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A fluid level control system includes a tank, a level sensor, a fluid source, and an actuator to control fluid inflow. Consult any classical control text1 to obtain a block diagram of an analog fluid control system. Modify the block diagram to show how the fluid level could be digitally controlled.
Draw T-S diagram of the cycle.
What are the main limitations of the resolution of a scanning electron microscope (SEM) image? Is resolution strongly dependent on lens numerical aperture (NA)?
Calculate the torque generated by the device.
Adipic acid is used in the manufacture of nylon 6,6. It is made by hydrogenation of phenol to a mixture of cyclohexane and cyclohexane (known as KA oil-ketone and alcohol), followed by oxidation with nitric acid.
What is the armature current corresponding to the maximum torque?
Determine the electromagnetic force on the plunger by the application of Equations (12.4.19) and (12.4.20). Interpret the significance of the sign that you obtain in the force expression.
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:
For the a-b-c phase sequence, take t = 0 at the instant when the flux linkages with the a-phase are maximum.
Determine a good estimate for the compressibility factor Z of saturated hydrogen vapor at 25 K and 3.213 bar. For comparison, an experimental value is Z = 0.7757.
At a power angle of 30°, the power developed by the motor is 33 kW. Determine the reactive kVA of the motor, and the overall power factor of the motor and the load.
At 50 °C the system acetone(1) and chloroform(2) forms an azeotrope with composition x1 = 0.416. What is the pressure at the azeotropic composition at 50 °C?
Devise a control system for the distillation column described in Chapter 17, Example 17.2. The flow to the column comes from a storage tank. The product, acetone, is sent to storage and the waste to an effluent pond. It is essential that the speci..
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