The plot is the kind of typical one that moves me to tears. However, there are many technical problems in it, and the engineer man said that he couldn't stand it. I played with this kind of bicycle generator when I was a child, and I followed my father to build an aquarium at home. I am quite familiar with the electric power, head, and water flow of this low-power water pump. As far as the depth of the well in the video, the water output, and the pump needs 100 watts, I have assumed the minimum value.
Then back to the generator, I just happened to have one. The power is small and the loss is large. The key loss is the wear of the friction wheel on the top of the generator to the tire, and the wear of the main shaft of the generator. These things are not designed to last for a long time. I only use it when I occasionally walk at night. Have you tried using it continuously for more than a week? Immediately disintegrate for you to see.
Let's talk about the power of this generator. It is designed to supply a small light bulb. How much power do you think it has? 12 watts are in the sky, and the speed must be fast to reach the rated voltage.
Let's talk about the settings in the movie, first charge the battery, and then use the battery to power the water pump, which consumes more than 50% of the power. Now everyone can see the car around, open the hood and look at the battery inside, try how heavy it is, and William is seen many times in the movie picking up that battery with ease. Hehe, it can be seen that the battery capacity is very small, plus it is a waste battery, the capacity is discounted to shit, use this to power a 100-watt water pump, hehe
Even if it can be done, considering charging first and then supplying power, can such a small generator power the water pump for 10 minutes in 24 hours?
Finally, why don't there be water wells to be irrigated manually? Willing to starve to death?
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