A large tank contains air at 2.84 bar gauge pressure and 24°C temperature. The air flows from the tank to the atmosphere through an orifice. If the diameter at the orifice is 2 cm, find the maximum flow rate of air, in kg/sec. Take R = 287 J/kg·K, k = 1.4, and ambient pressure = 1 bar.

17.Find the heat flow during 5.0 h through a glass window of thickness 0.20 in. with an area of 40 ft² if the average outer surface temperature is 22°F and the average inner glass surface is 60°F. Show working equation with answer. Answer must be in BTU units.

Show and expalin all steps in solution.Iso-butane at initial temperature of 10C is flowing with the entry velocity of 5 ft/s inside the pipe of 2 inch diameter. At the exit the diameter of the pipe is enlarged to 5 inches. The height change from the initial to final stage is 2 ft. Local gravity is 32.0 ft/s2. The initial pressure is 1.5 bar.  Make a Temperature-Volume  plot showing all pressures, temperatures and stages. What is mass flow rate in lbm/s? Use NIST to find the density at the inlet. What is the exit velocity of the stream in ft/s if the temperature of the iso-butane is the same, but pressure drops to 1.45 bar?  What is internal energy change?  Was heat added or removed from the pipe?

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