Gunner scribed in :
hmmmmm. not all that easy without basic machinery. what might be more useful is a lot of printed materials from the 1850's onwards which show the early ways of doing it (boring 24" cylinders etc). at least then you don't have to invent soemthing to do the job all over again.
solar powered flash boiler. how much pressure do you want? locos with flash boilers favoured around 1800 psi (-;
40 or 50 half-square-meter flat mirrors on 'tripods' (any stand suitable). aim them by hand at the boiler elements and re-aim every half hour or so. when you get tired of that, invent a mechanism to do it for you (small steam engine with governor driving a celestial telescope mechanism to keep all the mirrors 'pointing at the sun' will do)not much sun where you are? get more mirrors. it'll even work at the poles, same energy density per square meter afaik.
imagine the effect of putting such mirrors in every seat in a football stadium on the side facing the sun.... then reflecting the sun at the ref..... (-:
probably too much friction as the rings are very tight compared to a steam engine.
all really depends how much water you have. plenty water = flash boiler and turbine and just waste theexhaust to air (or heat the house). little water = some other boiler type and multi stage piston engine with condenser etc etc etc to conserve water.
of course, if you have plenty of flowing water why make steam? just use the water to turn whatever you want. if you generate electricity, don't use it to run the lathes etc, lay shaft for that works well, use electricity for the other things you can't live without, like internet access....
swarf, steam and wind
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