2000 degrees, 5000 psi tubing
2000 degrees, 5000 psi tubing
(OP)
I have a need for 1" tubing (and connections) for an application seeing 2000 deg F and 5000 psi in a subsea environment. I'm having difficulty finding it. Any suggestions?
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2000 degrees, 5000 psi tubing
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RE: 2000 degrees, 5000 psi tubing
What is the minimum ID that you can accept?
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Plymouth Tube
RE: 2000 degrees, 5000 psi tubing
RE: 2000 degrees, 5000 psi tubing
Sorry but this smells like a fundamental heat transfer/fluid flow research problem. Once the design details are known, material selection should be to ASME B&PV Code, Section VIII because of the elevated pressure concerns.
RE: 2000 degrees, 5000 psi tubing
RE: 2000 degrees, 5000 psi tubing
Your mean metal temperature will be nowhere near 2000 F. You need to estimate that before you can begin this exercise.
RE: 2000 degrees, 5000 psi tubing
I'm left wondering why you want to light a fire on the bottom of the ocean...
RE: 2000 degrees, 5000 psi tubing
RE: 2000 degrees, 5000 psi tubing
How are you actually intending to operate the thing? A deep-ocean (and water bottom change significantly!) operation would mean the outside of the tube is exposed to different water back-pressures, water temps (shallow, near-coastal down to your expected 4 degree bottom-of-the-trench worst/best case scenario.
Thus the diff pressure across the thing may have zero dp at one end (where water outside < gas pressure inside at the exhaust because the gas is leaving the chamber (but temp's are high inside the wall, very low outside the wall)) out to the other fixed end of the rocket chamber (where pressure inside >> pressure outside, but temp's are nearly the same.)
You're conditions and stresses are going to change down the tube. But, iff it is a one-time use item (like a thermite tube to weld underneath) who cares? You pay extra for the conservative wall needed to make sure it doesn't burn out the thermite liner, but even NASA couldn't tel how much their space shuttle booster shell was overdesigned. Turns out even that wassn't a exact, completely known value either.
RE: 2000 degrees, 5000 psi tubing
RE: 2000 degrees, 5000 psi tubing
Same thing for the old Atlas rocket. One day something went wrong and it flew sideways w/o breaking up. USAF proceeded to make it lighter.
"You see, wire telegraph is like a very long cat. You pull his tail in New York and his head is meowing in Los Angeles. Do you understand this? Radio operates the same way: You send signals here, they receive them there. The only difference is there is no cat." A. Einstein