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Water vapor in an air stream is to be adsorbed in a 12.06-cm-inside-diameter column packed with 3.3-mm-diameter Alcoa F-200 activated alumina beads with an external porosity of 0.442. At a location in the bed where the pressure is 653.3kPa, the temperature is 21°C, the gas flow rate is 1.327 kg/min, and the dew-point temperature is 11.2oC, estimate the external, gas-to-particle mass-transfer and heat-transfer coefficients.
If the generated emfs are 200 and 210 V, respectively, determine the load voltage and the armature current of each machine.
The maximum liquid level in the tank will be at 16 m. Estimate the plate thickness required at the base of the tank. Take the allowable design stress for aluminum as 90 N/mm2.
Determine the maximum amount of work obtainable in a flow process from 1 kg of steam at 3000 kPa and 723.15 K (450°C) for surrounding conditions of 300 K and 101.33 kPa.
The additional investment required is $1,250,000, and the additional operating costs are negligible. Is the modification worth making?
Prepare a skeleton outline and a detailed outline
If one of the machines has its field excitation adjusted such that it delivers 125 A lagging current, determine the armature current, power factor, excitation voltage, and power angle of each machine.
How do you use the rule of 70 to calculate economic growth?
Determine the apparent power and the reactive power drawn by the load.
a. How many design variables must be specified in order to calculate the output stream compositions and flow rates? b. How would you optimize these variables if the objective of the separator was to maximize recovery of condensable components into ..
prepare an approximate plot of temperature versus concentration
A geometrically similar 200 pump having a similar efficiency curve is used to pump water through 112.5 m of 150 mm pipe, f = 0.025. The static lift is 10 m. Neglecting minor losses in the pipe calculate the flow, head and power required to drive t..
Neglect leakage and fringing, and consider the iron to be infinitely permeable. The coil has 1000 turns and carries a direct current of 3 A. Compute the pull on the plunger for g = 1.25 cm.
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