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Topic starter
2023-08-07 6:30 pm
Hello, I have been able to make triboelectric generators. It's relatively simple and a good demonstration project for students. One of the most frequent questions I get from students is "but what use is it or how do we use it?" so I try to have a series of projects that not only demonstrate the underlying principles but also how to translate that into practical use. I am not finding a great deal of information on the storage of this energy generation method. From what I have researched it looks like such a system might be something along the lines of generator - voltage regulator - capacitor(s) - battery management circuit - battery with diodes in the appropriate places to prevent reverse current flows. I am unsure if this would be the correct order of components and what component parameters (eg capacitor size, how many etc) would be. I have based the generator on a couple of videos which I'll link to here and I have the PDF of the science article it is all based on if that would be of use.
It can be done.
2023-08-07 10:06 pm
The Piezo electric circuits I put in your intro thread should get you started. You're looking at very high voltage for mere pico-seconds of duration on that water generator. The diodes/capacitor circuit should be able to build-up a charge that can be released to a battery or to some other desired experiment.
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Topic starter
2023-08-08 7:24 pm
@inq Thanks for not just fobbing it off as too insignificant an amount of power, yes it is high voltage, about 130v if I recall correctly, for short time but in the science paper I mentioned it said the energy density is something like 700W/m^2 and it lights that multitude of LED's so there has to be useful power there. The question is how to get at it in a useful manner. Kids use batteries every day so if we can get it into a battery the practicality is instantly apparent to them.
It can be done.