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Created with Fabric.js 1.4.5 MIDAK-MIDIK Reverse electrowetting In its essence, the REWOD process is conceptually straight forward.The droplet and the electrode are connected to the external electrical circuit that provides a constant biasvoltage between the droplet and the electrode.External mechanical actuation is used to move the dropletin such a way as to force a decrease of its overlap with the dielectric-film-coated electrode. This results in the decrease of the total charge that can be maintained at the droplet liquidsolid interface. The excessive electrical charge then flows back through the electrical circuit that connects the droplet and the electrode,generating electrical current that can be used to power the external load.it can produce 103 Wm2 for one way. Midak-Midik is a technology tool that can changemechanical energy to electrical energybased on the reverse electrowetting Batrrai Silicon Chanel electric cable The following simple estimate illustrates the power that can be produced by a footwear-embedded microfluidic harvester using the REWOD process. Let us consider 2-m-long train of 1,000 conductive droplets, each 1 mm long separated by 1 mm spacers and positioned inside 1-mm-diameter circularcross-section channel with the total length of 2 m,The total area covered by such channel is about 40 cm2 or less than ¼ of the area of a typical human footprint.The total volume of the liquid contained in the channel would be about 4 ml, which makes it readily compatible with footwear. Assuming that the heel area is about 20 cm2, we estimate that the total midsole compression required to achieve 4 ml volume displacement is around 2 mm. Such a displacement is well below the level that might affect the person's gait. us consider 1-m-long train of 500 conductive droplets, each1 mm long separated by 1 mm spacers and positioned inside 1-mm-diameter circular crosssection channel with the totallength of 1 m. The total areacovered by such channelis about 10 cm2 or less than ¼ of the area of a typicalhuman footprint.The total volume of the liquid contained in the channel would be about4 ml, which makes it readily compatible with footwear. Assuming that the heel area is about 5 cm2,we estimate that the total midsole compression required to achieve 4 ml volume displacement isaround 2 mm. Such a displa-cemen is well below the level that might affect the person's gait. Hg liquid $ 19,472 Electrode(cooper) THE PART in this shoes IS:1. CHANEL in which there is electrode(copper), thin plastic film (dielectric) Ta2O5 and flouropolymer (Cytop), electric cable2. silicon bag in which there is conductive fluid (fluid hg)3. batrrai connected with electric cable. need 500 conductive droplets 4 ml need a copper plate with a thickness of 0.5 ml with a length of 2m $ 108,073 Electric cable need 3m electric cable $ 8,113 batrrai, silicon bag,thin electric film 1 batrrai 2 silicon bag(10cm)3 thin electric film with a length 2 m $ 50 $ 185,658 This leads to a total cost around Successful high-power mechanical energy harvesting using theproposed approach is contingent on solving three major problems,namely achieving high level of electrical energy generation per unitarea of the liquidsolid interface; attaining efficient mechanical actuation and electrical energy generation by the individual droplets;and demonstrating synchronous generation of electrical energy by a group of micro-droplets working in parallel.
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