Q2 .. h, are 12m. The pump efficiency is 79%, and the pump is driven by an electric motor. A pump moves water @10°C from a lake into a large, pressurized holding tank as shown. The flow rate, Q. is 375 L/min, and the piping system losses, a) 1) Sketch the setup (simple schematic is good), 2) label the z datum, and 3) identify and label the boundary conditions (P, V, and z) at 1 and 2 for use in the General Energy Equation (GEE). Provide values and units for the boundary conditions. Hint: For identifying good locations for boundary conditions, where are the velocities approximately zero? b) Calculate the head added to the fluid, h, by the pump. Give your answer in units of m. Hint: Be careful with signs in manipulating the GEE. Show as many steps as you need to get your h, equation correct. c) Calculate the power added to the fluid by the pump in units of kW. d) Determine the required electric motor size to drive the pump in units of HP. = 200 kPa tank Holding Tank Air 6 m Pump Lake

Q2 .. h, are 12m. The pump efficiency is 79%, and the pump is driven by an electric motor. A pump moves water @10°C from a lake into a large, pressurized holding tank as shown. The flow rate, Q. is 375 L/min, and the piping system losses, a) 1) Sketch the setup (simple schematic is good), 2) label the z datum, and 3) identify and label the boundary conditions (P, V, and z) at 1 and 2 for use in the General Energy Equation (GEE). Provide values and units for the boundary conditions. Hint: For identifying good locations for boundary conditions, where are the velocities approximately zero? b) Calculate the head added to the fluid, h, by the pump. Give your answer in units of m. Hint: Be careful with signs in manipulating the GEE. Show as many steps as you need to get your h, equation correct. c) Calculate the power added to the fluid by the pump in units of kW. d) Determine the required electric motor size to drive the pump in units of HP. = 200 kPa tank Holding Tank Air 6 m Pump Lake

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.34P

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