 90°范围内，驱动力受磁力的影响显著增强。
The magnetic body force in boiling two-phase temperature-sensitive magnetic fluid (TSMF) flow is known to effectively increase the driving force of magnetic fluid in a non-uniform magnetic field. Based on this mechanism, in the present study, a binary TSMF, which is a mixture of the TSMF and a low-boiling-saturation-temperature organic solution, is proposed to be used in a heat transport device to enhance its circulation. In order to see its performance in the heat transport device, the pressure difference at different heated temperatures, magnetic fields and inclination angles of the heating section are investigated experimentally and theoretically. Results showed that the driving force increases remarkably due to more gas phase appearing in the test fluid and the magnetization of it decreasing. At low magnetic field the driving force is enhanced greatly when the inclination angle is close to 60°, while at high magnetic field the driving force is remarkably enhanced due to the effect of the magnetic force in the inclination angle range from 0° to 30° and 60° to 90°.