20 Cent/Watt Solar Thermal

May 09, 2007 0 Replies

See the recent "Low Pressure Ratio Regenerated Stoddard" post in Yahoo Groups' Hot Air Engine Society.


33% efficiency from a low tech intermediate temperature closed cycle engine.


Bret Cahill



Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required