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A 900-MW powerplant of the pressurized-water nuclear-reactor type uses once-through cooling from a river. Regulations do not permit cooling water discharge back to the river hotter than 5°C above river ambient. Estimate a.) the necessary water flow, in kg/s, and b.) the reduction, in percent, in this water flow if the plant efficiency is improved by 1 percentage point. Take cp for water = 4.184 kJ/kg·K
Note:
Answer for a.) is 8.73 *10^4 kg/sec (Please show work)Also, Please solve b.) with work
The noise temperature at the receiver antenna terminals is T0=290K. The equipment and environment suggest that 6dB of margin be used to assure performance under all conditions. For reliable voice communications, a received signal should be 17dB ab..
Consider the mapping of the unit circle (i.e., z = 1ejω, -π ≤ ω
Point charge 1.5{\rm \mu C} is located at x = 0, y = 0.30 {\rm m}, point charge -1.5{\rm \mu C} is located at x = 0 y = -0.30 {\rm m}. What are (a)the magnitude and (b)direction of the total electric force that these charges exert on a third point..
1A baseband signal with 4 kHz bandwidth is sampled at 1.2 times of its Nyquist sampling rate. Calculate:A. The sampling rate at which this signal is sample.B. The guard frequency band between the repeats of the spectrum.
calculate the mmf when the machine operates at rated voltage at full load? PLease explain how to get the solution to this problem?
A load operating at 6400 Vrms draws 56 A at a PF of0.812 lagging. Find: (a) the peak current in amperes (b) the instantaneous power at t=2.5 ms assuming an operating frequency of 60 Hz
The loading of an industrial facility on a 240 V, 60 Hz system includes: 20 kW resistive load 50 kW induction motors operating at 0.7 power factor lagging 10 kVA capacitive load at 0.7 power factor leading
Design a circuit using the transistors and other components used during the semester which provides at least 15 dB of gain. The 3dB filter points should be 100 HZ and 25 KHZ. Assume 110 Volt (AC) power supply.
(a) triple frequency currents from flowing inthe main lines of the power system; (b) while still providing a time sinusoidal flux linking the coils of each phase of the secondary to produce sinusoidal voltage for the customers.And how does ungroun..
Make a sketch of the band diagram for an n-type semiconductor and a p-type semiconductor doped with phosphorus and boron at 5*10^15/cm^3 respectively. Label all the features of your drawing, as well as the relative energy
The angle of departure is defined as 180 degrees plus the phase angle of GH computed at the complex pole, but ignoring the contribution of that particular pole.
Design a sequential Mealy circuit with two inputs A and B, and output X using JK flip-flops. The circuit produces an output X = 1 when it detects the sequence of either A = 00 or B = 11, otherwise X = 0.
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