Today I thought I'd spend a bit of time on the nozzles.
First I'd like to clarify wether we are indeed going to keep the dP during testing between 1.0 and 3.0 "wc, as per the fantester guidelines, or if we're doing something different.
I'm also thinking about nozzle selection; what's the word on using multiple one at the same time? Ok for 2? Ok for 3, 4? (I understand how it would work; this is an accuracy concern only).
Knowing that, I can figure out the minimum number of nozzles, their sizes, and the right combination to get to 250 cfm. Do we have a minimum cfm requirement?
I expect to be mobile again Wednesday; I'll start to scour the area for tube and egg crates.
Speaking of which...
Quote:
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Originally Posted by from fan tester
...The chamber has flow straightening screens installed upstream and downstream of the nozzle array. The screens break up turbulence in the airstream and provide a uniform flow approaching the nozzle array. Each set consists of three screens with open areas of 60%, 50% and 45%. ...
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Any thoughts if we're going to be ok with the egg crate, or if we're way off here?