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A balanced delta-connected load has a per-phase impedance of 45 60° Ω. It is connected to a three-phase, 208-V, 60-Hz supply by a three phase feeder that has a per-phase impedance of 1.2 + j1.6 Ω.
(a) Determine the line-to-line voltage at the load terminals.
(b) If a delta-connected capacitor bank, with a per-phase reactance of 60 Ω, is connected in parallel with the load at its terminals, compute the resulting line-to-line voltage at the load terminals.
A stream of 5.00 wt% oleic acid in cottonseed oil enters an extraction unit at a rate of 100.0 kg/hr. A separate stream of propane enters the unit. Propane is able to dissolve oleic acid but cannot mix with the cottonseed oil. Two streams exit the un..
An electronics plant uses an adsorption system to recover solvent from a vent gas stream and prevent volatile organic compound (VOC) emissions. The vent gas flow rate is 20 m3 /s of dry air at 293 K, 1.5 atm.
question 1suppose the system shown below. initially the gas is at 200 kpa and occupies a volume of 0.1 m3. the spring
where and Qp are constants for a given gas-polymer pair. Consider the diffusion of hydrogen through a poly (dimethyl siloxane) (PDMSO) sheet 20 mm thick.
question 1a handling operations for solidpowder substances are often a source of dust generation and are a source of
Find the slip at which the maximum developed torque occurs.
Draw another diagram overlaying the Pourbaix diagrams for nickel and silver and use this diagram to explain the likely outcome of holding a solution of nickel ions in a silver container.
Non -zero heat flux component , since temperature changing in r - direction only , qr is present , the control volume , dr , as shown - Heat flux entering the control volume at r= r = qr = 4.π.r^2. qr|r
The amount of KOH solution required per hour. the adiabatic temperature of the reaction (no cooling is used
Determine the vessel dimensions if the vessel is vertically mounted. Evaluate the relief loads for the blocked outflow and external fire cases and hence determine the relief valve size.
what is the Pareto efficient number of streetlights to provide? (HINT: you have to calculate social marginal value and put it equal to marginal cost).
Determine the composition of streams leaving the first FV unit. Determine the amount of liquid and vapor leaving the first FV unit.
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