An engineer in a steam power plant is tasked with calculating: a. The isentropic efficiency of the turbine b. The entropy generation of the turbine The following measurements were taken in the plants a. Upstream of the turbine: 6 MPa, 500c b. Between the turbine and the condenser: 20 kPa c. Flow rate at the condenser outlet: 3 kg/s d. Power output of the turbine: 2.6 MW Part 1: Sketch the power plant cycle showing where all data on the sketch Part 2. Show the inlet and outlet state points on the P-h diagram and on the T-s diagram for steam. Do the calculation to pin down the exit state point. Part 3. Calculate the isentropic efficiency Part 4. Calculate the entropy generation

An engineer in a steam power plant is tasked with calculating: a. The isentropic efficiency of the turbine b. The entropy generation of the turbine The following measurements were taken in the plants a. Upstream of the turbine: 6 MPa, 500c b. Between the turbine and the condenser: 20 kPa c. Flow rate at the condenser outlet: 3 kg/s d. Power output of the turbine: 2.6 MW Part 1: Sketch the power plant cycle showing where all data on the sketch Part 2. Show the inlet and outlet state points on the P-h diagram and on the T-s diagram for steam. Do the calculation to pin down the exit state point. Part 3. Calculate the isentropic efficiency Part 4. Calculate the entropy generation

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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Concept explainers

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.

Question

**Problem 1**

An engineer in a steam power plant is tasked with calculating:

a. The isentropic efficiency of the turbine
b. The entropy generation of the turbine

The following measurements were taken in the plant:

a. Upstream of the turbine: 6 MPa, 500°C
b. Between the turbine and the condenser: 20 kPa
c. Flow rate at the condenser outlet: 3 kg/s
d. Power output of the turbine: 2.6 MW

**Part 1:** Sketch the power plant cycle showing where all data is on the sketch.

**Part 2:** Show the inlet and outlet state points on the P-h diagram and on the T-s diagram for steam. Do the calculation to pin down the exit state point.

**Part 3:** Calculate the isentropic efficiency.

**Part 4:** Calculate the entropy generation.

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