1. Lab 05: System Analysis 1 (Wind Tunnel Testing) Advanced Energy Vehicle

2. AEV Project Objective (Problem Definition) INITIAL CONCEPTS (Brainstorming) EXPERIMENTAL RESEARCH ANALYZE DESIGN DECISION RESEARCH COMPARE FINAL DESIGN Present AEV Design PT 1 PT 2 PT 3 PT 4 (System Analysis) (Programming)

3. Propulsion Efficiency

4. Power

5. Units  Output Power is a Mechanical System Typical Units are: ??? Hint: when you ask for a car’s power is it given in units of … ??  Input Power is an Electrical System Typical Units are: ??? Hint: when you look up your light bulb’s power, it is given in units of … ?? Answer: Horsepower Answer: Watts  Watts does NOT equal horsepower so the need to convert horsepower to watts using the AEV Lab Manual

6. Advance Ratio

7. How does this relate to AEV?  Looking at a plot of Propulsion Efficiency vs Advance Ratio Increasing Voltage

8. How does this relate to AEV?  Looking at a plot of Propulsion Efficiency vs Advance Ratio  Where is the 2 volts A or B?  2 volts divided by a 7.4 volt battery is approximately equivalent to 27% MotorSpeed A B

9. Quick Introduction on Setup Power Supply Velocity Speed Indicator Thrust Stand Data Acquisition Arduino Control System Wind Tunnel Speed Control

10. Things to Remember  Quiz 6 (Last one for LAB!)  Executive Summary for Lab 05  Update Project Portfolio  Extra Credit Video (Due: Lab 07 (Part 1))  Continue to work on PDR (Due: Lab 09B)