2010quiz2 - 650:462 Power Plants Quiz 2 Open books, notes...

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Center for Advanced Energy Systems Michael R. Muller, Director 640 Bartholomew Road, Piscataway NJ 08854 (908) 644-8469 FAX: (732) 445-0730 mullerm@rci.rutgers.edu http://caes.rutgers.edu 650:462 Power Plants Quiz 2 NAME: __________________________ October 6, 2010 Open books, notes In a special application of a Rankine Cycle it is essential that the quality of the steam going into the condenser is 100%. One way to do this is to send only part of the steam through the turbine and the rest of it through a valve. Consider an ideal Rankine cycle with a valve in parallel with in isentropic turbine as shown in the figure. Both turbine and throttle operate at steady state and heat transfer with the surroundings and kinetic and potential energy effects can be neglected. 1) Determine the percent of flow through the valve which will result in an exit (point 4) with 100% quality steam. 2) What is the power generated from the turbine (in kW) 3) If there are 2674 kJ/kg of energy added in the boiler and the pump is ignored, what is
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2010quiz2 - 650:462 Power Plants Quiz 2 Open books, notes...

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