dedeleco wrote:chatelot16 writes:
there is really too much error in it for me to believe
Since these are fairly general principles, it would be good to clarify the list of errors, to be informative and to improve.
Likewise do the list of errors with Atmos, which uses the same principle.
back to the site cited in the first message: at the beginning I didn't understand anything ... and I was content to see little errors ...
else there we saw thermo acoustic ....
it's much simpler: there is an exchanger in the cylinder head which is alternately supplied with hot and cold air
we heat the exchanger it expands and it pushes the piston, we cool the exchanger and the piston returns
it is impractical: it will be even slower than normal stirling: each change of temperature of this unique exchanger will require a quantity of heat considerably greater than the heat actually used by this engine
all the trick of true stirling is to leave the hot part always hot, and the cold part always cold: the displacer moves the biggest part of the volume towards the hot or cold side, but does not ask to change the surface temperatures
asking the gas contained in the stirling to take the temperature of the surfaces already makes it quite slow, but making an engine whose exchanger must change temperature completely with each cycle will make it lamentably slow: in the kind of pendulum which work with the difference temperature between day and night
for a heat exchanger to be able to change temperature once per cycle, the wall would have to be very thin: therefore it would not bear any pressure and would not generate power
to make an interesting power with a stirling you need pressure, so thick walls, therefore constant temperatures, so do the real stirling that the great stirling invented, or make the real steam engine which has proven itself
