Logo Attributed to 2003 Solar Car Team

1

• Logo Attributed to 2003 Solar Car Team
• Second Update Presentation
• Benchmarking
• Presenters
• Jonathan Evans jre5_at_utah.edu
• Kelty Wakeley keltywakeley_at_hotmail.com

2
Introduction

• Schedule
• Budget
• Updates
• Critical Function Prototype CFP
• Benchmarking

3
Schedule

• Near Term Deliverables
• Mount Battery Boxes
• Cut out Lower Shell
• Mount Lower Shell

• Long Term Deliverables
• Build Solar Array
• Mount Solar Array
• Securing Canopy
• Mount Upper Shell

4
Budget

• Respirators
• Battery Harness
• Steering Linkage
• Projected Available Funds 2550

5
Updates

• Respirators and Cartridges
• Pump up tires
• Design battery box mounts

6
Critical Function Prototype II
Critical Function Prototype II
McMaster Unversity Shell

• Upper Shell Mounting
• Orient solar cells
• Must be lightweight
• Must close firmly
• Why?
• Necessary for optimal performance
• Applying Skills

Upper Shell
Upper Shell Support
Source http//www.solarcar.mcmaster.ca/
7
Benchmarking

• Solar Cell Type
• Power Output
• Speed
• Frame Type
• Shell Type
• Exterior Dimensions

8
Solar Cell Type
Polycrystalline Solar Cell

• Other teams
• Gallium Arsenide (GaAs) gt20 efficiency
• Monocrystalline lt17 efficiency
• Polycrystalline lt15 efficiency
• Current State
• Amorphous Silicon
• Efficiency 5-7

Scale 4 inches X 4 inches
Source http//www.plastecs.com/Solar_Cell_Polycry
stalline_14.6_eff._2.jpg
9
Power Output

• Other teams
• 1-2kWatts total array
• Peak battery output up to 10kW
• Power Point Trackers
• Current State
• Battery Power Only
• Arrays need to be built

10
Speed
Western Michigan University Sunseeker

• Other teams
• Cruising Speed 65kph
• Max Speed gt120kph
• Current State
• Designed for 65 kph

Source http//www.speedace.info/solar_cars/solar_
car_images/sunseeker_michigan_road_to_calgary.jpg
11
Frame Type
Frame Type

• Three Major Types
• Space Frame
• Monocoque
• Semi-Monocoque
• Combination of both
• Current State
• Space Frame

Space Frame
Source http//www.prin.edu/solar/ra6_ug_frame.jpg
Monocoque Frame
Source http//www.formulasun.org/education/se9_ch
assis.html
12
Shell Type
Shell Type
Queens Unviersity Solar Car Designs

• Composite Material
• Carbon Fiber
• Fiberglass
• Shape
• Minimize Drag
• Current State
• Fiberglass

Source http//www.solarcar.queensu.ca/cars.php
13
Exterior Dimensions
Exterior Dimensions

• Set by Competition
• Maximum
• 5 meters X 1.8 meters X 1.6 meters
• No Minimum
• Our Choice
• Maximum Dimensions

Solar Power Array mounted on Exterior Shell
1.8m
Source http//www.speedace.info/speedace_images/s
olar_car_typical_bodywork_array.gif
14
Conclusion

• Schedule
• Budget
• Updates
• Critical Function Prototype
• Benchmarking

15
Question and Answer

• Presenters
• Jonathan Evans jre5_at_utah.edu
• Kelty Wakeley keltywakeley_at_hotmail.com
• Faculty Advisor
• Dr. Eberhard Bamberg bamberg_at_mech.utah.edu