Multiple choice question Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480°C, and the condenser pressure is 8 kPa. Steam expands through the first-stage turbine to 1.2 MPa and then is reheated to 480°C. Assume the pump and each turbine stage has an isentropic efficiency of 85% and 92%, respectively. Determine for the cycle: To solve the problem you need to: a. Need specific internal energies at all the states? b. need specific volumes at all the states? c. need both specific enthalpies and specific internal energies at all the states? d. need specific enthalpies at all the states?
Multiple choice question Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480°C, and the condenser pressure is 8 kPa. Steam expands through the first-stage turbine to 1.2 MPa and then is reheated to 480°C. Assume the pump and each turbine stage has an isentropic efficiency of 85% and 92%, respectively. Determine for the cycle: To solve the problem you need to: a. Need specific internal energies at all the states? b. need specific volumes at all the states? c. need both specific enthalpies and specific internal energies at all the states? d. need specific enthalpies at all the states?
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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Water is the working fluid in an ideal Rankine cycle with reheat. Superheated vapor enters the turbine at 12 MPa, 480°C, and the condenser pressure is 8 kPa. Steam expands through the first-stage turbine to 1.2 MPa and then is reheated to 480°C. Assume the pump and each turbine stage has an isentropic efficiency of 85% and 92%, respectively. Determine for the cycle:
To solve the problem you need to:
a. Need specific internal energies at all the states?
b. need specific volumes at all the states?
c. need both specific enthalpies and specific internal energies at all the states?
d. need specific enthalpies at all the states?
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