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A 600 MW power plant has an efficiency of 36 percent with 15 percent of the waste heat being released to the atmosphere as stack heat and the other 85 percent taken away in the cooling water. Instead of drawing water from a river, heating it, and returning it to the river, this plant uses an evaporative cooling tower wherein heat is released to the atmoshphere as cooling water is vaporized.
At what rate must 15C makeup water be provided from the river to offset the water lost in the cooling tower?
The Jordan aquifer has been pumped for several decades, yet remains fully saturated. Explain where the water is coming from.
A 98% efficient ESP follows the Deutsch equation. If the gas flow rate changes and the efficiency drops to 94%, calculate the ratio of the new gas flow rate to the old gas flow rate.
Assume the capacity of a pile supporting a transmission tower is modeled with a log-normal random distribution with a mean of 250 tons and a c.o.v. of 20%. a) What is the probability that the pile will survive a load of 275 tons
Given that the max shear strength of the the concrete shore is 10 kPa and the engineer requires a F.S. of 2.5, find the required are of concrete for the thrust block.
Find the area of steel reinforcement required for a concrete T-beam for the following data; f'c = 3 ksi, fy=60 ksi,d=18 in, t= 4.5 in., bw= 10 in., bf= 36 in., 3/4" aggregate, and the section sustains a total factored bending moment 82 k-ft.
A continuous geogrid having a reinforcement coverage ratio equal to 100 percent. A continuous metallic grid consisting of W4 bars having a diameter equal to 5.7 mm, a distance between longitudinal bars equal to 150 mm, a distance between transvers..
Can a contractor claim that liquidated damages should be limited Because of political unrest, only 20% of rooms are occupied. Liquidated damages are set to $30000 per day -> reasonable amount Contractor is late 15 days.
a whirlpool is modeled as the combination of a free and a forced vortex. the maximum velocity in the whirlpool is 10 m/s, and the radius at the juncture of the free and the forced vortex is 10m.
Identify the forces that work against the success of cladding systems in keeping the elements out.
The dry weight of a core is 28.20 gm. When saturated with a brine having a density of 1.15 gm/cc, the weight increases to 31.50 gm. Calculate the apparent porosities if the matrix is 1) quartz or 2) calcite.
A business wishes to discharge salt into a river. the concentration of salt from the business is 210 mg/L. the flow of water in the river (upstream) is 0.5 m^3/s. Upstram the concentration of salt in the river 15 mg/L.
Calculate the stopping sight distance over the crest of a 1,500 ft vertical curve with a plus grade of 4.4percent and a minus grade of 2.3 percent.
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