Intelligent fluid measurement and transport system and control byusing intelligent functional fluids

在这项研究中，我们的目标是开发高性能的工业机器，利用诸如磁性液体之类的“智能”和“功能”流体。为此，我们开展了磁流体测量装置、新型能量转换与传输系统和“磁弹性体”流量控制系统的基础和应用研究。在液体中加入少量的磁性液体，即可实现气液两相流含气率、气泡速度和流型的测量。采用磁流体和低沸点液体混合的能量输送系统，可以实现热量在水平和垂直方向上的自循环。利用导电聚合物的磁流体动力学(MHD)发电装置具有电导率随流体温度升高而升高的特点。实验测得的电压输出值与理论值吻合较好。采用磁性弹性体的流量控制系统通过控制磁场可以有效地控制流量。

In this study, our aim is to develop high-performance industrial machines utilizing "Intelligent" and "Functional" fluids such as magnetic fluids. For this aim, we have performed basic and applied studies on measurement devices using the magnetic fluid, a novel system for energy conversion and transportation and a flow rate control system using "magnetic-elastomer". The devices for measuring of void fraction, bubble velocity and flow regimes of gas-liquid two-phase flow can be achieved by adding a quite small amount of the magnetic fluid to liquid phase. The energy transportation system using a mixture of "magnetic fluid"and "low-boiling-point liquid" can achieve self-circulation of the heat in both horizontal and vertical direction. The MHD (Magnetic Hydro Dynamics) electric power generation device which utilize "electric conductive polymer" has a characteristic that conductivity rises with a rise of the fluid temperature. The output value of voltage by the experiment shows a good agreement to the theoretical value. The flow rate control system using magnetic elastomer is found to be able to control the flow rate effectively by controlling the magnetic field.