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A 500 MW electric station, utilizes a Rankine Cycle power plant with superheat. The steam temperature and pressure at the turbine inlet are 1000ºF and 2000 psia. The temperature of the condensing steam in the condenser is maintained at 60ºF. Assume all processes to be ideal.
A.) Draw a sketch of the cycle on the T-s diagram
B.) Determine the cycle thermal efficiency
C.) What is the mass flow rate going around the cycle?
D.) Determine the rate at which heat must be added to the boiler
E.) The boiler is heated by the combustion of coal. The heating value of coal is 12,000 Btu's per poiund of coal. NInety percent of this value is available for the boiler (the other ten goes up the smoke stack). Determine the tons of coal required per hour to fuel the plant.
F.) The heat rejected from the power plant in the condenser goes into cooling water supplied from a large lake. If the allowable temperature increase can only be 8ºF, what would teh mass flow rate of cooling water have to be? (let Cp= 1.0 Btu/lb R)
The tank cover is airtight, and the pressure above the water surface is 2 atm gage. The system is at sea level. Determine the max height to which the water stream could rise.
a force acts at the origin of a coordinate system in a direction defined by the angles qx 65.0deg and qz 69.7deg.
the average atmospheric pressure in denver elevation 1610 m is 83.4 kp a. determine the temperature at which water
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The angular acceleration of a shaft is defined by the relation a = -0.25w, where a is expressed in rad/s^2 and w in rad/s. Knowing that at t=0 th angular velocity of the shaft is 20 rad/s, determine the time required for the shaft to come to rest.
a machine table driven by closed loop positioning system consists of a motor gearbox lead screw and an optical encoder.
a basketball of mass 0.570 kg is dropped from rest from a height of 1.25 m. it rebounds to a height of 0.734 m. a how
an electric motor operating at steady state draws a current of 10amps with a voltage of 220v. the output shaft power
at intel 0.00005 of manufactured chips have defects. in a day 5 million chips are produced. what is the probability
a turbine produces 2 mw of power while accepting steam at 3 mpa and 400 c and rejecting steam at 50 kpa and 100c. find
Consider just the vertical (y) response of the system when the beam is being stretched. Show that the spring constant, ka, is approximately 70.6 mN/m. What is the steady state amplitude of the vertical response? See Figure A below for an engine..
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