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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.
a large tower is to be supported by a series of steel wires.it is estimated that the load on each wire will be 11100N. determine the minimum required wire diameter assuming a factor of safety of 2 and a yield strength of 1030MPa.
an electric moter drivers an axial fan assuming that the desired air velocity 65degree f existing the fan is 50mph and
Gear A rotates with an angular velocity of 100 rpm clockwise. Knowing that the angular velocity of arm AB is 50 rpm counterclockwise, determine the corresponding angular velocity of gear B.
A successive approximation ADC has 4 bits and a reference voltage of 10 V. If the input voltage is 2.8 V, describe each step the ADC undergoes to determine the value of the 4 bits. What input voltage will be computed by the ADC?
a construction crew lifts about 560 lb of material serveral times during the day from a flatbed truck to a 32 foot
one axis of a rrl robot is a linear slide with a total range of 950mm. the robotrsquosnbspcontrol memory has a 10 bit
determine the force exerted by each cylinder in raising the crate for u = 60°, a 5 0.70 m, and L = 3.20 m. Show that the result obtained is independent of the distance d.
Using static equilibrium calculations, calculate how far from the fulcrum the tweezers must be held to avoid damaging the sliver.
Using the required parameters for a typical large size car* and an appropriate frontal Quarter-Car model.
Plot the shear-force and bending-moment diagrams for the beam and derive equations for the shear force V and the bending moment M for any location in the beam
A uniform linear charge density of 4 nC/m is distributed along the entire x axis. Consider a spherical (radius = 5 cm) surface centered on the origin. Determine the electric flux through this surface.
the reynolds number of a fluid flowing through a 5-cm-diameter, square-edged orifice plate meter within a 15-cm pipe is 250,000. Find the discharge coefficient for flange taps.
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