I've been trying calculate the capacity of one of our dust collection systems. It features four vacuum slots lined up (27 inches by 1 inch each) shown as #3 on the diagram attached.(adsbygoogle = window.adsbygoogle || []).push({});

Using a manometer, I took pressure measurements at points #1 and #2. Both were around 1.1 inwc, which translates to about 4250 ft/min. The pipe diameter at #1 is one foot, the pipe diameter at #2 is 8 inches.

I am trying to calculate the suction velocity at a distance x from the vacuum heads. I've been trying to wrap my head around finding this value. I know that my flow rate is: Q = A*V, and that the capacity Q1 in the #1 pipe should be the summation of the capacity of the four openings.

Is velocity going to change as you decrease the cross sectional area of the pipe? According to my measurements, it looks like velocity is staying constant in all ducts. Then the question becomes, is the air velocity at point #1 equal to the velocity at the opening at #3? Or are you increasing the air suction in ft/min as you decrease the area of the opening?

I appreciate any help in advance, thanks.

**Physics Forums | Science Articles, Homework Help, Discussion**

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Suction velocity of different vacuum heads

Loading...

Similar Threads for Suction velocity different |
---|

Maximum suction force in a suction cup |

Determine the pressure gradient for suction |

Pump has a suction lift of more than 10.3 m |

Suction side and discharge side pump pressure |

Aerospace Calculating suction area around the intake of a jet engine |

**Physics Forums | Science Articles, Homework Help, Discussion**