of the pump is 70%. Calculate (a) the developed head of the pump and (b) the total power input. (c) If the pump manufacturer specifies a required NPSH of 8 ft, will the pump be suitable for this service?

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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**Problem 2.** Water at 150°F is pumped at the rate of 60 gal/min from a reservoir at atmospheric pressure. The gauge pressure at the end of the discharge line is 42 psi. The discharge point is 12 ft above the level is the reservoir and the suction line is 6 ft above the level of the reservoir. The discharge line is a 1 ½ in. nominal diameter steel pipe with a schedule number of 80. The pressure drop due to friction in the suction line is known to be 0.8 psi, and that in the discharge line is 7.2 psi. The mechanical efficiency of the pump is 70%. Calculate (a) the developed head of the pump and (b) the total power input. (c) If the pump manufacturer specifies a required NPSH of 8 ft, will the pump be suitable for this service?
Transcribed Image Text:**Problem 2.** Water at 150°F is pumped at the rate of 60 gal/min from a reservoir at atmospheric pressure. The gauge pressure at the end of the discharge line is 42 psi. The discharge point is 12 ft above the level is the reservoir and the suction line is 6 ft above the level of the reservoir. The discharge line is a 1 ½ in. nominal diameter steel pipe with a schedule number of 80. The pressure drop due to friction in the suction line is known to be 0.8 psi, and that in the discharge line is 7.2 psi. The mechanical efficiency of the pump is 70%. Calculate (a) the developed head of the pump and (b) the total power input. (c) If the pump manufacturer specifies a required NPSH of 8 ft, will the pump be suitable for this service?
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