Example 26.8 A centrifugal compressor running at 1440 rpm, handles air at 101 kPa and 20°C and compresses it to a pressure of 6 bar isentropically. The inner and outer diameters of the impeller are 14 cm and 28 cm, respectively. The width of the blade at the inlet is 2.5 cm. The blade angles are 16° and 40 at entry and exit. Calculate mass-flow rate of air, degree of reaction, power input and width of blades at outlet.
Example 26.8 A centrifugal compressor running at 1440 rpm, handles air at 101 kPa and 20°C and compresses it to a pressure of 6 bar isentropically. The inner and outer diameters of the impeller are 14 cm and 28 cm, respectively. The width of the blade at the inlet is 2.5 cm. The blade angles are 16° and 40 at entry and exit. Calculate mass-flow rate of air, degree of reaction, power input and width of blades 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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Transcribed Image Text:Example 26.8 A centrifugal compressor running
at 1440 rpm, handles air at 101 kPa and 20°C and
compresses it to a pressure of 6 bar isentropically. The
inner and outer diameters of the impeller are 14 cm and
28 cm, respectively. The width of the blade at the inlet is
2.5 cm. The blade angles are 16° and 40 at entry and
exit. Calculate mass-flow rate of air, degree of reaction,
power input and width of blades at outlet.
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