> Taht's all bullshit... NO heat - force coupling engine can reach more
efficiency than 30%... May be they meant 90% of this maximum 30%
>

Can too ! :-)
But it takes major engineering effort.
And, so far, stirling longevity at high specufic outputs is too low for
economic commercial use in all but niche applications.

> At last, no fuel burning engine can be the energy generator of the future!

Once / If they get Stirling sorted it will be the great hope of energy
production.
Could be a while though :-)
Philips, who spent 100's of millions on them, estimated a payback for all
development of well under a year once anyone got it right, and a development
cost in the billions of dollars.

The problems to be solved are simply put: maintain cost effective sealing
and longevity with operating temperatures of 1000 C plus, working pressures
of 3000 psi / 20 MPa plus and Hydrogen (ideally) or Helium as the working
gas.
So far the simple statements are not matched by simple solutions.


        RM

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