Water vapor enters a turbine with a mass flow of 2kg / h, 6 MPa pressure, 500 ° C temperature and 40 m / s velocity and exits with 300 kPa pressure, 200 ° C and 100 m / s velocity. 200 W heat transfer is made to the environment from the turbine with a surface temperature of 150 ° C. Note: Take T (K) = 273.15 + ◦C and ambient temperature 25◦C. a) Find the power of the turbine, (kW). b) Find the amount of entropy produced in the turbine, (kW / K). c) Find the exergy (kW) of the turbine at the exit conditions.
Water vapor enters a turbine with a mass flow of 2kg / h, 6 MPa pressure, 500 ° C temperature and 40 m / s velocity and exits with 300 kPa pressure, 200 ° C and 100 m / s velocity. 200 W heat transfer is made to the environment from the turbine with a surface temperature of 150 ° C. Note: Take T (K) = 273.15 + ◦C and ambient temperature 25◦C. a) Find the power of the turbine, (kW). b) Find the amount of entropy produced in the turbine, (kW / K). c) Find the exergy (kW) of the turbine at the exit conditions.
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 vapor enters a turbine with a mass flow of 2kg / h, 6 MPa pressure, 500 ° C temperature and 40 m / s velocity and exits with 300 kPa pressure, 200 ° C and 100 m / s velocity. 200 W heat transfer is made to the environment from the turbine with a surface temperature of 150 ° C.
Note: Take T (K) = 273.15 + ◦C and ambient temperature 25◦C.
a) Find the power of the turbine, (kW).
b) Find the amount of entropy produced in the turbine, (kW / K).
c) Find the exergy (kW) of the turbine at the exit conditions.
d) Find the second-law efficiency (exergy efficiency) of the turbine.
e) Find the exergy (kW) destroyed in the turbine.
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