ICE Project

1. SOLAR CAR
TEAM : SECTION 3 & 4

2. CONTENT
• Solar energy
• Solar car and it’s advantages
• Solar car design parameters
• Chassis design
• Solar panels selection
• Electric motor selection
• Electric circuit and wiring
• Transmission system design
• Brake and steering system
• Financial statement
• The end
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3. SOLAR ENERGY
• The sun's energy is the primary source of energy for all surface phenomena and life
on Earth.
• Solar energy which comprises of radiant heat
and light from the sun can be harnessed with
some modern technology like photo-voltaic,
solar heating, artificial photosynthesis, solar
architecture and solar thermal electricity.
• The earth gets 174 Petawatts(1015watt) of incoming solar radiation in the upper
atmosphere. About 30% is reflected back to space and the rest is absorbed by
oceans, clouds and land masses.
• Solar energy contribute in many other sources of energy .
• its technologies are broadly characterized as either passive solar or active solar
depending on how they capture and distribute solar energy or convert it into solar
power.
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4. SOLAR ENERGY
• Active solar techniques include the use of photovoltaic systems, concentrated solar
power and solar water heating to harness the energy.
• Passive solar techniques include orienting a building to the Sun, selecting materials with
favorable thermal mass or light-dispersing properties, and designing spaces that
naturally circulate air.
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Topaz 550 MW photovoltaic power station (California) GM solar tracking tree (solar charging )

5. SOLAR CAR
• A solar car is an electric vehicle powered by solar energy from solar panels
• Solar cars depend on PV cells to convert sunlight into
electricity to drive electric motors.
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6. SOLAR CAR
• Advantages of solar cars:
Free pollution.
Very economical (no fuels)
Low Maintenance
• Disadvantages
Initial investment is high
Less power
Requires better ways to store energy
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7. SOLAR CAR
What’s our goal?
• Design a model for a small racing car .
• Car powered by solar energy.
• Single seat.
• Maximum speed 45 km/hr.
• Accelerate from 0 to max speed in 1 min.
• Car maximum weight 150 kg.
• Max driver weight 70 kg.
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8. SOLAR CAR COMPONENTS
• Solar panels
• Electric motor
• Chassis
• Batteries
• Brakes
• Steering
• Wheels
• transmission
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9. CHASSIS
• A chassis is a means of rigidly connecting all the wheels and suspension points
together.
• Carrying all the components required that make up a car.
• The primary challenge is to maximize the strength and safety and minimize the
weight of the car .
• We used a space-frame chassis.
Light weight
Low center of gravity
low cost compared with other frames
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10. CHASSIS
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11. ELECTRIC MOTOR
• An electric motor is an electrical machine that converts electrical energy into
mechanical energy.
• We use a DC motor, WHY ?
• Motor power : The power needed to propel a vehicle can be determined by
combining the forces that needs to be applied to the vehicle to move it with the
vehicle speed at which this propelling force must be sustained.
• Forces on the car :
• Weight and rolling resistance
• Drag :
• Drag coefficient depends on the frontal area geometry
• If we reduce drag coefficient then less motor power will used
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12. ELECTRIC MOTOR
• Force of acceleration
Assume an acceleration time of 1 minute to accelerate
• Total force =The Rolling Resistance +Aerodynamic Drag Force
+Force OF Acceleration
• Max. Power = F*V = 144 *45*5/18 =1800 W.
• Torque = F*r = 144 * 0.15 = 21.6 N.M.
• So we select a motor with:
• 2.2Kw, 2000rpm, 10.68Nm and 24v dc
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13. TRANSMISSION SYSTEM
• Objective : transmit power from motor to wheel shaft
• Using chain drive system
• Chain specification
Driver : 13 Teeth 0.5 in pitch and 6mm face width
Driven : 54 teeth 0.5 in pitch and 6mm face width
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14. TRANSMISSION SYSTEM
• Wheel Shaft design (ASME code)
• Minimum shaft diameter = 20 mm
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15. TRANSMISSION SYSTEM
• Bearing selection
• Designation: SKF 6404
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16. SOLAR PANELS
• It’s designed to abs.orb the sun's rays as a source of energy for generating electricity.
• Working principle
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17. SOLAR PANELS
• Almost 90% of the World’s photovoltaic today are based on some variation of silicon.
• Types of solar panels
Monocrystalline solar cell (mono-Si)
Polycrystalline solar cell (multi-Si)
Thin-film solar cell (TFSC)
Amorphous solar cells
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18. SOLAR PANELS
• Solar cell selection
• We select polycrystalline Silicon Solar Cells as a suitable type for our car.
• We have Battery with capacity 100 Ah need to be charged in 5 HR.
• Selected solar cell specification
• 24v 255w with area of (1m*1.64m)
• Current=255/24=10.6 A
• Time required to charge the battery = 100/10.6=9.4 hr.
• The battery complete charging from external source.
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19. BATTERY
• In stand-alone systems, the power generated by the solar panel is usually used to
charge a battery.
• The electricity produced by PV modules during the day is supplied to the battery
and/or the load
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20. BRAKE SYSTEM
• A brake is a mechanical device that inhibits motion by absorbing energy from a
moving system.
• Two types of brake systems.
• We use disk brake.
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21. STEERING SYSTEM
• The steering system is a group of parts that transmit the movement of the steering
wheel to the front, and sometimes the rear, wheels.
• The primary purpose of the steering is to allow the driver to guide the vehicle.
• We use linkage steering system
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22. FINANCIAL STATEMENT
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1,000.00
‫ج‬.‫م‬.,9%
2,600.00‫ج‬.‫م‬.,24%
2,000.00‫ج‬.‫م‬.,18%
2,000.00‫ج‬.‫م‬.,18%
500.00‫ج‬.‫م‬.,4%
50.00‫ج‬.‫م‬.,0%
150.00‫ج‬.‫م‬.,1%
65.00‫ج‬.‫م‬.,1%
100.00‫ج‬.‫م‬.,1%
1,000.00‫ج‬.‫م‬.,
9%
200.00‫ج‬.‫م‬.,2%
200.00‫ج‬.‫م‬.,2%
400.00‫ج‬.‫م‬.,4%
500.00‫ج‬.‫م‬.,5% 200.00‫ج‬.‫م‬.,2%
TOTAL COST
chassis electric motor solar cell baterry solar charger
shaft cost chain & sproket bolts bearing Electrical conductors
Electric cables Brake system Team Transportation Accessories Loses
10,965.00‫‏‬.‫ج.م‬

23. ©solar car team 2017 23
component price
chassis 1,000.00‫‏‬.‫ج.م‬
electricmotor 2,600.00‫‏‬.‫ج.م‬
solar cell 2,000.00‫‏‬.‫ج.م‬
baterry 2,000.00‫‏‬.‫ج.م‬
solar charger 500.00‫‏‬.‫ج.م‬
shaft cost 50.00‫‏‬.‫ج.م‬
chain & sproket 150.00‫‏‬.‫ج.م‬
bolts 65.00‫‏‬.‫ج.م‬
bearing 100.00‫‏‬.‫ج.م‬
Electrical conductors 1,000.00‫‏‬.‫ج.م‬
Electriccables 200.00‫‏‬.‫ج.م‬
Brake system 200.00‫‏‬.‫ج.م‬
Team Transportation 400.00‫‏‬.‫ج.م‬
Accessories 500.00‫‏‬.‫ج.م‬
Loses 200.00‫‏‬.‫ج.م‬
TOTALCOST 10,965.00‫‏‬.‫ج.م‬
INCOME 11,500.00‫‏‬.‫ج.م‬
financial statement