Development of a Capillary Plasma Pump with Vapour Bubble for Water Purification: Experimental and Theoretical Investigation
Development of a Capillary Plasma Pump with Vapour Bubble for Water Purification: Experimental and Theoretical Investigation
复制标题
用于水净化的带有气泡的毛细管等离子泵的开发：实验和理论研究
DOI：
10.1088/0022-3727/49/40/405202
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
Kazuma Ishihata and Hideya Nishiyama
中科院分区：
文献类型：
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作者：
Satoshi Uehara;Kazuma Ishihata and Hideya Nishiyama
本文介绍了一种小型毛细管气泡放电驱动反应等离子体泵的研制。该装置利用等离子体放电产生的化学物种分解水中的污染物。由此产生的气泡流消除了对外部气体供应或泵来输送水的需要。一个高速摄像机被用来调查负责的泵送效果，这是通过选择毛细管的形状，使内的气泡喷射增强泵送运动所需的“自我重复”的动作来实现的气泡动力学。我们的实验表明，最佳的气泡产生需要消耗的功率为17.8 W。建立了一个理论模型来研究泵送机理。我们解决了与液体振荡在U形水库采用非均匀的横截面积在我们的模型中的问题。通过使用OH自由基的发射光谱和通过测量亚甲基蓝的分解来确认该装置的化学反应性。
This paper describes the development of a small-sized reactive plasma pump driven by capillary bubble discharge for the purification of treated water. The apparatus we developed decomposes the pollutants in the water by using chemical species generated by the plasma discharge. The resulting stream of bubbles obviates the need for an external gas supply or pump to transport the water. A high-speed camera was used to investigate the bubble dynamics responsible for the pumping effect, which is achieved by selecting the shape of the capillary such that the bubble ejections within enhance the'self-repetition'action required for the pumping motion. Our experiments showed that optimal bubble generation requires a consumed power of 17.8 W. A theoretical model was developed to investigate the pumping mechanism. We solve the problems associated with liquid oscillations in the U-shaped water reservoir by employing a non-uniform cross-sectional area in our model. The chemical reactivity of the device was confirmed by using emission spectroscopy of OH radical and by measuring the decomposition of methylene blue.