Presentation on (low cost vacuum cleaner)
- 1. PROJECT ON VACCUM CLEANER BY= AKSHAY KUMAR
- 2. ABSTRACT The goal was to build an Electric Vacuum Cleaner and compare if works better with a 9V Battery and 12V Battery together. I concluded that the much more amount of volts could destroy the machine and also with just a 9V battery the machine works more effectively and easily. The weight also deals with how it works The reason ,why less and more volts were added to compare if with both batteries the machine functions better. Starting with 10 small pieces of paper absorb by the vacuum cleaner. The speed was measured and compared. Materials used to build the vacuum cleaner ,were: Cardboard canister, 2 litre bottle, Plastic pipe tube, DC Motor, 9V Battery, 9V Battery Clip, Switch, Cloth, Two Popsicle Sticks, One ,water bottle cap, Red tape, and Black tape.
- 3. Major Physics behind the vacuum cleaner: • Bernoulli Effect • Venturi Effect
- 4. Vacuum: A space in which the pressure is significantly lower than atmospheric pressure. Air Pressure: Pressure exerted by the weight of air on an object in that air. Definitions
- 5. What Happens • The fan decrease the pressure inside the hose of the vacuum, so air accelerates towards the inlet. • It also changes the potential energy of the air to kinetic energy.
- 6. • The materials used building the vacuum cleaner were: • Cardboard canister • 2 litre Empty Bottle • Plastic Pipe Tube • DC Motor • 9V Battery • 9V Battery Clip • Switch • Cloth • Two Popsicles Sticks • One Water bottle cap • Red Tape • Black Tape Procedure
- 9. The Physics Venturi Effect: It’s a special case of Bernoulli’s principle, in the case of air flow through a tube or pipe with a constriction in it.The air must speed up in the restriction, reducing its pressure and producing a partial vacuum via the Bernoulli effect.
- 10. The Physics: Bernoulli’s Principle: States that in fluid flow, an increase in velocity occurs simultaneously with decrease in pressure.
- 12. Larger vs Smaller Inlet
- 13. • The first step after building the electric vacuum cleaner was adding 10 pieces of paper on the side. • Second step was making the plastic pipe tube absorb the most small piece of paper. • Third step was to analyse if the vacuum cleaner absorbs more small pieces of paper with both 9V Battery and 12V Battery or just 9V battery alone. • Fourth step was counting the number of pieces absorb by the vacuum cleaner 9V Battery and 12V Battery. Also count the number of small pieces of paper absorb by a 9V battery. • Fifth step was record the speed. • Sixth step was to repeat the same procedure again. Differential speeds but same effectivity. Both of the experiments were performed in the same place. The experiment could have been improved if more trials were performed. Methods
- 14. The hypothesis was accurate. The less volts the vacuum cleaner carries works more effectively and absorbs more small pieces of paper without affecting the machine. While with more volts the machine dangers from destroying itself. Pressure level inside the vacuum cleaner is lower than pressure of outside. Large battery unbalanced the elect1ic vacuum. It all depends on the battery. CONCLUSION