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A three-phase, 50-Hz induction motor has a full load speed of 700 r /min and a no-load speed of 740 r/min.
(a) How many poles does the machine have?
(b) Find the slip and the rotor frequency at full load.
(c) What is the speed of the rotor field at full load
(i) with respect to the rotor? and
(ii) with respect to the stator?
Lay out the flow sheet of the process and justify your choice based on the characteristics of the source water (note: if data not available, you can make your estimations based on other similar sites or commensense); (20%)
Select a process variable (pressure / temperature / level / flow) and conduct a literature survey to determine recent developments in process instrumentation field. Identify any one novel instrument and explain in detail the working of the instr..
Determine the concentration of the exhaust gas and Determine the flow rate of exhaust gas through the smokestack.
What makes mirror reflective?
wave-connected. (Note: The number of parallel paths is equal to the number of poles for lap windings, while it is equal to 2 for wave windings.)
Calculate the percentage of solvent in the dried fabric by weight. What is the concentration of solvent in the dryer exhaust (in g/m3) if the exhaust is at 80 degrees C and 1 atm? The solvent has a molecular weight of 86.
Eliminate Differences in composition and eliminate differences in temperature, pressure and phase
(a) What is the minimum number of theoretical stages necessary to effect this separation? (b) What is the minimum extract reflux ratio?
Calculate the parameters of the equivalent circuit shown in Figure 13.2.5(c).
It is proposed to use an existing distillation column, which is fitted with a dephlegmator (reflux condenser) that has 200 vertical, 50 mm i.d. tubes, for separating benzene from a mixture of chlorobenzenes.
The process produces a net amount of work equal to 4,500 J/mol and it exchanges an unknown amount of heat with the surroundings. Determine the amount of heat exchanged with the surroundings. Is this heat absorbed or rejected by the system?
A strap, instrumented to measure stretch, is worn around the chest to detect respiration whilst a subject is at-rest. The resulting signal is contaminated by electrical noise from the mains at 50 Hz with a similar amplitude to the respiration sign..
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