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A simple steam power system has a turbine inlet state of 6.0 MPa and 540 0C and an exhaust pressure 0.008 MPa. The cooling water in the condenser experiences a temperature rise from 20 to 27 0C and T0 is 20 0C. The adiabatic efficiencies of the turbine and pump are 85 and 70 percent, respectively. Determine, in kJ/kg of steam,The availability changes across the two turbine stages, condenser, reheat section, boiler and pump
amonia as a refrigerant enters the expansion valve at a pressure of 1.5 mpa and a temperature of 32 oc its pressure on
milk is pasteurized if it is heated to 63c for 30 min but if it is heated to 74c it only needs 15 seconds for the same
r-134a is throttled from 1200kpa and 40oc to 200kpa. it is known that heat of 5kjkg is lost from r-134a to the
the uniform beam ab in figure 12.39 has a mass of 900 ibm. g sub l is equal to 32.1740 ftsecsec.a. for a force f of
the piston of a piston-cylinder device containing gas has a mass of 60kg and a cross-section area of 0.04m. the local atmospheric pressure is 0.97bar, and the gravitational acceleration is 9.81ms. determine the pressure inside the cylinder?
calculate the overall efficiency the heat rate mw and the total fuel rate kgs of a combined-cycle power plant 1 if no
water flows through a hydraulic turbine installed in a pipe that connects a high reservoir to a reservoir that is 40m
a projectile enters a resisting medium at x0 with an initial velocity of vo900fts and travels 4 inches before coming to
an unconstrained pistoncylinder assembly with a massless piston is oriented upright in an environment in which the
a 120 lbm base jumper extreme parachutist leaps from el capitan in yosemite national park 3000 ft vertical drop head
calculate the transverse modulus of the peek/carbon fiber composite with 30% volume fraction by tow method. the modulus of peek is 3.8 GPa and the modulus of the carbon fiber is 400GPa. assume the reinforcing factor.
aaa estimates that every year more than 10000 drivers swerve off the road and end up submerged in water. this
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