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A steam power plant operates with a boiler output of 20 kg/s steam at 2 MPa, 600?C. The condenser operates at 50?C, dumping energy into a river that has an average temperature of 20?C. There is one open FWH with extraction from the turbine at 600 kPa, and its exit is saturated liquid. Find the mass flow rate of the extraction flow. If the river water should not be heated more than 5?C, how much water should be pumped from the river to the heat exchanger (condenser)?
An airplane with a Clark Y airfoil cross-section weighs 3500 lbs. The chord length is 6ft and the wingspan is 36 ft. Determine the: a) Minimum speed and power to take off, if the angle of attack is 12.4 degrees.
A core sample of basalt, 4 inches long and 2 inches in diameter, was tested in unconfined compression. The basalt is known to have a modulus of elasticity = 9.1 x 106 psi.
A circular rc girder for the foundation raft of water tower has dia 10m.the udl load transmittedby 8 coloumn on te girder being 300 kn/m.the width of the beam is 500 mm and the over depth.
A sand with Gs=2.66 and e=0.60 is completely dry. It then becomes wetted by a rising groundwater table. Compute the unit weight under the following conditions: a.) when the sand is completely dry
A box has a volume of 0.57 cubic meters. It is 5.2 feet in length and 15 inches in width. How many centimeters tall is the box?
A chalk core plug having a pore volume of 17.0307 cm3 is fully saturated with reservoir brine. A synthetic oil flood is conducted on this plug. It is found that 12.25 cm3 of reservoir brine was displaced from this plug by the synthetic oil.
When it is dried out in an oven, it weighs 122.7 g. The specific gravity of solids is found to be 2.66. Find the water content, void ratio, porosity, degree of saturation, and wet and dry unit weights.
The uniform 30-kg bar OB is secured to the accelerating frame in the 30° position from the horizontal by the hinge at O and roller at A.
Determine the slopes of the total and effective stress paths and the maximum excess pore water pressure
Two chambers, A and B both have manometers with the same fluid with specific gravity 1.4. When h(sub a) = 6 cm and h(sub b) = 4 cm, what is the gage pressure in chamber A
Standard air is drawn from the atmosphere into a 1.25 m diameter cylindrical duct by a fan mounted inside the duct. This air is discharged down stream from the fan through a 0.6 m diameter duct at a velocity of 25 m/s and atmosphere pressure.
What additional vexation occurs when two of these pumps are in parallel? How might we avoid instability?
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