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Consider a steam power plant that operates on a reheat Rankine cycle. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the pump is 95 percent. Determine the exergy destruction associated with the heat addition process and the expansion process. Assume a source temperature of 1600 K and a sink temperature of 285 K. Also, determine the exergy of the steam at the boiler exit. Take P0 = 100 kPa. Answers: 1289 kJ/kg, 247.9 kJ/kg, 1495 kJ/kg

Consider a steam power plant that operates on a reheat Rankine cycle. Steam enters the high-pressure turbine at 10 MPa and 500°C and the low-pressure turbine at 1 MPa and 500°C. Steam leaves the condenser as a saturated liquid at a pressure of 10 kPa. The isentropic efficiency of the turbine is 80 percent, and that of the pump is 95 percent. Determine the exergy destruction associated with the heat addition process and the expansion process. Assume a source temperature of 1600 K and a sink temperature of 285 K. Also, determine the exergy of the steam at the boiler exit. Take P0 = 100 kPa. Answers: 1289 kJ/kg, 247.9 kJ/kg, 1495 kJ/kg

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Consider a steam power plant that operates on a
reheat Rankine cycle. Steam enters the high-pressure turbine
at 10 MPa and 500°C and the low-pressure turbine at 1 MPa
and 500°C. Steam leaves the condenser as a saturated liquid at
a pressure of 10 kPa. The isentropic efficiency of the turbine
is 80 percent, and that of the pump is 95 percent. Determine
the exergy destruction associated with the heat addition process and the expansion process. Assume a source temperature
of 1600 K and a sink temperature of 285 K. Also, determine
the exergy of the steam at the boiler exit. Take P0 = 100 kPa.
Answers: 1289 kJ/kg, 247.9 kJ/kg, 1495 kJ/kg

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