1. 10/26/2003By: Strobridge & Sulkoski1 G.U.S.T.E.R. General Universal System for Testing External Rotors

2. 10/26/2003By: Strobridge & Sulkoski2 Background  System used for educational purpose.  A fan is used to provide airflow for the testing of small wind rotors.  The current system used is insufficient & inadequate. Consists of:  Lego generator & leds to measure power output.  The channel tube is a box shape made out of scrap material.

3. 10/26/2003By: Strobridge & Sulkoski3 Problem Design & build a wind rotor testing system. Needs to be:  Capable of testing wind rotors up to 30 cm in diameter.  Automated, so the user can obtain measurements of rotor power output to wind speed.

4. 10/26/2003By: Strobridge & Sulkoski4 Concept

5. 10/26/2003By: Strobridge & Sulkoski5 Concept #1  Fixed rotor & blade pitch. Rotor is fixed pointing straight into the wind. Blades are at a fixed angular pitch.

6. 10/26/2003By: Strobridge & Sulkoski6 Concept #2  Adjustable rotor direction. Rotor and generator assembly are allowed to be turned in & out of the wind.

7. 10/26/2003By: Strobridge & Sulkoski7 Concept #3  Adjustable rotor angle & blade pitch. Rotor and generator assembly are allowed to be turned in & out of the wind. Blade pitch is allowed to be changed for finding angle for max power output.

8. 10/26/2003By: Strobridge & Sulkoski8 Pros & Cons Concept#1#2#3 Pros Manageable functionality. Fewest moving parts. Variable conditions. More useful data. Maximum efficiency. Max adjustability / educational use. Cons Scope. One direction. Non-“real world” environment. One blade pitch. More moving parts. Base rotor design. Many moving parts.

9. 10/26/2003By: Strobridge & Sulkoski9 Thank You