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Oil is ?owing at a discharge of 0.50 m3=s in a 4-km, 50-mm-diameter steel pipe. The elastic modulus of the pipe is 200 · 106 kPa and its thickness is 5 mm. The oil has a speci?c gravity of 0.86 and a bulk modulus of 1.50 · 106 kPa. A valve at the end of the pipe is partially closed in a rapid fashion so that water hammer occurs anda pressure wave propagates upstream in the pipe.
The magnitude of the pressure wave is not to be greater than 600 kPa. Determine the percent decrease of ?ow rate tolerable during the valve closure and the period of the water hammer oscillation.
A power plant produces 1000 MW of electricity and uses residential oil as the fuel. The oil has a heating value, the maximum energy liberated in combustion, of 43 000 kJ/kg. The overall efficiency of the power plant is 52%.
Consider a cylindrical titanium wire 3.0 mm in diameter and 2.5 x 104 mm long. Calculate its elongation when a load of 500N is applied, assuming that the deformation is totally elastic.
a mixture of methanol and water is to be separated in a flash drum operating at a pressure of 1atm. the feed rate is 25
an industrial machine of mass 453.4kg is supported on springs with a static deflection of 0.508cm. if the machine has a
Water in a vertical piston cylinder is heated at constant pressure of 10 bar. It is initially at 179.9 0C and has a specific volume of 0.1 m3/kg and is heated to a final specific volume of 0.248 m3/kg. Changes in kinetic and potential energies are ze..
a contractor is required to prepare a soil surface so that its planar and the normal direction to the surface is within
Air expands through a turbine operating at steady state on a test stand. At the inlet, p=50 psia, T=1500 degrees R, and at the exit , p=14.5 psi. The volume flow rate of air entering the turbine is 2000 ft^3/min, and the power developed is measured a..
heat is transferred to a cylinder having a fixed volume of 6 m3 containing 0.1 m3 of saturated liquid water and 5.9 m3
an airplane weighing 5000 lb is flying at standard sea level with a velocity of 200 mph. at this velocity the ld ratio
The thermal protection system for NASA's Space Shuttle Orbiter was effective due to its exceptional thermal-insulation properties. Calculate the heat flow (per square meter) across a 50-mm-thick ceramic tile with an outer surface temperature of 1200 ..
a steel bearing is known to have a true diameter of 0.4982 in. in the laboratory you use a micrometer that is supposed
The outer surfaces are exposed to ambient air, with T8,2 = 25°C and h z = 4 W/m2 · K. while hot oil flowing through the hole is characterized by Tx.1 = 300°C and h1 = 50 W/m2 · K. Determine the corresponding heat rate and surface temperatures.
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