[Q] creating sound waves with heated gases

[plumber]

I vaguely remember some tech papers on creating mechanical energy by heating various gases under pressure at one end of a sealed tube (wave generator) this produces sound waves through the gas, which impact a diaphragm at the other end of the tube. As this diaphragm pulses, mechanical energy is transferred to a power train, or medium for storing that energy. The more the gas is compressed under pressure, the less heat needed to make these sound waves. My question is this: What the heck is the name for this process?

Is it old or semi-new? The solar applications are obvious. Can anyone describe in more detail the sciences involved with sound waves and heated, pressurized gases? To me, gas molecules get excited under pressure and heat... too much and boom! I am not grasping the directional flow of sound waves. Why sound waves? why not chaotic molecules bouncing everywhere? Is it the linear shape of the tube that causes direction? But why and how come sound waves? faster and faster pulsing or ricochet would explain the diaphragm movement but we are talking rhythmic, continuous pulsing. Something sound waves could do. I truly don't know...but now I need to. Any help would be appreciated.

thanks, plumber.

[freeztar]

We had a conversation about this a while back, but I can't remember the thread. :hihi:

 

Perhaps someone else can?

[Turtle]

sounds familiar to me. perhaps you're thinking of Tesla's work? :hihi:

 

Nikola Tesla: Mechanical Oscillator ~ US Patent # 514,169 & # 517,900 ~ Tele-Geodynamics

The objective of the Tesla oscillator-generator is to provide a mechanism capable of converting the energy of compressed gas or steam into mechanical power. Since the oscillator-generator is denuded of all governing devices, friction is almost non-existent. In other words, the piston floats freely in air and is capable of converting all pressure into mechanical energy.

 

Our objective in building the engine is to provide an oscillator which under the influence of an applied force such as the elastic tension of a gas under pressure will yeild an oscillating movement which within very wide limits, will be of constant period, irrespective of variation of load, frictional losses, ...

[Glenn Lyvers]

I know there was a refrigerator which worked on sound waves. Most likely this technology. That might help you search.