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Water is the working fluid in a Carnot vapor power cycle. Saturated liquid enters the boiler at a pressure of 160 bar, and saturated vapor enters the turbine. The condenser pressure is 0.08 bar. Determine
(a) the thermal efficiency.
(b) the back work ratio.
(c) the heat transfer to the working fluid per unit mass passing through boiler, in kJ/kg.
(d) the heat transfer from the working fluid per unit mass passing through the condenser, in kJ/kg.
Compare the flexibility of a 0.01-in. diameter steel wire to a 0.02-in. diameter aluminum wire. The Young's modulus of steel is 30 Msi and that of aluminum is 10 Msi.
Heat Transfer A blacksmith wants to forge a 30 cm long metal bar. The initial temperature of the bar is at 1100oC. The surrounding air temperature is 23oC
during a simple orienteering exercise a person walks 250 m south then 620 m at an angle of 30 north of east and finally
A concrete pile is 20 m long and has a cross section of 0.46 m 3 0.46 m. The pile is embedded in a sand having g 5 17 kN/m3 and f9 5 388.
Three particles are projected simultaneously in a completely general manner. Show that the plane containing the three particles remains parallel to some fixed plane.
The depth and velocity of the uniform flow upstream of the jump are 0.5 m and 8 m/s, respectively. Determine the value of h if the flow downstream of the jump is to be uniform flow.
The cable breaks in the middle, and the two 7.5-ft halves are connected in parallel for a second try. Estimate the impact force and cable stress produced if the wrecked vehicle still remains fixed.
The bottom section is DN 150, the middle is DN 125, and the top is DN 100. The air is at 0°C and standard atmospheric pressure.
an infinity long flat plate is initially at rest immersed in a liquid pool with properties n alpha tinfin. the plate is
The power output of an ideal, open-cycle gas turbine cycle is 75 MW and its pressure ratio is 16. Air enters the compressor at 520 R and enters the turbine at 2800 R. Using variable specific heats at 1000°F: cp = 0.263 Btu/lbm-R and k = cp/cv = 1.353..
Determine the maximum upward displacement of the block measured from the equilibrium Position - natural period of the vibration.
A gust momentarily increases the angle of attack by 0.5 degree, without changing the equivalent airspeed, resulting in an additional 4 kN of lift. Find the slope of the lift coefficient curve C_L alpha, expressed per degree.
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