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Vacuum Cleaner. Presented by: Vinit Patel Alex Valdez. Major Physics behind the vacuum cleaner Bernoulli Effect Venturi Effect. Definitions . Vacuum - A space in which the pressure is significantly lower than atmospheric pressure.

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Presentation Transcript
vacuum cleaner

Vacuum Cleaner

Presented by:

Vinit Patel

Alex Valdez

slide2
Major Physics behind the vacuum cleaner
  • Bernoulli Effect
  • Venturi Effect
definitions
Definitions
  • 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.
what happens
What Happens
  • The fan decreases the pressure inside the hose of the vacuum, so air accelerates toward the inlet.
  • It also changes the potential energy of the air to kinetic energy.
the physics
The Physics
  • Bernoulli’s Principle – States that in fluid flow, an increase in velocity occurs simultaneously with decrease in pressure.
the physics6
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.

demonstrations
Demonstrations
  • http://home.earthlink.net/~mmc1919/venturi.html
  • Paper
  • Water
sources
Sources
  • home.earthlink.net/~mmc1919/venturi.html
  • howthingswork.virginia.edu/ supplements/vacuum_cleaners.pdf
  • en.wikipedia.org/wiki/Venturi_effect
  • en.wikipedia.org/wiki/Bernoulli's_principle