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We are separating ethanol and water. All percentages are mol%. Find the q values and plot the feed lines. a) Feed is 60% ethanol and flashes in the column with v/f=0.37 b)Feed is 40% ethanol and is a two-phase mixture with liquid and vapor in equilibrium at a temperature of 84.1 degrees celcius c)Feed is 40% ethanol and is a liquid at 20 degrees Celsius d)Feed is 40% ethanol and is a vapor at 120 degrees Celsius e)Feed is 50% ethanol and is a sub cooled liquid. One mole vapor must be condensed to heat 12 moles of feed to their boiling point f)Feed is 20% ethanol and 70% is vaporized in a flash distillation system. The products of the flash system are fed to distillation column. Calculate the two q values and plot the two feed lines.
an adiabatic throttle valve operates in a steady-state steady-flow condition with r-134a refrigerant at a flow rate of
the presence of raindrops in the air during a heavy rainstorm increases the average density of the air-water mixture.
air is compressed steadily by a reversible compressor from an inlet state of 100kpa and 300k to an exit pressure of 900
An open cylindrical tank that is 2 ft in diameter and 4 ft high is full of water. If the tank has a 2 in diameter hole in the bottom, how long will it take for half of the water to drain out, if friction is neglected?
the table below gives physical properties for three types of fibers used to reinforce polymer resins to make pmc
Why does a car engine stop when we turn the key even when the vehicle is running? The engine should run on alternator in case of a petrol engine and on it's own in case of a diesel engine. Then how does it stop exactly?
Ten cubic feet of air is cooled at a constant pressure of 80 psi. The initial temperature is 180 0F and the final temperature is 100 0F. Assume air is an ideal gas, Cp = 0.241 Btu/lb 0R and Cv = 0.173 Btu/lb 0R and R = 1545 lbf/lbmol 0R, M = 28.97 lb..
a steel plate is to be attached to a support with three bolts. the plate is 50 mm wide and 11.2 mm thick and the yield
A heat pump with a COP of 3.0 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power. If the temperature in the house is 5 degrees C when the heat pump is turned on, how long will it take for the heat pump to raise the..
in an automotive gas turbine the centrifugal compressor is driven at 40000 rpm by an axial turbine. the compressor
an inventor claims to have developed a device that takes an air stream at 20degc 274 kpa and produces two separate
A piston contains 0.5kg of water. The initial volume of the piston is 0.125 m3 and the pressure inside the piston is 300kPa. The water is expanded to a volume of .31701 m3. The pressure inside the piston remains constant. Determine the amount of heat..
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