1. Pump Project Overview

2. DISCLAIMER & USAGE
The content of this presentation is for informational purposes only and is intended for students attending Louisiana Tech University only.
The authors of this information do not make any claims as to the validity or accuracy of the information or methods presented.
Any procedures demonstrated here are potentially dangerous and could result in damage and injury.
Louisiana Tech University, its officers, employees, agents and volunteers, are not liable or responsible for any injuries, illness, damage or losses which may result from your using the materials or ideas, or from your performing the experiments or procedures depicted in this presentation.
The Living with the Lab logos should remain attached to each slide, and the work should be attributed to Louisiana Tech University.
If you do not agree, then please do not view this content.
boosting application-focused learning through student ownership of learning platforms

3. Pumps are devices that mechanically raises or moves fluids (liquids and gases) through the application of suction or pressure
d hall
d hall
d hall

4. Two Basic Types of Pumps
Centrifugal
Positive Displacement
A spinning impeller forces fluid from the inlet towards the outlet, creating a pressure differential to move fluid
Moves fluid at a fixed speed by suctioning in fixed amounts of fluid that is then forced into the discharge pipe by a moving piston or plunger.

5. Fabrication and Testing of a Centrifugal Pump

6. mostly involves drilling holes
Pump Fabrication
teams of two students
mostly involves drilling holes

7. Other Parts & Pump Assembly
SolidWorks Model
Other Parts & Pump Assembly
Pump Body
Faceplate
Impeller (your own design)

8. Impeller cavity in pump body
Designing the Impeller
Impeller Must Fit in Pump Body
Slightly smaller than motor shaft to allow a press fit
Inside radius of impeller cavity is 0.50 inch; making the impeller radius 0.45 inch leaves a 0.05 inch clearance
Impeller cavity in pump body
The target depth of the impeller cavity is 0.5 inches; if this dimension is too large, the impeller will rub on the face plate
Making a little offset here keeps the impeller from rubbing against the bottom of the impeller cavity

9. Pump Testing See how high your pump can pump water!
Measure electrical current and voltage as well as the mass of water collected at various heights
Quantify the performance of your pump … as discussed later!
h = head
m = mass of water collected