Design of fixed-tube-sheet heat exchangers
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When designing fixed-tube-sheet heat exchangers using SW6, the thickness of the tube sheet needs to be specified as an input value (if this value is not entered or is set to 0, the program will issue an error alert during calculation). Since it’s not possible to know in advance exactly how thick the tube sheet should be, entering a random value results in failure to pass the verification, and the program does not provide any suggested thickness for reference. As a result, multiple attempts at entering different values are required to find the appropriate thickness. I would like to know how others handle the determination of the tube sheet thickness when designing fixed-tube-sheet heat exchangers; please share your insights
I don’t think there’s such a situation as what the original poster mentioned; if the tube sheet thickness isn’t entered, the program seems to provide a thickness value automatically. I’ll take another look tomorrow
I took a look; if you don’t enter the thickness, the program will prompt you for the design thickness of the tube sheet. What version are you using? It’s already V6.0 now
There’s no need to enter the thickness; it will calculate one for you
If you don’t enter the thickness, the calculation will still provide you with a reference thickness
Is the original poster’s version too old?
The poster needs to check whether there are any values available for the elastic modulus of the pipe box flange at the design temperature; if not, the thickness of the pipe sheet cannot be determined on its own. Click on the tube box flange material again, and the elastic modulus value will be displayed
I find it strange too. I remember that in the past, the program would calculate the thickness of the tube sheet automatically. Nowadays, my company uses PV quite often and SW6 much less. Currently, to design a heat exchanger for hydrogen processing, we need to use SW6; it’s a fixed-tube-sheet type, with the tube sheet connected to the tube box and shell through welding (type B). But when I don’t enter the tube sheet thickness, the program gives an error, which is really frustrating. It’s the latest version
With SW6, it’s not necessary to enter the thickness; the software calculates an appropriate thickness for you. When you do enter a thickness, the system compares that value with the thickness it has calculated itself
;P not losing thickness is calculation, while entering thickness is for verification.
It doesn’t lose in thickness; the reference thickness can be obtained from it.