Electrokinetic energy conversion in a finite length superhydrophobic microchannel
Electrokinetic energy conversion in a finite length superhydrophobic microchannel
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DOI：
10.1016/j.cplett.2018.05.007
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发表时间：
2018-07-01
影响因子：
2.8
通讯作者：
Chini, S. F.
中科院分区：
文献类型：
--
作者：
Malekidelarestaqi, M.;Mansouri, A.;Chini, S. F.
我们研究了超疏水壁对具有超疏水壁的有限长微通道中电动力学现象的影响（瞬态和稳态）。我们实现了超疏水性的影响，使用Navier滑移长度。为了包括双电层的重要性，我们相对于德拜长度（kappa（-1））缩放滑移长度。当滑移长度从0增加到144 nm（1.5 kappa（-1））时，流动电流、流动电位、流量和动能转换分别增加了2.55、2.44、1.8和3.4倍。每个微通道的电动能转换是在皮瓦的数量级。为了产生更多的能量，应该使用微通道阵列。(C)2018 Elsevier B.V.版权所有。
We investigated the effect of superhydrophobic walls on electrokinetics phenomena in a finite-length microchannel with superhydrophobic walls (in both transient and steady-state). We implemented the effect of superhydrophobicity using Naviers slip-length. To include the importance of the electric double-layer, we scaled the slip-length with respect to Debye-length (kappa(-1)). By increasing the slip-length from 0 to 144 nm (1.5 kappa(-1)), streaming-current, streaming-potential, flow-rate and electrokinetic energy conversion increased by 2.55, 2.44, 1.8, and 3.4 folds, accordingly. The electrokinetic energy conversion of each microchannel was in the order of picowatt. To produce more energy, an array of microchannels should be used. (C) 2018 Elsevier B.V. All rights reserved.