Fluid Mechanics (2nd Edition)
2nd Edition
ISBN: 9780134649290
Author: Russell C. Hibbeler
Publisher: PEARSON
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Chapter 6, Problem 49P
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A distillation column with a total condenser and a partial reboiler is separating ethanol andwater at 1.0 atm. Feed is 0.32 mol fraction ethanol and it enters as a saturated liquid at 100mol/s on the optimum plate. The distillate product is a saturated liquid with 80 mol% ethanol.The condenser removes 5615 kW. The bottoms product is 0.05 mol fraction ethanol. AssumeCMO is valid.(a) Find the number of equilibrium stages for this separation. [6 + PR](b) Find how much larger the actual reflux ratio, R, used is than Rmin, i.e. R/Rmin. [3]Note: the heats of vaporization of ethanol and water are λe = 38.58 and λw = 40.645
We have a feed that is a binary mixture of methanol and water (60.0 mol% methanol) that issent to a system of two flash drums hooked together. The vapor from the first drum is cooled,which partially condenses the vapor, and then is fed to the second flash drum. Both drumsoperate at 1.0 atm and are adiabatic. The feed to the first drum is 1000 kmol/hr. We desire aliquid product from the first drum that is 35.0 mol% methanol. The second drum operates at afraction vaporized of (V/F)2 = 0.25.(a) Find the liquid flow rate leaving the first flash drum, L1 (kmol/hr). [286 kmol/hr](b) Find the vapor composition leaving the second flash drum, y2. [0.85]
=
The steel curved bar shown has rectangular cross-section with a radial height h = 6 mm and thickness b = 4mm. The
radius of the centroidal axis is R = 80 mm. A force P = 10 N is applied as shown. Assume the steel modulus of
207,000 MPa and G = 79.3(103) MPa, repectively.
elasticity and shear modulus E =
Find the vertical deflection at point B. Use Castigliano's method for a curved flexural member and since R/h > 10,
neglect the effect of shear and axial load, thereby assuming that deflection is due to merely the bending moment.
Note the inner and outer radii of the curves bar are:
r = 80 + ½ (6) = 83 mm, r₁ = 80 − ½ (6) = 77 mm
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Chapter 6 Solutions
Fluid Mechanics (2nd Edition)
Ch. 6 - Prob. 1FPCh. 6 - The shield of negligible weight is held at an...Ch. 6 - Prob. 3FPCh. 6 - Crude oil flows into the open air at the same rate...Ch. 6 - The table fan develops a slipstream that has a...Ch. 6 - Prob. 6FPCh. 6 - Determine the linear momentum of a mass of fluid...Ch. 6 - Prob. 2PCh. 6 - A volumetric discharge of 1.25 m3/s passes out the...Ch. 6 - Water flows with a velocity of 6 m/s through the...
Ch. 6 - Water is ejected from the hose at A with a...Ch. 6 - Water flows out of the reducing elbow at 0.6...Ch. 6 - Oil flows through the 100-mm-diameter pipe with a...Ch. 6 - Prob. 8PCh. 6 - Prob. 9PCh. 6 - Water flows through the elbow with a velocity of...Ch. 6 - Prob. 11PCh. 6 - The water jet is ejected from the 4-in.-diameter...Ch. 6 - The water jet is ejected from the 4-in.-diameter...Ch. 6 - Water flows through the elbow at 8 ft/s. Assuming...Ch. 6 - The steady jet of water flows from the...Ch. 6 - The steady jet of water flows from the...Ch. 6 - Crude oil flows through the horizontal tapered 45°...Ch. 6 - A speedboat is powered by the jet drive shown....Ch. 6 - The 160-lb man stands on the scale. If the bucket...Ch. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Water flows out of the reducing elbow at 0.4...Ch. 6 - Water flows through the 2-in.-diameter pipe...Ch. 6 - The pipe AB has a diameter of 40 mm. If water...Ch. 6 - Prob. 25PCh. 6 - Prob. 26PCh. 6 - Pipe AB has a diameter of 40 mm. If water flows...Ch. 6 - Pipe AB has a diameter of 40 mm. If the tensile...Ch. 6 - The disk valve is used to control the flow of...Ch. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Water flows through the pipe C at 4 m/s. Determine...Ch. 6 - Prob. 34PCh. 6 - The 1-in.-diameter pipe ejects water towards the...Ch. 6 - Prob. 36PCh. 6 - Water flows through the hose with a velocity of 3...Ch. 6 - Water flows through the hose with a velocity of 3...Ch. 6 - A 20-mm-diameter stream flows at 8 m/s against the...Ch. 6 - Determine the power required to keep the vane...Ch. 6 - Prob. 41PCh. 6 - The boat is powered by the fan, which develops a...Ch. 6 - The vane is moving at 80 ft/s when a jet of water...Ch. 6 - The car is used to scoop up water that is in a...Ch. 6 - The water stream strikes the inclined surface of...Ch. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - A 25-mm-diameter stream flows at 10 m/s against...Ch. 6 - Prob. 49PCh. 6 - Water flows into the bend fitting with a velocity...Ch. 6 - Prob. 51PCh. 6 - Water flows into the Tee fitting at 3.6 m/s. If a...Ch. 6 - Prob. 53PCh. 6 - Prob. 54PCh. 6 - If the velocity through the pipe is 4 m/s,...Ch. 6 - Water flows through the 200-mm-diameter pipe bend...Ch. 6 - Water flows through the pipe with a velocity of 5...Ch. 6 - The bend is connected to the pipe at flanges A and...Ch. 6 - The fan blows air at 6000 ft3/min. If the fan has...Ch. 6 - Prob. 60PCh. 6 - Prob. 61PCh. 6 - Prob. 62PCh. 6 - The lawn sprinkler consists of four arms that...Ch. 6 - Prob. 64PCh. 6 - Prob. 65PCh. 6 - Prob. 66PCh. 6 - Prob. 67PCh. 6 - Prob. 68PCh. 6 - The propeller of a boat discharges 67.5 ft3/s of...Ch. 6 - Determine the largest speed of the breeze that can...Ch. 6 - Prob. 71PCh. 6 - Prob. 72PCh. 6 - Prob. 73PCh. 6 - Prob. 74PCh. 6 - Prob. 75PCh. 6 - Prob. 76PCh. 6 - Prob. 77PCh. 6 - Prob. 78PCh. 6 - Prob. 79PCh. 6 - The jet is traveling at a velocity of 400 m/s in...Ch. 6 - Prob. 81PCh. 6 - Prob. 82PCh. 6 - Prob. 83PCh. 6 - The jet is traveling at 500 mi/h, 30° above the...Ch. 6 - Prob. 85PCh. 6 - Prob. 86PCh. 6 - The rocket is traveling upwards at 300 m/s and...Ch. 6 - The balloon has a mass of 20 g (empty) and it is...Ch. 6 - Prob. 89PCh. 6 - Prob. 90PCh. 6 - Prob. 91PCh. 6 - Prob. 92P
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