Q16: Water is being pumped from the bottom of a well 150 ft deep at a rate of 50 gal/min through a pipe of 3.03 inch diameter, into an atmospheric storage tank 30 ft above the ground (water inside the well and in the storage tank are assumed stationary) A 2hp pump is used for pumping water, to prevent freezing in the winter a small heater added heat to water at a rate of 5000 Btu/min, total heat losses from the system3 1000 Btu/min. Calculate: - (A) The velocity ft/sec at which water is flowing through the pipe. (B) The total enthalpy change per min. Given that ge=32.17 lbm.ft/lbf.sec2 1 ft=12inch 1ft=7.48 gal pwater=62.4 lb/ft³ 1 Btu =252 Cal 1 Btu = 778 ft.lbf %3D 1 hp = 550 ft.lbf/sec

Q16: Water is being pumped from the bottom of a well 150 ft deep at a rate of 50 gal/min through a pipe of 3.03 inch diameter, into an atmospheric storage tank 30 ft above the ground (water inside the well and in the storage tank are assumed stationary) A 2hp pump is used for pumping water, to prevent freezing in the winter a small heater added heat to water at a rate of 5000 Btu/min, total heat losses from the system3 1000 Btu/min. Calculate: - (A) The velocity ft/sec at which water is flowing through the pipe. (B) The total enthalpy change per min. Given that ge=32.17 lbm.ft/lbf.sec2 1 ft=12inch 1ft=7.48 gal pwater=62.4 lb/ft³ 1 Btu =252 Cal 1 Btu = 778 ft.lbf %3D 1 hp = 550 ft.lbf/sec

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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Q16: Water is being pumped from the bottom of a well 150 ft deep at a rate of 50 gal/min
through a pipe of 3.03 inch diameter, into an atmospheric storage tank 30 ft above the
ground (water inside the well and in the storage tank are assumed stationary) A 2hp
pump is used for pumping water, to prevent freezing in the winter a small heater added
heat to water at a rate of 5000 Btu/min, total heat losses from the system= 1000
Btu/min.
Calculate: - (A) The velocity ft/sec at which water is flowing through the pipe.
(B) The total enthalpy change per min.
Given that go=32.17 lbm.ft/lbf.sec2
1 ft=12inch
1ft=7.48 gal
pwater=62.4 lb/ft
1 Btu =252 Cal
1 Btu = 778 ft.lbf
1 hp = 550 ft.lbf/sec

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