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Consider a regenerative Rankine cycle with a 600_C and 4-MPa throttle, a 5-kPa condenser, and an open feedwater heater at 500 kPa. Turbine efficiencies are 85%. Neglect pump work. (a) Draw labeled, coordinated T-s and flow diagrams.
(b) Determine the fraction of the throttle mass flow that passes through the extraction line.
(c) Calculate the turbine work per unit mass at the throttle.
(d) Calculate the cycle efficiency, and compare it with the simple-cycle efficiency.
(e) Calculate the heat rate.
what is the pressure of gases molecules inside spherical balloon that has a radius of .1 m at temperature of 27 c. if
steam is contained in a rigid container at an initial pressure of 100 psia and 600 f. the pressure is reduced to 10
the number of women-years of exposure is less than for established methods and all available evidence should be
draw the shear and bending-moment diagrams for the beam and loading shown and determine the maximum normal stress due to bending.
both a gage and manometer are attached to a gas tank to measure its pressure. if the reading on the pressure gage is 80
compare it with efficiency of an otto cycle operating with the same maximum pressure?
air undergoes a isentropic compression in a piston-cylinder assembly from p1- 1atm t1 70 f to p2 5 atm. assuming air
air enters a compressor at 14 psia 80 f with negliible speed and is discharged at 70 psia 500 f with a speed of 500
Solve for the pressure of a gas using both equations at a temperature of 400K and a molar volume of 1x 10-4 m3/mol. For the van der Waals EOS, use parameters of a= 4.1x10-1 (m3/mol)2 Pa, and b=4.3x10-5 m3/mol.
Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).
a 1-kg disk slides on a smooth horizontal table and is attached to a string that passes through a hole in the table.a
at steady state a device receives a stream of saturated water vapor at 210 degrees c and discharges a condensate stream
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