Table 2

Impeller B1 and B2–geometric parameters.

  Impeller B1 Impeller B2 Description
D1 [mm] 50 Inlet diameter
D2 [mm] 138 Outlet diameter
β2 [°] 8 20 Blade outlet angle
ϕ2 [°] 500 Wrap angle
Balanced No Dynamic balancing

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