Hey,
Can you give me the note on working of vacuum cleaner.
I need it for my tommorow's exhibition.
Answers
Answer:
plug it in the wall & power it on
Explanation:
Answer:
Explanation:
When you sip soda through a straw, you are utilizing the simplest of all suction mechanisms. Sucking the soda up causes a pressure drop between the bottom of the straw and the top of the straw. With greater fluid pressure at the bottom than the top, the soda is pushed up to your mouth.
This is the same basic mechanism at work in a vacuum cleaner, though the execution is a bit more complicated. In this article, we'll look inside a vacuum cleaner to find out how it puts suction to work when cleaning up the dust and debris in your house. As we'll see, the standard vacuum cleaner design is exceedingly simple, but it relies on a host of physical principles to clean effectively.
It may look like a complicated machine, but the conventional vacuum cleaner is actually made up of only six essential components:
An intake port, which may include a variety of cleaning accessories
An exhaust port
An electric motor
A fan
A porous bag
A housing that contains all the other components
When you plug the vacuum cleaner in and turn it on, this is what happens:
The electric current operates the motor. The motor is attached to the fan, which has angled blades (like an airplane propeller).
As the fan blades turn, they force air forward, toward the exhaust port (check out How Airplanes Work to find out what causes this).
When air particles are driven forward, the density of particles (and therefore the air pressure) increases in front of the fan and decreases behind the fan.
This pressure drop behind the fan is just like the pressure drop in the straw when you sip from your drink. The pressure level in the area behind the fan drops below the pressure level outside the vacuum cleaner (the ambient air pressure). This creates suction, a partial vacuum, inside the vacuum cleaner. The ambient air pushes itself into the vacuum cleaner through the intake port because the air pressure inside the vacuum cleaner is lower than the pressure outside.
As long as the fan is running and the passageway through the vacuum cleaner remains open, there is a constant stream of air moving through the intake port and out the exhaust port. But how does a flowing stream of air collect the dirt and debris from your carpet? The key principle is friction.
If you want it in a brief way:
Vacuum cleaners work by using a fan to generate suction to suck up dirt from carpets, floors and other surfaces. They're called vacuum cleaners because they create a space devoid of air, or a vacuum, kinda like outer space or packaged cheese. There are direct air vacuums, clean air vacuums and tandem air vacuums.
Direct air vacuums, also known as dirty air vacuums, are designed where dirt passes through the fan before being blown into the bag or dirt cup. These vacuums are more vulnerable to having their fans damaged by foreign objects such as a penny, a decent size pebble, a metal nut or bolt, but they usually have excellent airflow so they deep clean carpets very well, but are usually not so good at above floor cleaning (using a hose and attachments). The first household vacuum cleaner invented by Murray Spangler used a direct air design. Notable examples: Kirby, Sanitaire, Oreck, Eureka F&G uprights, and Hoover Elites are just a few.
Clean air vacuums, or motor bypass vacuums, have dirt go into the bag or dirt cup directly instead of having to go through the suction fan. This makes them very reliable, because if you accidentally pick up a penny for example, it will most likely just be sucked up into the bag or cup, with no damage. They are very good at above floor cleaning and can generally clean carpets well, as well as have good air filtration. Some models even have a separate motor for the brushroll. Most vacuums you see today use a clean air design. The first clean air vacuum was the Hoover Dial-A-Matic.
Tandem air vacuums use both a clean air motor as well as a direct air motor to excel at carpet cleaning, floor cleaning and above floor cleaning. Like direct air vacuums, the suction fan on a direct air motor can be damaged if you pick up a foreign object, but if you use the hose which uses the clean air motor, it won't be harmed. Riccar and Simplicity, both owned by the Tacomy company, manufacture Tandem Air vacuums.
I hope this helped answer your question.