First test runs...
My engines 3:02
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I show the first test runs of the mostly 3D printed open source thermoacoustic Stirling engine which can be built by everyone to produce cheap DIY energy.
If you want to support me you get access to exclusive content: https://www.patreon.com/c/Stirlingengines https://www.youtube.com/channel/UCie-_1q_BTL_cpPN_6f0gHw/join
For regular updates and a discussion forum visit: https://ownenergy.org/
Thanks to Baptiste (alias Olympio) we now have a Discord server: https://discord.com/invite/TDABS5z2mT
It would be very nice if we could discuss there everything about Stirling engines, 3D printing and more, thank you very much Baptiste.
The thermoacoustic Stirling engine shall be made entirely from 3D-printed components.
For this I've redesigned and printed the Feedback Loop over the past few weeks.
It's not quite finished yet, but I couldn't resist doing a few test runs.
The entire engine is finally sufficiently airtight, even though some connections are still provisional.
The first test with the smallest inertance was disappointing; probably the flow resistance is much too high.
The next one, with a larger diameter, performed much better, which gives reason to hope for more.
I immediately drew in FreeCAD and printed fittings for an even larger diameter.
A quick test run revealed a significant leak; I will need to seal the fairly thin-walled PETG parts first.
However, it produced the most powerful acoustic wave I've ever heard, which I recorded with the microphone.
The frequency analysis in Audacity shows a strong peak at 350 hertz.
I don't know if this is the actual acoustic frequency in the engine and if my method is correct.
Maybe you are familiar with frequency analysis and can help?
Please write it in the comments!
The piston or diaphragm normally vibrates at a frequency of about 40 hertz.
I'm going now to test the sealed Inertance with the larger diameter and also experiment with much longer hoses.
This brings me a step closer to my goal of creating a simple, reliable, open-source acoustic Stirling engine that anyone can build and that can generate electricity from any heat source.
You can download all the instructions and 3D models for printing at ownenergy.org.
Any help is very welcome; it would be great if you could join the development of the thermoacoustic engine.
As always, I'm really looking forward to your feedback, suggestions, and opinions in the comments, on Discord, or at ownenergy.org.
Your help is incredibly important for the further development of the engine!
If you'd like to support the project even more, becoming a member on Patreon or YouTube would be a big help.
Every cent from this will be invested in the development of the open-source thermoacoustic Stirling engine.
Thank you very much for your interest!
Thanks for the background music:
Song: Jim Yosef - Eclipse [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: http://ncs.io/eclispe
Watch: • Jim Yosef - Eclipse | House | NCS
If you want to support me you get access to exclusive content: https://www.patreon.com/c/Stirlingengines https://www.youtube.com/channel/UCie-_1q_BTL_cpPN_6f0gHw/join
For regular updates and a discussion forum visit: https://ownenergy.org/
Thanks to Baptiste (alias Olympio) we now have a Discord server: https://discord.com/invite/TDABS5z2mT
It would be very nice if we could discuss there everything about Stirling engines, 3D printing and more, thank you very much Baptiste.
The thermoacoustic Stirling engine shall be made entirely from 3D-printed components.
For this I've redesigned and printed the Feedback Loop over the past few weeks.
It's not quite finished yet, but I couldn't resist doing a few test runs.
The entire engine is finally sufficiently airtight, even though some connections are still provisional.
The first test with the smallest inertance was disappointing; probably the flow resistance is much too high.
The next one, with a larger diameter, performed much better, which gives reason to hope for more.
I immediately drew in FreeCAD and printed fittings for an even larger diameter.
A quick test run revealed a significant leak; I will need to seal the fairly thin-walled PETG parts first.
However, it produced the most powerful acoustic wave I've ever heard, which I recorded with the microphone.
The frequency analysis in Audacity shows a strong peak at 350 hertz.
I don't know if this is the actual acoustic frequency in the engine and if my method is correct.
Maybe you are familiar with frequency analysis and can help?
Please write it in the comments!
The piston or diaphragm normally vibrates at a frequency of about 40 hertz.
I'm going now to test the sealed Inertance with the larger diameter and also experiment with much longer hoses.
This brings me a step closer to my goal of creating a simple, reliable, open-source acoustic Stirling engine that anyone can build and that can generate electricity from any heat source.
You can download all the instructions and 3D models for printing at ownenergy.org.
Any help is very welcome; it would be great if you could join the development of the thermoacoustic engine.
As always, I'm really looking forward to your feedback, suggestions, and opinions in the comments, on Discord, or at ownenergy.org.
Your help is incredibly important for the further development of the engine!
If you'd like to support the project even more, becoming a member on Patreon or YouTube would be a big help.
Every cent from this will be invested in the development of the open-source thermoacoustic Stirling engine.
Thank you very much for your interest!
Thanks for the background music:
Song: Jim Yosef - Eclipse [NCS Release]
Music provided by NoCopyrightSounds
Free Download/Stream: http://ncs.io/eclispe
Watch: • Jim Yosef - Eclipse | House | NCS
Category (YouTube): Science & Technology
Playback is via YouTube's official embedded player. Data from YouTube; Exumo is not affiliated with YouTube.