Electricity is energy, as we know, and that means that it seems feasible that music and sound wave energy should be able to create electricity. It seems plausible because it is plausible! The concept of being able to create electricity with sound waves has been around for some time. In fact, a device called an acoustic heat engine has been in existence for many years.
However, now that more and more people are starting to look at various types of alternative energy sources, they are again looking into the potential of these particular devices and technology. By tweaking the devices slightly and adding new technology, they are starting to develop ways by which they can create actual energy that is usable.
How Does It Work?
The concept behind the machine is actually rather simple. The acoustic heat engines right now can generate small amounts of electricity by using a copper plate to conduct heat to a material that has a high surface area. One of the common materials used is glass wool. This heats the air that surrounds it, and then that hot air creates a sound wave of a single frequency. This will then vibrate a piezoelectric electrode, and this is what is going to produce the voltage.
As mentioned, this technique currently is only able to generate electricity in small amounts, but many believe alterations to the technique could produce much better results.
Benefits of Sound Waves for Electricity
As these machines are getting better and better, you will find that they can offer quite a few benefits. They have fewer parts than other types of machines have, and that means that they are not as prone to breaking down and require far less maintenance.
One of the questions that many people ask is whether the machines can generate a sound that people can hear. If they are noisy, wouldn’t it only cause noise pollution? While some of the older machines have low tones that are audible, things are changing in this area as well. As the machines become more effective and smaller, the tones are higher, and eventually they are going to be above the range of human hearing.
The possibilities of this type of technology are quite exciting. One of the methods that scientists believe might be feasible in the future is to use these acoustic heat engines to gather the heat from cooling towers at nuclear facilities to produce more energy.
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