Idea for Turbine "almost Stirling" Heat engine.Pls comment.
Posted: Sat Mar 08, 2008 8:21 am
A newbie so pls bear with me.Idea: Cylinder of non-conductive material
(eg-plastic)with heat exchanger elements CLOSELY FITTED at both ends
and turbine (eg-fan) fitted into middle of cylinder . Hot Exchanger
draws air through small gap around it, heats it and expands it toward
fan; cold exchanger simultaneously draws the air from fan and expels
it through small gap around it.
In short a convective current is created which spins the centrally
located fan which produces electricity.
The gap size is crucial; must be small enough to allow pressure
gradient to build inside tube but large enough to allow flow-through.
It should be fairly easy to build feedback circuit to adjust gaps as
temperatures of exchangers change.I personally like geo-thermal for
delta h. Comments? Thanks, Stuart
(eg-plastic)with heat exchanger elements CLOSELY FITTED at both ends
and turbine (eg-fan) fitted into middle of cylinder . Hot Exchanger
draws air through small gap around it, heats it and expands it toward
fan; cold exchanger simultaneously draws the air from fan and expels
it through small gap around it.
In short a convective current is created which spins the centrally
located fan which produces electricity.
The gap size is crucial; must be small enough to allow pressure
gradient to build inside tube but large enough to allow flow-through.
It should be fairly easy to build feedback circuit to adjust gaps as
temperatures of exchangers change.I personally like geo-thermal for
delta h. Comments? Thanks, Stuart