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VladimirAG [237]
3 years ago
12

Carbon dioxide enters an adiabatic nozzle steadily at 1 MPa, 518 oC, and mass flow rate of 5,322 kg/h and exits the system at 96

kPa and 421 m/s. Considering the nozzle having an inlet area of 37 cm2, calculate the inlet velocity in m/s
Physics
1 answer:
Orlov [11]3 years ago
3 0

Answer:

The velocity at the nozzle at inlet V_{1} = 3584 \frac{m}{sec}

Explanation:

Pressure at inlet P_{1} = 1 × 10^{6} Pa

Temperature at inlet T_{1} = 518 ° c = 791 K

Mass flow rate = \frac{5322}{60} \frac{kg}{sec} = 88.7

Gas constant for carbon die oxide is R = 189 \frac{J}{kg k}

Mass flow rate inside the nozzle is given by the formula = \frac{P_{1} }{R T_{1} } × A_{1} × V_{1}

⇒ P_{1} = = 1 × 10^{6} Pa

⇒ RT_{1} = 791 × 189 = 149499 \frac{J}{kg}

⇒ A_{1} = 0.0037 m^{2}

Put all the above values in above formula we get,

⇒ 88.7 = \frac{10^{6} }{149499} × 0.0037 × V_{1}

⇒ V_{1} = 3584 \frac{m}{sec}

This is the velocity at the nozzle at inlet.

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