Thermoacoustic generator

[Remundo]

Vooouuiiii! So I’ll put a speaker in there to make sine current

[le_courtois]

Vooouuiiii! So I’ll put a speaker in there to make sine current

Yes, by the way, to recover energy, is it better to have a speaker or a microphone?

Well the experience of nlc proves at least one thing: I am a "b * rne" in experimentation. And to think that I have a graduate degree in ... BIP ... experimental, shame.
Okay, I bought some gas and I'm going to get a pyrex test tube. I think to start again this end of cemaine.

In addition, nobody said anything about the conical holes: false good idea or well?

A+
Gilles

[nlc]

Uh, small precision, it was not mon experimentation !! ))))

For your question, a microphone in principle is like a speaker but much smaller. Finally, it depends on what type of microphone we are talking about.

So it's better to have a good speaker, with a good big magnet. But hey in the end, there is surely something more suitable, a real linear generator in fact.

[le_courtois]

Uh, small precision, it was not mon experimentation !! ))))

Yes, it was just a shortcut and a repeat of what Remundo had said.

But hey in the end, there is surely something more suitable, a real linear generator in fact.

That, I suspected. But I also suspect that it is not under the hooves of a horse (I do not find the smiley that is going well, but there: total acquiessement without any animosity).
Is there a simple way to measure the energy output from this kind of ... experimenting?

[nlc]

I don't know anything about measuring energy.
But if we reason on a loudspeaker, the electrical energy that we provide is transformed into an acoustic pressure. Except for the output, this electrical energy is therefore necessarily converted by the loudspeaker into acoustic "energy"?

Now is there a way to know from "the volume" of sound, its potential energy, I don't know at all, it would take the advice of a specialist in acoustics

[Remundo]

Good evening Le_Courtois

Vooouuiiii! So I’ll put a speaker in there to make sine current

Yes, by the way, to recover energy, is it better to have a speaker or a microphone?

You are asking a good question. From a technological point of view, microphone and speaker are the same object, simply the acoustoelectric conversion is done:
- electric -> noise for the loudspeaker
- noise -> electric for the microphone.

For better power, you would need a speaker, because the microphones are not designed for powers beyond the human channel (a few W) while the most powerful HP spit out hundreds of W.

For your little tubes, a microphone certainly does the trick

Now, the ideal would be to design a specific HP to the resonance frequency of your tube / stack. That is to say that it reacts very particularly to the fundamental of the signal which excites it ...

But no, you are not a burne! You have to take the time and find the right gear, that's all

@+

[nlc]

With that, I'm going to stake myself, it's been 2 nights that I exceed 2 hours of the mat to dig the subject, and there I can do more!

Good night !

[Remundo]

I don't know anything about measuring energy.
But if we reason on a loudspeaker, the electrical energy that we provide is transformed into an acoustic pressure. Except for the output, this electrical energy is therefore necessarily converted by the loudspeaker into acoustic "energy"?

Now is there a way to know from "the volume" of sound, its potential energy, I don't know at all, it would take the advice of a specialist in acoustics

Well you need an acoustic dBmeter ... Compared to the videos I saw, (and especially heard ), it makes the noise of a TV "not set too loud", it is about the conversation between 2 people, s between 50 and 70 dBacoustics
here look:
http://www.bestofmicro.com/guide/base-E ... 5OQ==.html
It is well summarized.

@ + and good crafts to both of you!

[Capt_Maloche]

Thanks for the video

This pseudo stirling intrigues me

relatively simple to make

[nlc]

Industrial thermoacoustic refrigerators:

http://www.qdrive.com/

The reverse of what we are trying to do, in short ...
But as the effect is normally reversible