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A small three-phase IG has the following nameplate data: 110 V, 1.140 rpm, 60 Hz, Y connection, and 1250 W. The blocked rotor test at 60 Hz yielded the following: I = 69.4 A, P = 4200 W.
The turn ratio between stator and rotor is 1.13, and the rotor resistance referred to the stator is 4.2 Ω. What are the full load torque and air-gap power?
What is the function of 3-D modelling in CAD as used in design in mechanical engineering?
The temperature and heat flux are plotted assuming radial symmetry, that is, even though the sensors are on both sides of the center line, they are plotted from one side only. Discuss whether or not you feel this is a good assumption. If so, are ther..
A multiple disc clutch employs 3 steel and 2 bronze discs having outer diameter 300 mm and inner diameter 200 mm. For a coefficient of friction of 0.22 find the axial pressure and the power transmitted at 750 r.pm if the normal until pressure is 0.13..
A cooked mashed potato is cooled on trays in a chilling unit with refrigerated air at 2 C blown over the product surface at high velocity. The depth pf the product is 30mm and the initial temperature is 95 C. The product has a thermal conductivity of..
A counter flow, concentric tube heat exchanger used for engine cooling has been in service for an extended period of time. The heat transfer surface area of the exchanger is 5 m2, and the design value of the overall convection coefficient is 38 W/..
Ten pounds-mass of R-22 is at an initial volume of 4.059 ft3 and pressure of 200 psia. It is compressed isobarically until its volume is two-thirds of its initial volume. The piston is then held in place as the refrigerant cools until its temperature..
Consider two glass spheres in contact just below their melting point. Draw schematically their shape change and describe its kinetics with annealing time. No gravity effect is assumed.
a square-shaped board 1 m 1 m with weight of 16 n slides down a 30 o - inclined ramp with a terminal velocity of 22.5
Determine the current through the capacitor just before and just after the switch is closed in Figure P5.23. Assume steady-state conditions for t 0.
Hot, moist outside air passes over a cooling coil, from which it exits in a saturated state at p=14.7lbf/in^2 and T=65F. The air is then mixed adiabatically with room air at p=14.7lbf/in^2, T=75F, phi=25%.
steam at 40degrees c condenses on the outside of a 6.40-m-long 3.7-cm-diameter thin horizontal copper tube by cooling
At what range of velocities should wind tunnel tests be performed to ensure that the experimental data are relevant to the real reef balls?
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