Air Δ P on a resistance

  • Thread starter Yuri B.
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  • #1
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Where in an air supply duct (after the fan) an air damper (or any other resistance to flow) will have less Δ P : closer to the fan, or closer to the outlet ?
 

Answers and Replies

  • #2
Q_Goest
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For any given flow rate and restriction in a flow stream, the irreversible drop in pressure across that restriction will be lowest where density is highest.
 
  • #3
137
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Thank you very much !
(all is clear now).
 
  • #4
137
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One little qwestion more please. For the known volume (for the known dP) to find the mass flow, what pressure (and RH) do we take : one of before the restriction, after, or a mean ?
 

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