On 23/04/17 09:49, Nightjar wrote:
Steam is viable, even if that does not sit well with your world view.
Technically perhaps ...but economically?

IC engines are good because you don't have to lug the fuel oxidant or
the working fluid around. Its in huge supply as atmospheric oxygen and
gases respectively.

Once you are building a static installation though, steam predominates
and is more efficient, because you can run huge condensers on the back end.

And you have a variety of thermal sources that you can hook up - coal,
oil gas, nuclear.


--
The New Left are the people they warned you about.