Reply by crank49

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Posted on One More Static Pressure Question

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4032 posts in 3821 days

#1 posted 11-01-2016 02:21 AM

Well, it can get even more complicated than that. It depends on whether the branch is open and flowing or shut off at a gate farther down the branch. In th latter case, the branch is shut off, if the straight thru flow has a change in diameters to keep it balanced when both lines are open, you actually have some static gain along with a reduction in velocity. Duct systems get pretty hairy to calculate when they have to accomodate multiple branches that can be either open or closed.

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