Isn't this the same as a stirling engine? -Martin --- steve spence <[EMAIL PROTECTED]> wrote: > what does the following have to do with biofuels? > well, neat application > that can use biofuels as the source of heat..... > > > http://www.animatedsoftware.com/pumpglos/ericsson.htm > > This pump was designed in the 1800's by John > Ericsson, designer of the Civil > War battleship Monitor. > The Ericsson Hot Air Pump had many advantages for > rural customers: It was > reliable, ran on virtually any fuel, had easily > replaced parts, and could > not explode. (No steam is used, only a few cubic > feet of hot air.) > > A fascinating series of linkages sequences all the > events. The pump works by > continuously heating and cooling the same air. The > heated air expands and > pushes up the TRANSFER PISTON (shaded gray here). > > The air is transferred around the edges of Transfer > Piston to the space > between the top of the transfer piston and the AIR > PISTON. Water circulating > around the cylinder cools the air, causing it to > contract. > > The water that cools the air was just brought up > from the well. It exits via > the outlet pipe (behind, not shown.) The Air Piston > pushes the cooled, > contracted air down past the Transfer Piston and the > cycle repeats. > > > > Steve Spence > Subscribe to the Renewable Energy Newsletter: > http://www.webconx.com/subscribe.htm > > Renewable Energy Pages - http://www.webconx.com > Palm Pilot Pages - http://www.webconx.com/palm > X10 Home Automation - http://www.webconx.com/x10 > [EMAIL PROTECTED] > (212) 894-3704 x3154 - voicemail/fax > We do not inherit the earth from our ancestors, > we borrow it from our children. > -- > > >
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