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A three-phase, wye-connected, 220-V, 10-hp, 60- Hz, six-pole induction motor (using Figure 13.2.6 for notation) has the following parameters in ohms per phase referred to the stator: R1 = 0.294, R'2 = 0.144, Xl1 = 0.503, X'12 = 0.209, and Xm = 13.25. The total friction, wind age, and core losses can be assumed to be constant at 403 W, independent of load. For a slip of 2.00%, compute the speed, output torque and power, stator current, power factor, and efficiency when the motor is operated at rated voltage and frequency. Neglect the impedance of the source.
She believes she can extract 1700 kW of work and 220 kW of heat that will be used to boil water at 1 bar. Her process, whose details are yet to be determined, will receive streams A and B as inlet and will have a single outlet stream that will be ..
The amount of KOH solution required per hour. the adiabatic temperature of the reaction (no cooling is used
Carbon dioxide can be separated from other gases by preferential absorption into an amine solution. The carbon dioxide can be recovered by heating at atmospheric pressure. Suppose pure CO2 vapor is available from such a process at 80°C and 1 bar. Sup..
Then the monkey on the right begins to climb the rope while the monkey on the left simply holds on. When the right monkey has raised himself through height h(relative to the floor), what has been the change in the position of the left monkey?
Find the ratio of the amount refluxed R to the product withdrawn (D).
Consider a diatomic gas, N2, at 298 K. This gas is compressed reversibly and adiabatically from 15 dm3 to 5.0 dm3. Assume that the heat capacity of this gas is CV=5R/2, and that it behaves ideally. Calculate the final temperature, T2, of the gas.
The process used in the manufacture of aniline from nitrobenzene is described in Appendix F, Design Problem F.8, which is available in the online material at booksite.Elsevier.com/Towler. The process involves six significant stages:
The rms induced voltage across the coil is 1 kV, and each turn has a length l = 112.5 cm and a width w = 10 cm. Determine the required value of the flux density.
Calculate the ?S for the transfer of one mole of octane to water using the change in multiplicities assumed for the first shell of water molecules surrounding the molecules.
Design a decanter for this duty, for a feed rate of 3500 kg/h. Concentrate on the separation of the water and aniline. The densities of water-aniline solutions are given in Appendix F, Problem F.8, available in the online material at booksite.Else..
find the voltage across the 8-A current source in the circuit of Figure P2.2.6 with the use of nodal analysis.
Styrene is made by dehydrogenation of ethyl benzene, which is formed by alkylation of benzene with ethylene. Propose target yields for the alkylation and dehydrogenation steps if the forecasted prices per metric ton are styrene $800, ethylene $800..
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