preaton wrote:The difficulty occurs in the steam space. Although by definition ,saturated steam at 200psi will be about 200 deg C. In some boiler designs there is the potential to superheat the steam. Once the steam is dry the temperature of the steam is related to how much heat is applied and independent of the pressure. This is where copper becomes a problem. Most boiler designs that use copper tubes get around this problem by making sure that the tubes are "drowned" ie below the water level of the boiler. Then the above situation cannot arise.
Yes this is correct, and my tubes are "drown". This does work
Maltec's comments are relavent also.
Wearyman, I would recommend you get a good boiler design, preferably from the SBA. They can supply you a design for little money that you won't have to engineer and should be safe. If your new to engineering and the physics, and I mean this in a kind and honest tone, I would stay away from designing a boiler. Steam is a wonderous, hideous beast...and not to be triffled with. That's a good way to end up a statistic.
And old saying comes to mind....if you want to design some machine, first run one, then fix one, and then design one.
With that in mind.....
Get some miles behind you running a boiler that is a known entity, and get some training in it's safe operation. There are many groups around that can help, and some on line sources, Check Google books for boiler operation. "Maxims and Instructions for the Boiler Room" by Hawkins comes to mind but in perusing my copy, I find it a bit old. But I am sure there is others and google is your friend here.
I believe the SBA has some classes also.
Feel free to ask more questions, but do go slow, and make the investment in learning.....knowledge more than anything else is what will keep you safe...believe it.
Warm Regards, and best of luck in you learning.
Dave
....we can get into it.
