[coryrc]

Except the ideal one doesn't exist and multistage stream turbines are more efficient in practice.

[hwillis]

Definitely not at that scale. Small turbines have low efficiency because tip speed increases quadratically as they get smaller.

[jacquesm]

And more reliable too. The Stirling does have one huge advantage which is that it is entirely self contained.

[Faaak]

But I suppose that having a multistage steam turbine in mars in not something will see at first