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<t>Can you correct me on this Mr. Hornbaker?<br/> <br/> I believe that small steam engines have efficiencies much lower than could be expected from a ''reasonably well made'' Stirling. (I mean home-built with some careful design, trial and error) Am I overly optimistic?<br/> <br/> The problem being ...

<t>In my view, it depends on how much power you want to generate.<br/> <br/> I have been thinking of a similar project, involving a moderate-performance, home-built Stirling using common materials and relatively low temperature differentials.<br/> Firstly, use the fire to heat the Stirling's hot sid...

<t>Modern manufacturing techniques like CVD (chemical vapor-phase deposition) allow fabrication of many shapes from hard materials, that were impossible before. (Machining such parts just wouldn't be practical.)<br/> <br/> Tubes and plates of various sizes are now commercially available, being made ...

I'd rather see a woofer as a very cheap and efficient linear alternator for a free-piston Stirling.

The current website for MicroGen is microgen-engine.com

<t>Mrs. Chagnot, can you update us about the current state of ST5 production?<br/> <br/> Your last posts date back to nearly a year, and I'm already worried that this beautiful project has met with trouble.<br/> <br/> I've contacted Stirling Tech to suggest they add a ''News'' section to their websi...