6.1 A centrifugal blower operating at 15,000 rpm compresses air from 68°F and 14.7 psia to 10 psig at 1350 cfm and requires 80 hp. (a) Determine the efficiency of the blower at this point. (b) What are the speed, flow rate, and shaft power if it is desired to increase the discharge pressure to 12 psig. (c) If the suction is throttled to 12 psia, what is the discharge pressure and flow rate (referred to 68°F and 14.7 psia)?

6.1 A centrifugal blower operating at 15,000 rpm compresses air from 68°F and 14.7 psia to 10 psig at 1350 cfm and requires 80 hp. (a) Determine the efficiency of the blower at this point. (b) What are the speed, flow rate, and shaft power if it is desired to increase the discharge pressure to 12 psig. (c) If the suction is throttled to 12 psia, what is the discharge pressure and flow rate (referred to 68°F and 14.7 psia)?

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

6.1
A centrifugal blower operating at 15,000 rpm compresses air from 68°F and 14.7 psia
to 10 psig at 1350 cfm and requires 80 hp. (a) Determine the efficiency of the blower at this
point. (b) What are the speed, flow rate, and shaft power if it is desired to increase the discharge
pressure to 12 psig. (c) If the suction is throttled to 12 psia, what is the discharge pressure and
flow rate (referred to 68°F and 14.7 psia)?

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