Hi,

I'm working on designing efficient heat engines which can operate off
the daily temperature fluctuation. My latest design uses a trompe
connected to a bubble pump with the water in a closed cycle. It
captures atmospheric pressure air and compresses it to a pressure
depending on the height of the water columns. Heat and "cold" is
stored in the water and the amount of heat and cold stored depends on
the size of the water reservoirs.

You can read more at my blog and make comments,

http://archimerged.wordpress.com/

or actively work on the design at

http://renewableenergy.wikia.com/

I welcome readers and comments. I hope to find experimenters,
although after I have a design I may do some experiments myself.

-- Archimerged