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how to scale a proyect

how to scale a proyect

how to scale a proyect

(OP)
Could you tell me please how to scale a proyect

I have this values

flow 1100 m3/h [5000 gal/min]
leaving from a 430 mm wide 380 heigth [ 17" 15" ] open

Guess I want to have the open to be  scale by 5 or 0.20 factor  so the open will be 86 mm W 76 H
Shall I have the flow also by this factor 1000 x 0.20 = 220 m3/h


RE: how to scale a proyect

(OP)
auto response
Or it shall be scale to 1/25  or the square of the reduction ?

RE: how to scale a proyect

First, proYect is in Hebrew. It is proJect in English.

As in electricity if you use 0.2 scale for electrical wire diameter you do not have 0.2 of the current (or 5 time resistance) but 0.2^2=0.04 of the current (or 25 times more resistance) the same is with flow.

RE: how to scale a proyect

(OP)
Hi,  as spanish is my tounge , proyecto is project.
Thanks for the tip
Another question .

I did the calc and for such scaled flow-section , I got the same  speed , but why I got differents pressures drop for the same kind of pipe surface?


 

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