Volumetric Flow Rate,
Q=25(m^(3))/(m)in
; Working Fluid: Water at STP Impeller #I:
\omega _(I)=3,000rpm;,
Impeller #II:
\omega _(II)=-3,000rpm
Degree of Reaction: Impeller # I -
R=0.50
; Impeller # II:
R=
unknown Blade Tip Radius:
95mm;
Blade Hub Radius:
37.5mm
Assume flow is axial at BOTH Section 1 and at Section 4. Assume blade angles equal corresponding flow angles. Perform your calculations at the mean radius as defined in Peng (Pg. 45). SECTION # 2 At Section #2, determine: Absolute Velocity,
V_(2)
, and Relative Velocity,
W_(2)
. Draw the Vector diagram of velocity vectors at Section #2, to scale. Determine the blade angle,
\beta _(b2)
on impeller #I. Determine the Power,
P_(s1)
, required for impeller #I. Determine the total Pressure rise from Sections 1 to 2. Sketch to scale (using drawing instruments) the blade on impeller # I.