In general, the turbines of hydroelectric power plants are shaped like a turbine, just like the propellers of an airplane or the blades of an electric fan, but they have more blades, are smoother and are closed, so that the energy conversion efficiency is higher. . For specific production, you can imitate the structure inside the tap water meter. It has this kind of structure inside, and it's very efficient.
Why is it so expensive to produce electricity, but it's so cheap when water is part?
In principle, there is not much difference. They both rely on water to drive the rotor to turn to produce electricity. However, hydropower generally refers to the use of height differences in reservoir water levels to produce electricity, which requires larger devices. The tap water pipes are so thin and the installation is small. I'm afraid the difference between the two is not minimal in terms of technical details. As far as I know, hydroelectric technology is mature. If hydroelectric technology is used as a benchmark in producing electricity from tap water, it will at most be considered a practical new technology and not an invention.
And from the point of view of energy saving, the water pressure in the water pipe is obtained by human consumption of energy. Adding devices to the water line will definitely cause the water to lose some water pressure, meaning the water company's pressure. energy is lost. The ideal is to convert the water company's energy into your own electricity without loss, while sacrificing your own water pressure. There is neither an increase nor a saving in energy for society as a whole.
I want to use watertap to connect a hydroelectric generator. What size hydroelectric generator can be used to charge the battery?
The water treatment process is relatively simple and the added value is not high, so the price is cheap;
The power generation process is relatively complicated and the added value is high. , so the electricity bill is expensive;
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Desalination of sea water is much more difficult than transforming river water into tap water. If one day we can only rely on seawater desalination, then the price of seawater will be high. the water will certainly be much higher than today. The exact amount of water there is, only God knows.
The current to charge the battery is generally 5 to 6 amps. If you charge one 12 volt battery at a time, the motor power should be at least about 100 watts (the resoperating power should be around 100 watts). considered), and it should be 12 Volts.
You can calculate it like this:
Water flow (kg/s) multiplied by the acceleration of gravity ( 9.8 Newtons/kg ) multiplied by the water impact height = power
Flow rate = the cross-sectional area of the pipeline multiplied by the flow rate and divided by the specific gravity of the water.< /p>
Generators of the same model are connected in parallel, as long as the combined power is sufficient.
Battery charging time depends on battery capacity and charging current .