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Unformatted text preview: m /hr • Find the power (in hp) required for a 55% efficient pump. 3. Air at 30 °C ( ρ = 1.18 kg/m 3 , μ = 1.85 × 10 – 5 kg/m ∙ s) flows through 250 m of 27 cm × 85 cm galvanized steel duct at a rate of 0.18 m 3 /sec. • Find the pressure drop. Roughness e = .046 mm 4. Nitrogen at 50 °C flows through a packed bed of particles at a rate of 200 kg/hr. The bed is 13 cm in diameter, 36 cm high and has porosity 0.48. The particles have specific surface 8.1 cm –1 . • Find the pressure drop 5. A pipeline 22 miles long delivers 5000 barrels of oil per day. The discharge pressure is p ATM and the pressure drop in the pipeline is 450 psi g . • Find the capacity of the pipeline if a parallel length of identical pipe is laid over the last 12 miles of the line . The pressure drop remains the same and the flow is laminar. • Find the pressure at the junction where the new pipe is added. Friction Factor Chart:...
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 Spring '10
 1`
 Fluid Dynamics, Surface tension, pressure drop, Drop

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