1. Ribbon Propeller Drive Dr. Kenneth Kroos 4/27/04 Kelli Barbato Brynn Fredette – Team Leader Kerry Kamon Lindsey White

2. Problem Statement Our project goal is to explore various configurations of an Archimedes screw and determine its effectiveness as a propeller. Our project goal is to explore various configurations of an Archimedes screw and determine its effectiveness as a propeller.

3. Problem Statement Possible applications: Propeller Propeller Pump Pump Hydroelectric power Hydroelectric power

4. Problem Statement Possible advantages: Minimize cavitation Minimize cavitation Decrease root stress Decrease root stress Increase thrust without increasing rotational speed Increase thrust without increasing rotational speed Conserve energy Conserve energy

5. Design Description Propeller: Based on an Archimedes screw Based on an Archimedes screw Three coils of varying pitch Three coils of varying pitch –Ten configurations Plastic model with metal rod for support Plastic model with metal rod for support

6. Design Description Experiment: Plastic tube Plastic tube Water tank Water tank Scale Scale Drill motor Drill motor Optical tachometer Optical tachometer Video camera Video camera

7. Schedule of Work Spring 2004: Organize, research, brainstorm, learn SolidWorks Spring 2004: Organize, research, brainstorm, learn SolidWorks Fall 2004: Create designs in SolidWorks, perform experiments, analyze data Fall 2004: Create designs in SolidWorks, perform experiments, analyze data Spring 2005: Finalize analysis, write final report, final presentation Spring 2005: Finalize analysis, write final report, final presentation

8. Budget Provided by the ME Department: Space: CEER 109 & 111, TOL 20 Space: CEER 109 & 111, TOL 20 Materials: Wax, plastic, metal rod Materials: Wax, plastic, metal rod Technical help: Lab technician Technical help: Lab technician Equipment: Plastic tube, water tank, scale, optical tachometer Equipment: Plastic tube, water tank, scale, optical tachometer

9. Budget Not provided by the ME Dept.: Equipment: Drill motor, video camera Equipment: Drill motor, video camera Total estimated cost: $100

10. Thanks to Dr. Kroos & Dr. Rosefsky… …Any questions?