Influence of chamber dimensions on the performance of a conduction micropump

Abstract

An electrohydrodynamic (EHD) conduction micropump with symmetric planar electrodes is developed to investigate the effect of micropump chamber dimensions on static pressure and flow rate. The interdigitated electrodes are created on an FR4 CCL (copper clad laminate) using photolithography. The micropump consists of an electrode plate, chamber plate, top and bottom end cover. A 2D numerical simulation study is conducted to provide details about the ion distribution and fluid flow behaviors within a local domain of micropumps with different chamber height. Experimental results show that, by increasing chamber height, the static pressure and flow rate rise with a big slope under a chamber height of 0.2 mm, and henceforth decrease dramatically. The variation trends of static pressure and flow rate with an increase in chamber height are determined by the combination of ion concentration distribution and fluidic circulation formed between the two electrodes. Additionally, the effect of the chamber width and length is experimentally analyzed for optimum pressure and output flow rate.

A systematic overview of electrode configuration in electric‐driven micropumps

“…In order to investigate the effect of chamber dimensions on the efficiency of a conduction micropumps, Feng et al. [71] proposed a device with symmetrical electrodes that were constructed on an FR‐4 CCL (copper clad laminate). As depicted in Figure 4, the micropump included an electrode plate, chamber plate, top and bottom end cover.…”

“…The core objective of this part is to summarize previous numerical and experimental studies on EHD conduction pumping, mainly focusing on the dimension of micropumps with an arrangement of various electrodes. In order to investigate the effect of chamber dimensions on the efficiency of a conduction micropumps, Feng et al [71] proposed a device with symmetrical electrodes that were constructed on an FR-4 CCL (copper clad laminate). As depicted in Figure 4, the micropump included an In order to find the most efficient micropumps, various chamber height, width, and length were investigated using numerical optimization.…”

Influence of Electrohydrodynamic Flows on the Intensification of the Heat and Mass Exchange Processes. Part I. Electrohydrodynamic Flows and Characteristics of Single-Stage Electrohydrodynamic Pumps

“…С повышением температуры рабочего вещества улучшаются характеристики насоса (кривые 1, 2, 3 и 4, 5,6)…”

“…Простейшие макро-и микроэлектрогидродинамические насосы (ЭГДН) состоят из двух электродовэмиттера и коллектора различной конструкции [1][2][3][4][5][6], размещенных в диэлектрическом канале и подключенных к источнику высокого напряжения. Под действием электрического поля между эмиттером и коллектором в рабочей среде формируется избыточный заряд знака эмиттера.…”