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A steam turbine is to operate on a simple regenerative cyck. Steam is supplied dry saturated at 40 bar, and is exhausted to a condenser at 0.07 bar. The condensate is pumped to a pressure of 3.5 bar at which it is mixed with bleed steam from the turbine at 3.5 bar. The resulting water which is at saturation temperature is then pumped to the boiler. For the ideal cycle calculate. neglecting feed-pump work.
(i) the amount of bleed steam required per kilogram of supply steam;
(ii) the cycle efficiency of the plant:
(iii) the specific steam consumption.
Calculate the estimated energy available in the wind using the average wind speed and the Rayleigh function. For bin 16, assume an average wind speed of 16 m/s. Calculate the estimated energy using the method of FAT (13-10) in the chapter. Calculat..
the vapor-compression refrigeration system uses r-134a as its working substance. the pressure upstream and downstream
an insulated rigid-wall tank contains air at 20 c and 2 bar. a paddle wheel located in the tank does work on the air in
an accelerometer was used to measure the vibrations of machinery. the sensor output was acquired during an experiment
A shaft with a 2-inch outer diameter must deliver 5000 ft-lbs of torque. The shaft must be hollow and must simultaneously carry hydraulic fluid at an internal pressure of 30,000 psi. Assuming the shaft is closed-ended, and using the von Mises yield c..
consider a double-sided centrifugal compressor with the following design parametersoutlet diameter of impeller 50
What is the maximum bending stress in the board?
the magnesium alloy modulus of elasticity e 44.7 gpa coefficient of thermal expansion 2610-6oc tube ab is capped with
Reheat is added to an ideal Rankine steam power cycle to improve it’s efficiency and turbine exit quality. Steam enters the HP turbine at 15 MPa and 600C. Steam exits the HP turbine at 4 MPa and enters the boiler for reheat. Then the steam enters t..
Pull-strength tests on 10 soldered leads for a semi conductor device yield the following results in pounds force required to rupture the bond: Another set of 8 leads was tested after encapsulation to determine whether the pull strength has been incre..
find the force required for the direct extrusion of commercially pure aluminum 1100-o billet 8 in in diameter into a
An air-conditioning system is shown in Fig. in which air flows over tubes carrying Refrigerant 134a. Air enters with a volumetric flow rate of 50 m3/min at 32°C, I bar, and exits at 22°C, 0.95 bar. Refrigerant enters the tubes at 5 bar with a quality..
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