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Calculate the reversible work out of the two-stage turbine shown in Problem 4.86, assuming the ambient is at 25?C. Compare this to the actual work, which was found to be 18.08 MW.
Problem 4.86
Cogeneration is often used where a steam supply is needed for industrial process energy. Assume that a supply of 5 kg/s steam at 0.5 MPa is needed. Rather than generating this from a pump and boiler, the setup in Fig. P4.86 is used to extract the supply from the high-pressure turbine. Find the power the turbine now cogenerates in this process.
Find the reactions - draw the shear diagram and draw the moment diagram
Seawater flows steadily into an open 100 liter tank initially filled completely with freshwater. The freshwater mixes thoroughly with the seawater and the mixture overflows out of the tank.
A 200 m wide natural stream, whose cross-section can be approximated by a rectangular cross-section, contains a dischargeof 80 cumecs. If the specific energy of the flow is 1.5 timesthe minimum specific energy
The continuous one-way slab shown below is loaded with a uniform service live load of 80 psf, and a superimposed dead load of 40 psf. Assume the beam width is 16” and use f’c = 5 ksi, and fy = 60 ksi. a) What is the minimum slab thickness for which a..
A chemical mixing basin is to be designed to blend chlorine and treated wastewater. The basin flow is 700 gallons per minute and the basin dimensions are 5 feet by 5 feet by 5 feet water depth.
When does the binding of a virtual function occur? 1 During program compilation 2 During program execution 3 During program linking 4 During program termination
Determine the maximum displacement of the plate A if the billet strikes the plate with a speed of 8 . Neglect the mass of the springs, rollers and the plates A and B. Take = 4000 , = 40000 .
Determine the uniform flow depth in a trapezoidal channel with a bottom width of 8 ft and side slopes of 1 vertical to 2 horizontal. The discharge is 100 ft3/s. Manning roughness factor is 0.015 and the channel bottom slope is 0.004.
A 20g mass vibrates accordings to the equation x=0.0009cis(3pit/2 + pi/2). Find the amplitude, period, max velocity, max acceleration, spring constant "K", and the total energy of the system
Calculate the time average F of the total force tangent to the toad exerted on the tires during the 8 s. Treat the car as a particle and neglect air resistance.
A jet aircraft is flying in a standard atmosphere at an altitude of 4,000 m at 900 km/hr. The frontal intake area of the jet engine is 0.80 m2. The engine exhaust area is 0.56 m2. The temperature of the exhaust gas is 120°C.
On a spreadsheet plot the concentration of waste (C) as a function of time in days considering that t = 0 corresponds to the time when the input concentration increases to 1500 mg/L.
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