A centrifugal compressor running at 10000 pm delivers 660 m3/min of free air. The air is compressed from 1 bar and 20°C to a pressure ratio of 4 with an isentropic efficiency of 82%. Blades are radial at outlet of impeller and flow velocity of 62 m/s may be assumed throughout constant. The outlet radius of the impeller is twice the inner and the slip factor may be assumed as 0.9. The blade area coefficient may be assumed 0.9 at inlet. Calculate: 1. Final temperature of air 2. Theoretical power 3. Impeller diameters at inlet and oilet 4. Breadth of impeller at inlet 5. Impeller blade angle at inlet 6. Diffuser blade angle at outlet
A centrifugal compressor running at 10000 pm delivers 660 m3/min of free air. The air is compressed from 1 bar and 20°C to a pressure ratio of 4 with an isentropic efficiency of 82%. Blades are radial at outlet of impeller and flow velocity of 62 m/s may be assumed throughout constant. The outlet radius of the impeller is twice the inner and the slip factor may be assumed as 0.9. The blade area coefficient may be assumed 0.9 at inlet. Calculate: 1. Final temperature of air 2. Theoretical power 3. Impeller diameters at inlet and oilet 4. Breadth of impeller at inlet 5. Impeller blade angle at inlet 6. Diffuser blade angle at outlet
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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A centrifugal compressor running at 10000 pm delivers 660 m3/min of free air. The air is compressed from 1 bar and 20°C to a pressure ratio of 4 with an isentropic efficiency of 82%. Blades are radial at outlet of impeller and flow velocity of 62 m/s may be assumed throughout constant. The outlet radius of the impeller is twice the inner and the slip factor may be assumed as 0.9. The blade area coefficient may be assumed 0.9 at inlet.
Calculate:
1. Final temperature of air
2. Theoretical power
3. Impeller diameters at inlet and oilet
4. Breadth of impeller at inlet
5. Impeller blade angle at inlet
6. Diffuser blade angle at outlet
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