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A simple Rankine cycle uses water as the working fluid. The boiler operates at 6000 kPa and the condenser at 50 kPa. At the entrance to the turbine, the temperature is 450 degrees C. The isentropic efficiency of the turbine is 94%, pressure and pump losses are negligible, and the water leaving the condenser is subcooled by 6.3 degrees C. The boiler is sized for a mass flow rate of 20 kg/s. Determine the rate at which heat is added in the boiler, the power required to operate the pumps, the net power produced by the cycle, and the thermal efficiency.
A dense sand has an effective friction angle of 43 and c'=0. A dry, 2.8-inch diameter sample is tested in drained triaxial shear with a confining pressure of 2500 psf. What axial load, P (in pounds), will be required to fail the sample?
Water with a static pressure of 1.96kN/M2 flows through an 800 mm diameter pipe. A pitot tube pressure gage in this pipe reads a pressure of 5.88 kN/M2. How do you determine the volume flow rate (Q) of the water? (Q = 1.40 M^3/sec, V=2.79 M/sec)
The owners wish to achieve an initial acceleration from rest of 22 ft/(sec^2) on a level paved surface. What is the minimum coefficient of road adhesion needed to achieve this acceleration
The force F = 90i + 60j + 20k acts at the point (0,0,40). Compute the moment of the force about a line through the origin that has direction cosines (1/sqrt(3), 1/sqrt(3), 1/sqrt(3), 1/sqrt(3)).
After falling from rest from a height of 32 m, a 0.45 kg ball rebounds upward, reaching a height of 22 m. If the contact between ball and ground lasted 1.5 ms, what average force was exerted on the ball?
Formulate a Linear Program for Blend Mix at Bluegrass Distillery, The Bluegrass Distillery produces custom-blended whiskey
An aquifer has a hydraulic conductivity of 12 ft/day and an effective porosity of 17% and is under a hydraulic gradient of 0.0055 m/m. A. Compute the specific discharge in m/s.
A finished 2 x 4 timber (actual size 1 5/8 in. x 3 1/2 in. x 10 ft long) is used as a fixed-end, fixed-end column. If the modulus of elasticity for the timber is 1600 ksi and a factor of safety of 3 with respect to failure by buckling is specified
Assume the vehicle, including the engine compartment is completely sealed. Each tire has about 1 ft by 0.67 ft of tire tread in contact with the road surface. Assume that the specific weight of the water flowing is 62.4 lb/ft3
A man bought a 5% tax-free municipal bond .It cost $1000 and will pay $50 interest each year for 20 years.At maturity the bond returns the original $1000 .If there is 2% annual inflation
Steam expands in an turbine operating in steady-state conditions with a mass flow rate of 40,000 kg/hr. The steam enters the turbine at 8 MPa and 500 C, and exits as a saturated vapor at 40 kPa.
a simple beam with a pin support at A on the left side of my beam, and a roller connection 20 feet away on the far right side of the beam labeled C, with the midspan point (10 feet) labeled B.
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