Q2: In a single-stage gas turbine, gas enters and leaves in axial direction. The angle is 68°, the stagnation temperature and stagnation pressure at stage inlet are 800°C and 4 bar, respectively. The exhaust static pressure is 1 bar, total-to-static efficiency is 0.85, and means blade speed is 480 m/s, Assume y = 1.33, and Cpg = 1.147 kJ/kgK. Determine 1. The work done, 2. The axial velocity which is constant through the stage, 3. The total-to-total efficiency, and 4. The degree of reaction.

Q2: In a single-stage gas turbine, gas enters and leaves in axial direction. The angle is 68°, the stagnation temperature and stagnation pressure at stage inlet are 800°C and 4 bar, respectively. The exhaust static pressure is 1 bar, total-to-static efficiency is 0.85, and means blade speed is 480 m/s, Assume y = 1.33, and Cpg = 1.147 kJ/kgK. Determine 1. The work done, 2. The axial velocity which is constant through the stage, 3. The total-to-total efficiency, and 4. The degree of reaction.

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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Question

Q2: In a single-stage gas turbine, gas enters and leaves in axial direction. The nozzle efflux
angle is 68°, the stagnation temperature and stagnation pressure at stage inlet are 800°C
and 4 bar, respectively. The exhaust static pressure is 1 bar, total-to-static efficiency is
0.85, and means blade speed is 480 m/s, Assume y = 1.33, and Cpg 1.147 kJ/kgK.
Determine
1. The work done,
2. The axial velocity which is constant through the stage,
3. The total-to-total efficiency, and
4. The degree of reaction.

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Step 3: 2. Determine the axial velocity:

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Step 4: 3. Determine the total-to-total efficiency:

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Step 5: 4. Determine the degree of reaction:

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