Air enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 90 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

1 Answers

Step: 1

Given data

The density at the inlet of the nozzle

The velocity at the inlet is

The inlet area

The density at the outlet of the nozzle

The velocity at the outlet is

Step: 2

(a)

The mass flow rate

Step: 3

(b) The exit area of the nozzle

Since the process is steady mass flow rate remains constant in the nozzle, the exit area can be determined as

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