Print the Open Source thermoacoustic Stirling engine !

I show the development of the thermoacoustic Stirling engine into an open-source, DIY combined heat and power generator made from 3D-printed parts, which anyone can easily build themselves to generate their own cheap electricity.
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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 development of the thermoacoustic Stirling engine has made great progress recently.
It is now planned to produce all components using a 3D printer.
The upcoming pressure charging will enable much higher performance levels to be achieved.
The aim is to enable everyone to build their own open-source electricity generator.
In my last videos, I showed the conversion of the power extraction unit to use a membrane instead of a piston.
This can be produced entirely using a standard 3D printer and allows the resonance frequency to be adjusted by varying the tension of the membrane.
The test runs were very successful and, surprisingly, the engine is now able to start on its own as soon as the acoustic wave inside is strong enough.
This greatly simplifies the power-boosting pressure charging process, as no additional starting mechanism is required.
To simplify the construction of the engine and eliminate leaks, I redesigned all parts and optimized them for 3D printing.
Only the high-temperature components are still made from conventionally manufactured metal parts.
However, this one is also going to be redesigned soon and printed relatively cheaply by a 3D printing service using metal or ceramic.
Trials are also underway using homemade heaters made from 3D-printed ceramic or cast concrete.
The individual components are now connected using clamping flanges.
These are completely tight, quick to assemble and well suited for 3D printing.
Thanks to Rob from Discord for his suggestion!
A quick pressure test showed that the compliance provided a good tightness even without sealing.
The T-junction splits the acoustic wave into the feedback loop and the power extraction unit, where the energy is converted.
There are also connections here for pressurization and pressure measurement.
All components have now been sealed with Dichtol, and once they are completely dry, the first test runs will be carried out on a hopefully completely leak-proof engine.
In the meantime, I will design and 3D print an adjustable membrane holder with a generator mount and a cover.
We'll then see whether the charge pressure delivers the expected performance boost.
The development of the engine is currently at a very exciting stage, which is sure to bring with it a few surprises and challenges.
As always, I’d like to hear your feedback, suggestions and thoughts in the comments, on Discord or at ownenergy.org.
Your help is absolutely important for further development work!
If you'd like to support the project further, becoming a member on Patreon or YouTube would be a great 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!


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Free Download/Stream: http://ncs.io/eclispe
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