3 replies to this topic

[Mehdi534]

Hi 

I'm checking Aspen EDR results with simple hand calcualtions, when I calcualtes velocity in  tubes in a shell and tube HX design I can't get the same Aspen value,. anybody knows why?

Regards, Mehdi 

[latexman]

I'm checking Aspen EDR results with simple hand calcualtions, when I calcualtes velocity in tubes in a shell and tube HX design I can't get the same Aspen value,. anybody knows why?

No idea. Maybe, if you attached the Aspen EDR info and your hand calculations, we might be able to help you.

[breizh]

Hi,

Latexman is right, share with us your work, comparison between Aspen and Hand calculations.

Breizh 

[Nikolay_]

There should be no problem with tubes. Check if your shell cross area calculation is wrong. For shell velocity calculations, use the free area between the baffles.