How to get internal volume of an centrifugal Fan Model .

How can I get the internal volume ( ie the space which remains vacant inside the assembly) for a Radial Fan ? Can any one please upload or mail me the internal volume for the models Centrifugal (radial) fan
available at kamal.tewari@iitgn.ac.in

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internal volume of the 'scroll' housing = 201.21cc

Volume was obtained by lofting the profile of the bottom surface of the scroll to the top surface of the scroll and cutting away the little bit that the inlet orifice protrudes inward, and querying the mass properties of the 'air' body.

A quick and dirty way to calculate it would be to simply measure the surface area of one side of the scroll and multiply by the height, which works out to 201.7 cc.

 
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