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How to determine duct sizes from calculated pressure drops?

How to determine duct sizes from calculated pressure drops?

How to determine duct sizes from calculated pressure drops?

(OP)
I'm trying to redesign a pneumatic transport system, so I know that the optimum velocity to move my product is 5000 fpm and i know our production rates, my question is how do i know if the current duct sizes are suitable for the new air volume that i assumed

RE: How to determine duct sizes from calculated pressure drops?

If you know the current duct size you can calculate the cross sectional area. Using that and your production rate you can calculate the velocity throught the duct.

RE: How to determine duct sizes from calculated pressure drops?

Have a look at Perry's handbook, fifth edition, on pages 7-21 and 7-22 you will find useful nomographs that answer your question.

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