Participants name: Nadia Deana Noriko Chew Meyyammai

AbstractObjective

Petroleum is one of the main fuel used to generate cars all around the world.However,petroleum is non-renewable and will soon be used up. Hence,the purpose of this project is to create a new way to generates which is by using solar energy.

Innovation of the car design

We have designed such a car which would fulfill all our requirements needed which is being aerodynamic,light-weighted and can obtain the maximum speed.

Maximum speed at certain brightness A solar-powered car would need to have the

best surface area in order to obtain more sunlight.Thus,our car has reached the maximum speed at certain brightness as we have designed it to at the most optimum solar car by increasing the surface of the solar cells and by using parallel and series circuit in wiring our solar cells.

ObjectiveThe objective of this project is to find an

alternative source to replace petroleum,a non-renewable energy.Next is to save the environment . By using a solar powered car,we can reduce air pollution as one of the main polutants is the smoke exfumed by cars.

Moreover,by using solar powered cars,we can save cost. This is important as the cost of petroleum is increasing rapidly thus raising the cost of living.

Scientific TheoryThe direct conversion of light energy into

electricity is known as photovoltaic.Some materials exhibit a property known as the

photoelectric effect. Photons of light will convert to electrons at the atomic level.

Solar cells are one of the main materials which exhibit this property.

Multiple solar cells are joined together to create an array. Generally, the larger the surface area of the array the more electricity will be generated.

In simpler words,take a person as the solar cell,solar energy as food and a company as the car.

The food consumed by a person,the more energy will the person obtain. So,in order for a company to work efficiently more workers are needed and if more food is consumed by each and one of the workers,more work would be done by them.

Compilation pictorial explanation of the solar cell

Pictorial explanation of aerodynamic shape

Explanation of gear ratio selection We choose the ratio of gear of 1:2 because

it can balance the weight of the car. This is to prevent our car from overturning or collapsing. It is also to ensure the tyres can rotate the gear easily.

Explanation of material selection We use corrugated board as the chasis

and top of the car because its light weighted and stiff.

We also use poly foam as the body of the car because it is light,stiff, and manageable. It is also fairly easy to shape out our design. We use the colour papers for our decorations because it is light and won’t effect the weight of the car. It is also very attractive.

Explanation of tyre selectionWe used tyres of the same size because if we

used tyres of different sizes,it would affect our weight thus making it slower to use. We also used tyres of the same size to increase its power hence making it move faster.

Wiring the solar cells.

Pictorial Explanation of making Solar Car

Making the chasis and body of the car using poly foam and corrugated board.

Designing the body of the car andfiixing the wires of solar panel

Specific explanation of car model Height

- The height of our car is 7.2 cmWide-the wide of the car is 6cmWeight- The weight of our car is 90 grams.The diameter of tyres-the diameters of our tyre is 2.5 cm

Test DriveDate Time Brightness Speed

3/5/2011 12.OO noon Very bright 10s/5m

3/5/2011 2 .00 pm Bright 15s/5m

3/5/2011 5.00 pm Moderate 18s/5m

ConclusionThe solar car was a success as the motor and

the solar cells worked perfectly as the car reached its maximum speed. While making this car,we face many problems but we managed to overcome it as well as we could have. We learnt many things alongside gaining more experience.

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