A fan filled with only a discharge duct delivers 40 m^3/sec of standard air (P = 101 KPa ; t = 21 C) against a total pre

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A fan filled with only a discharge duct delivers 40 m^3/sec of
standard air (P = 101 KPa ; t = 21 C) against a total pressure of
10.8 cm of WG when the static pressure is 10.2 cm WG. The
temperature of the gage fluid is 40 C (d = 992.26 kg/m^3). The fan
receives a 60 KW input. Find the fan efficiency.
a.) Determine the velocity pressure in meters of air
b.) Determine the cross sectional area of the discharge duct in
m^2
c.) Determine the static power in kw
d.) Determine the fan efficiency in %
e.) Determine the static efficiency in %