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It is proposed to pump 10,000 kg/h of toluene at 114°C and 1.1 atm abs pressure from the reboiler of a distillation tower to a second distillation unit without cooling the toluene before it enters the pump.
If the friction loss in the line between the reboiler and pump is 7 kN/m2 and the density of toluene is 866 kg/m3, how far above the pump must the liquid level in the reboiler be maintained to give a net positive suction head of 2.5 m?
Calculate the power required to drive the pump if the pump is to elevate the toluene 10 m, the pressure in the second unit is atmospheric, and the friction loss in the discharge line is 35 kN/m2. The velocity in the pump discharge line is 2 m/s. suggest a suitable pump and justify.
a body with the shape of a rectangular parallelepiped moves without slipping on two cylindrical rollers. the mass os
Determine the compressive force C and the shear force S supported by this disk in terms of the body weight W. The weight Wu of the upper torso (above the disk in question) is 68% of the total body weight W and acts at G1.
r-134a vapor enters an adiabatic turbine at 250 psia and 175 f. the temperature at the outlet is 20 f. determine the
airflow through a long 0.2 m2 air conditioning duct maintains the outer duct surface temperature at 10 c. if the
a late-model hummer has a frontal profile area of 3.1 m2 and a cd of 0.47. it is moving at a steady speed of 75 mph. a
Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727°C (1341°F). (a) What is the proeutectoid phase? (b) How many kilograms each of total ferrite and cementite form?
the ultimate analysis of a no.4 fuel oil is 86.47 wt carbons. 11.65 hydrogen 1.35 sulfur and the balance noncombustible
Determine the maximum angle () for which the wheelbarrow will not slip. (b) Repeat if the wheelbarrow faces uphill. Neglect all friction associated with the front wheel B.
a closed system consists of an ideal gas with constant specific heats that remain constant. the gas undergoes a proces
Air is contained in a piston-cylinder assembly, initially at 40 lbf/in2 and 600 ?R. The air expands in a poly tropic process with n = k = 1.4 until the volume is doubled. Modeling the air as an ideal gas with constant specific heats,
Given the planar velocity field vr = -A sin(?t) sin θ r 2 vθ = A sin(?t) cos θ r 2 , where A and ? are known constants, 1. Determine the vorticity.
A brittle cast iron (E = 15 Msi, ? = 0.2, Sut = 30 ksi, Suc = 100 ksi) hub is shrink-fit onto a solid carbon steel shaft. The hub has initial inner and outer diameters of 3.000 and 6.000 inches respectively. What is the largest diameter the steel sha..
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