Finland has inaugurated an industrial-scale sand battery this week in the southern town of Pornainen, where it'll take over heating duties from an old woodchip power plant for the municipality. It's set to reduce carbon emissions from the local heating network by as much as 70%, and is the largest…
Steam, right? Describing steam as cooled water seems somewhat odd to me, but it is indeed still water its gaseous form. So, cooled steam of water?
Those are pressured systems, the water is kept in high pressure, which means it is liquid water. When it goes through turbine it it steam, usually superheated.
In industrial settings you can get water to 350°C in liquid form, it just about the pressure.
Even the city wide district heating networks water is kept at 3 bar, which can keep the water at liquid for 133°C in the winter time.
Oh, I didn’t think of that. Thanks for the explanation.