Hello... I'd like to know where I can find proof of this answer as well please. My own searching didn't come up with anything concrete.I'd like to know how much the ambient temperature inside of a hollow steel tube would rise by if the outside of that tube was exposed to an 1100 degree flame for a period of 3 seconds.If specifics help, they are something along the lines of 3.125 O.D. tube, 0.35 wall thickness. High grade steel, can't be more specific than that sorry.Thanks for any answers!
I can asnswer this from practical experience. If the tube is sealed, temperature would rise approx. 25 deg F. If the tube were open the temperature would be less that a 10 deg F rise. The exact answer can be found in any book on thermodynamics.
I cant see how you could solve that when you don’t know the type of steel ( specifically). There are many in the range you have stated. Also volume, respecting the length of the tube and coverage of the exterior heat. Logic tells us however 3 seconds is not very long so next you would need to know are the post factor. if the flame was from say a cutting torch and the tube was 20' in length in an ambient exterior temp of 32deg. We could us known a test and determine the rate at which the heat was spread out through the steel. You can also measure pressure in the tube You can find easily resource material on the amount of energy it takes to raise temp by a factor of one. By testing the pressure of a sealed tube of a given length you can apply the solution in scale to your problem. You can also try sticking your finger in it.
yes it is very possible. as what our teacher in physics said that steel is a good conductor of heat..
