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A three-phase, 5-hp, 220-V, six-pole, 60-Hz induction motor runs at a slip of 0.025 at full load. Rotational and stray-load losses at full load are 5% of the output power. Calculate the power transferred across the air gap, the rotor copper loss at full load, and the electromagnetic torque at full load in newton-meters.
Forty-five kilograms of a solution containing 30 wt% ethylene glycol in water is to be extracted with furfural. Using Figures 4.14a and 4.14c, calculate:
What is the kinetic energy and the potential energy of ball B at point II? The potential energy is given by PE mgz, where m is the mass in kilograms, g is the gravitational constant (9.81 m/s2), and z is the distance in meters.
Determine the primary to secondary ratio of the line-to-line voltages and the line currents.
Two beds are used, with one in operation and one in regeneration. If the bed is designed to be 80% loaded at the end of a 2 hour operation cycle, estimate the bed volume. Also determine the flow rate of sodium hydroxide required during the regener..
Determine the 50- Hz applied voltage and the slip at which the motor will develop a torque equal to its 60-Hz full-load value.
A horizontal steel pipe having inner and outer diameter as 150 and 180 mm respectively is lagged with 50 mm thickness of 85% magnesia insulation inside ,which has flue gas flowing at 260oc
For the following cases: How much energy is lost every day when the steam temperature is maintained at 200oC, and the surrounding average air temperature is 20.0oC, and the surroundings average air temperature is 20.0oC? Neglect losses though the end..
Burning the coke deposited on the catalyst particles generates all the heat necessary for catalytic cracking. Therefore, the coke burning rate is a critical parameter to control the rate of cracking. The composition of dry flue gas from the regenerat..
Develop an understanding of overall concepts of various management functions - Demonstrate knowledge of acquisition of information
A paper by Ruckenstein and Tsai (1981)* shows that an "optimum pore size" can exist for catalytic reactions of large solute molecules in solvent-filled pores. Obtain the paper from your library and read it carefully. Then derive the analytical equati..
discuss the operation of the flip-flop, and obtain a table indicating the state of normal output Q after the passage of one clock pulse for various combinations of the inputs JK.
Neglecting stator resistance and rotational losses, and assuming constant rotor resistance, determine the slip at maximum torque and the slip at full load.
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