In a steam power plant operating on an ideal Rankine cycle, the steam enters the turbine at 3 MPa and 400°C and is exhausted at 10 kPa. Assuming all ideal processes, determine the following, (a) Thermal efficiency of the cycle and condition of steam at the exit of turbine. (b) Thermal efficiency if the steam is supplied at 3 MPa and 500°C and condition of steam at the exit of turbine. (c) Estimate the increase or decrease of thermal efficiency due to super heating and comment on the result of thermal efficiency and steam exit condition from turbine comparing the two cases.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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In a steam power plant operating on an ideal Rankine cycle,
the steam enters the turbine at 3 MPa and 400°C and is
exhausted at 10 kPa. Assuming all ideal processes,
determine the following,
(a) Thermal efficiency of the cycle and condition of steam at
the exit of turbine.
(b) Thermal efficiency if the steam is supplied at 3 MPa and
500°C and condition of steam at the exit of turbine.
(c) Estimate the increase or decrease of thermal efficiency
due to super heating and comment on the result of thermal
efficiency and steam exit condition from turbine comparing
the two cases.
Transcribed Image Text:In a steam power plant operating on an ideal Rankine cycle, the steam enters the turbine at 3 MPa and 400°C and is exhausted at 10 kPa. Assuming all ideal processes, determine the following, (a) Thermal efficiency of the cycle and condition of steam at the exit of turbine. (b) Thermal efficiency if the steam is supplied at 3 MPa and 500°C and condition of steam at the exit of turbine. (c) Estimate the increase or decrease of thermal efficiency due to super heating and comment on the result of thermal efficiency and steam exit condition from turbine comparing the two cases.
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