Determine the mass flow rate

Question # 00766669 Posted By: fucrank Updated on: 06/24/2020 07:03 AM Due on: 06/30/2020
Subject Engineering Topic General Mechanical Engineering Tutorials:
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1. Liquid water flows isothermally at 208C through a one- inlet, one-exit duct operating at steady state. The duct's inlet

 1 = 0.8 lb/s

mi = 3000 lb

 2 = 1.3 lb/s

 3 = 2.6 lb/s

and exit diameters are 0.02 m and 0.04 m, respectively. At  the inlet, the velocity is 40 m/s and pressure is 1 bar. At the exit, determine the mass flow rate, in kg/s, and velocity, in m/s.

2. Air enters a one-inlet, one-exit control volume at 6 bar, 500 K, and 30 m/s through a flow area of 28 cm2. At the exit, the pressure is 3 bar, the temperature is 456.5 K, and the velocity is 300 m/s. The air behaves as an ideal gas. For steady-state operation, determine

(a) the mass flow rate, in kg/s.

(b) the exit flow area, in cm2.

 

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