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A steam power generation plant produces 200mw of power. Steam leaves the dealer at 150 bar and 650°c. After expansion through the first stage turbine to a pressure of 40 bar, 15% of the steam is extracted to feed the water heater. The remaining steam is heated to 650°c then expanded to a condenser pressure of 0.04 bar through a second turbine stag. It is assumed that the actual cycle will have an efficiency of 70% and the generator mechanical and electrical efficiency is 95%. Calculate the mass flow rate of steam in kg/hr. The steam rate.
at a surface cutting speed of 190 mmin the productive tool life was 60 minutes. at a surface cutting speed of 225 mmin
a package is dropped from the plane which is flying with a constant horizontal velocity of va 160 fts at a height h
a disk has a mass of 4kg and a radius of 90mm it is at rest when it is placed in contact with the belt which moves with
determine the pressure of the water after the partition has been remived and enough heat has been transferred so that the temperature of the water is 3(degrees)C.
Find the turbine's (b) isentropic efficiency (%), (c) reversible work (kJ/kg), (d) irreversibility(kJ/kg), and (e) exergy destruction (kJ/kg). (f) Draw a T-s diagram of the process
Model a cup of coffee as a closed system containing 1 lbm of pure water at constant pressure of 14.7 psia. Using your knowledge of the 2nd Law, prove that it would be impossible for coffee at room temperature of 70 °F to heat up to 120 °F by receivin..
Using the standard machining parameter formulae for milling, determine the speed (rpm), feed (ipm) and machining time (TM) recommended to horizontal mill ANSI #1018 cold rolled steel that is 1.50 inch long with a 10 tooth 4.0 inch diameter slab mill ..
a 50-lb sphere with a radius of qyration of 0.4 ft is accelerated about its centroidal axis. determine the torque
liquid propane c3h8 enters a combustion chamber at 25 c at a rate of 1.2 kgmin where it is mixed and burned with 150
A constant-area duct is fed by a converging-only nozzle. The nozzle receives air from a large chamber at p1=600 KPa and T1=550 K. The duct has a friction length of 5.3, and it is choked at the exit. What is the pressure at the end of the duct? If 80 ..
The compression ratio of an air-standard Otto cycle is 9.5. Prior to the isentropic compression process, the air is at 100 kPa, 17 C, and 600 cm2
an axial flow compressor stage has blade rootmean and tip velocities of 150200 and 250 ms. the stage is to be designed
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