Hi All
I need to determine the thickeness of a tube in a heat exchanger. I am not sure where I can find a suitable equation that helps to calculate the critical thickeness of the tubes. I know both the intenal and external pressures of the fluids and I am trying to come out with a tube configuration for my heat exchanger but I would like to check that my selection of tube thickness will stand the shell pressure which is relatively high (64 bara).
Thank you in advanse for any help or suggestions.
Tube
Fluid: Gas
Pressure: 2.06 bara
Tempereture: 1250C
Shell
Fluid: Water
Pressure: 64.2 bara
Temperature: 280C
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Tube Thickness
Started by heisenberg, Jun 14 2008 12:25 AM
4 replies to this topic
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#1
Posted 14 June 2008 - 12:25 AM
#2
Posted 14 June 2008 - 01:45 AM
Hi,
Refer Heat Transfer book by D.Q.Kern
Refer Heat Transfer book by D.Q.Kern
#3
Posted 14 June 2008 - 07:50 AM
I do not believe that any reference or method of calculating the minimum tube wall thickness necessary to withstand a partial vacuum is to be found in Don Q. Kern's famous book, "Process Heat Transfer". At least, I've never found it there.
I believe you will find the methodology and calculation method detailed in ASME 31.3 - "Process Piping". I know I have the information specifically referring to condenser tubes, but I am unable to find it at this moment.
I believe you will find the methodology and calculation method detailed in ASME 31.3 - "Process Piping". I know I have the information specifically referring to condenser tubes, but I am unable to find it at this moment.
#4
Posted 15 June 2008 - 12:18 AM
I believe you will find the methodology and calculation method detailed in ASME 31.3 - "Process Piping". I know I have the information specifically referring to condenser tubes, but I am unable to find it at this moment.[/size][/font]
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Hi
Thank you very much for the information. I have a silly question: How can I get hold of the ASME 31.3. Will I be able to find such document in my University library?
Thanks
[/quote]
Hi
Thank you very much for the information. I have a silly question: How can I get hold of the ASME 31.3. Will I be able to find such document in my University library?
Thanks
#5
Posted 15 June 2008 - 08:55 AM
Heisenberg:
Yes, if you are referring to a University's Technical Engineering Library - then they certainly should have a copy of the complete ASME Code -- including B31.3.
You can also find the hoop stress design formula in engineering text books; but I specifically refer you to B31.3 because it is THE reference and the code by which piping is designed - at least in the Western Hemisphere. If you are going to be a professional engineer it is appropriate and smart to get involved with B31.3 now and learn to live by the ASME code - or its local equivalent if you reside outside the western hemisphere.
Yes, if you are referring to a University's Technical Engineering Library - then they certainly should have a copy of the complete ASME Code -- including B31.3.
You can also find the hoop stress design formula in engineering text books; but I specifically refer you to B31.3 because it is THE reference and the code by which piping is designed - at least in the Western Hemisphere. If you are going to be a professional engineer it is appropriate and smart to get involved with B31.3 now and learn to live by the ASME code - or its local equivalent if you reside outside the western hemisphere.
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