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Water is the working fluid in an ideal vapor power cycle with reheat. Superheated vapor enters the first turbine stage at 8 MPa, 500oC and expands to 2 MPa. Then, it is reheated to 500oC before entering the second turbine stage, where it expands to the condenser pressure of 7.5 kPa. The mass flow rate of steam entering the first turbine stage is 2630 kg/h. Assume a source temperature of 1500 K and a sink temperature of 300 K. Take T0 = 300 K. Sketch the cycle on a T-s diagram with respect to saturation lines and determine (a) the rate of the heat input to the working fluid, in kW, (b) the rate of the heat rejected from the working fluid, in kW, (c) the net power output, in kW, (d) the thermal efficiency of the cycle, (e) the exergy destruction associated with each of the processes, in kW, and (f) the second law efficiency.
the water level in a tank is 20 m above the ground. a hose is connected to the bottom of the tank and the nozzle at the
this would provide you with a set of Reynolds numbers. Next, using the integral method, determine the velocity profiles within the boundary layer to be followed by determination of the heat transfer coefficient values for your selected Reynolds numbe..
If cable spacing is 1 m into the paper, what is the cable tension.
a crate containing 40 bricks each of mass 1.3kg is placed on a storage framework as shown.a calculate the reaction
consider a container of volume 250ml that is divided into two compartments of equalnbspsize. in the left compartment
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Design a bridge that will withstand 4 fully loaded semi-trailers
Air enters a turbine at 40 kN/m2, 900 C, and leaves at 10 kN/m2. The flow is reversible and adiabatic. Inlet velocity is quite low and outlet velocity is 150 m/s through a cross-sectional area of 0.20 m2. Calculate the power output in kW.
If the chest is completely filled with ice, calculate the time for the ice to completely melt. State your assumptions. The enthalpy of fusion for water is 330 kJ/kg.
a steel plate with dimensions shown below is subjected to 150 kn tensile force and 300 n-m bending moment. the plate is
one pound mass of water in a piston-cylinder assembly initially a saturated liquid at 1 atm undergoes a
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
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