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Calculate the overall efficiency, the heat rate [MW], and the total fuel rate [kg/s] of a combined-cycle power plant (1) if no supplemental firing is used and (2) if 30% of the gas turbine fuel demand is additionally burned in the supplementary firing of the HRSG. The gas turbine plant and steam turbine plant thermal efficiencies are 37.5% and 26% [both based on lower heating value (LHV)], respectively. Assume that the combined-cycle power plant has an electrical power output of 380 MW and that the fuel HFO No.2 has the lower heating value of 43 MJ/kg.
in a system a lever needs and effort of 200n to lift a load of 350n. the end of the lever arm moves 50cm and the load
In the position shown, the angular velocity and the angular acceleration of the rod AB are 4 rad/sec and 6 rad/sec2, respectively, both counterclockwise. For this instant calculate the velocity and acceleration of collar A. ( AB = 600 mm)
a gas behaves such that the product of its pressure and volume is constant pvc. initially the pressure and volume of
The polynomial method is to be used to solve the equation. For the graphs, Mathcad or similar program is necessary to graph the solution.
a disk has a mass of 4kg and a radius of 90mm, it is at rest when it is placed in contact with the belt, which moves with a constat speed (v =15m/s). knowing that friction is .25 between the disk and the belt. Determine the number of revolution by..
one pound-mass of air at 78 degrees f and 75 psia is contained in a piston-cylinder device. during a reversible process
Draw the front view and right view and the down-view.
electric space heaters for home use commonly utilize a ceramic filament as the heating element. list the mechanical
if the exit velocity needs to be 27 ms and the nozzle tip has a diameter of 0.48 mm what is the volumetric flow rate
find the sum of two harmonic motions of equal amplitude but of slightly different frequencies. discuss the beating
fluid is flowing horizontally at 100gpm from a 2in diameter pipe to a 1in diameter pipe. if the pressure is 10 psi at
If the unit can perform its function either in State 1 or 2, find the steady-state availability A for the device.
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