Pressure, boiler, heat.
What a job, to stoke a boiler like this. (Shovelling in coal). I asked my hubby to explain how it works and he tried, but all I got was ‘fire’, ‘water’ and ‘hot air’. I think a boiler full of water lies above the fire and a large tube of hot air sits in the water, somehow the hot air also circulates along the sides of the boiler and smoke goes up the chimney. The fire and hot air heat the water into steam, which then powers a piston, which has hot steam expanding, is pushed down, and is then cooled by water so the pressure releases. And that turns the wheel that turns the gears and belts….. This is a Cornish boiler that is old so it only runs at about 15 pounds per square inch…
So, I hope I got that right and I haven’t made any horrendous mistakes. But having a vague idea of how things work is important I think? Bored yet?
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