Copper does not like too much temperature and monotube boilers sometimes run dry toward the outlet allowing high temperatures that would destroy copper tube very quickly. Insurance companies take a very dim view of copper for the job.
Correct me if I am wrong but copper has a heat conductivity second only to gold and perhaps aluminium if my memory serves me well and copper tube can be hand bent around a tube - so why are you using stainless steel? Please let me know there must be a good reason.
There are various grades of stainless, and your are correct in that most of them are not allowed for boiler making. However, one grade, known to us as 316 can be used in tube form as shown. I'm sure that if someone sat down and had a long talk to the insurance companies they would find out what grade is used for the pressure vessels in the chemical plants that you see from time to time.
I've read that stainless is illegal to use in boiler making, so am guessing that this part is for a different type of boiler. "Stainless steel is virtually prohibited (by the ASME Boiler Code) for use in wetted parts of modern boilers, but is used often in superheater sections that will not be exposed to liquid boiler water." (Wikipedia) So, is this for a superheater? I'd love to learn more about boiler making that stays away from all the heavy math, any books I could read? Thanks
The boiler is not ready to run yet as the casing is not ready. The ends of the tubes at the bottom are bent up the sides and joined to the next coil at the top of the nest of tubes, away from most of the heat, by compression joints. These are protected from too much heat by lagging.
Very nice sir.
elwood173 4 months ago
Copper does not like too much temperature and monotube boilers sometimes run dry toward the outlet allowing high temperatures that would destroy copper tube very quickly. Insurance companies take a very dim view of copper for the job.
Uniflow 4 months ago
Correct me if I am wrong but copper has a heat conductivity second only to gold and perhaps aluminium if my memory serves me well and copper tube can be hand bent around a tube - so why are you using stainless steel? Please let me know there must be a good reason.
EVZebra 4 months ago
There are various grades of stainless, and your are correct in that most of them are not allowed for boiler making. However, one grade, known to us as 316 can be used in tube form as shown. I'm sure that if someone sat down and had a long talk to the insurance companies they would find out what grade is used for the pressure vessels in the chemical plants that you see from time to time.
Uniflow 7 months ago
I've read that stainless is illegal to use in boiler making, so am guessing that this part is for a different type of boiler. "Stainless steel is virtually prohibited (by the ASME Boiler Code) for use in wetted parts of modern boilers, but is used often in superheater sections that will not be exposed to liquid boiler water." (Wikipedia) So, is this for a superheater? I'd love to learn more about boiler making that stays away from all the heavy math, any books I could read? Thanks
partsproduction 7 months ago
The boiler is not ready to run yet as the casing is not ready. The ends of the tubes at the bottom are bent up the sides and joined to the next coil at the top of the nest of tubes, away from most of the heat, by compression joints. These are protected from too much heat by lagging.
Uniflow 9 months ago
have you finished the boiler? would very much like to see how it is when completed, can’t quite figure out how you connected the tubes at the end
Amphidory 9 months ago
That's quite a process. It's great that you have the knoledge of how to match the sizes of coils and boilers to the demands of the engine etc.
rayunseitig 1 year ago
Great to see this process! Very well done.
OlympicClassDandy 1 year ago