As the sound is radiated into a hemisphere rather than a sphere, the surface area is halved.triforce said:
Ah! That makes sense!tech99 said:
Power from sound is generated through a process called piezoelectricity, where sound waves cause vibrations in certain materials, such as crystals or ceramics, which then produce an electric current.
The efficiency of power generation from sound varies depending on the specific materials and technology used. In the case of fans creating 12.56 watts 1km away, the efficiency is approximately 0.01%.
The distance at which sound-based power generation can work depends on the strength of the sound source and the sensitivity of the materials used. In the case of fans creating 12.56 watts, the distance is 1km, but with stronger sound sources and more sensitive materials, this distance could potentially be increased.
Power from sound has the potential to be used in a variety of applications, such as remote or off-grid power sources, energy harvesting from industrial noise, or even powering small electronic devices like sensors or wearables.
While power from sound has potential, there are also limitations. The efficiency is currently low and the technology is still in its early stages, so it may not be a viable option for large-scale energy production. Additionally, the source of the sound must be consistent in order to continuously generate power, and the materials used may be expensive or difficult to produce.