This preview shows page 1. Sign up to view the full content.
Unformatted text preview: Pump Efficiency / Energy Usage W = weight of water collected over time t The pump has increased the K.E. and P.E. of the water. NOTE: The volume of water pumped per unit time is the flow rate Q (1 liter = 0.001 m3): · Work the Following Example by Hand A pump is connected to an electric motor. The motor is supplied with 1 A of current from a 12 VDC source. The apparatus is run steadily for 30 seconds, and the following measurements are recorded: Mass of Fluid Collected: 500 grams Diameter of Exit Tube: 3/16 inch Density of Water: 1000 kg/m3 Height of fluid exit above reservoir: 30 inches Include ALL units in calculations. It would be very helpful to convert any US Customary units to SI units before beginning the solution to avoid complexity. _______________________________________________ Mathcad Solution: ...
View Full Document
- Winter '08