Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

Air flow rate and manometer reading

8,309 views

Published on

  • Be the first to comment

  • Be the first to like this

Air flow rate and manometer reading

  1. 1. Title: AIR FLOW RATE AND MANOMETER READINGBACKGROUND: Manometers: Pressure measuring devices using liquid columns in vertical or inclined tubes are called manometers. One of the most common is the water filled U-tube manometer used to measure pressure difference in pitot or orifices located in the airflow in air handling or ventilation system. h Vertical U-tube manometer: P = pressure difference γ = specific weight of fluid in the tube h = liquid height Inclined U-tube manometer: h 0
  2. 2. θ = angle of column relative to the horizontal planeVolume Flow Rate: Volume flow rate describes the volume of fluid which passes through a given surface per unit time. A = cross sectional area v = velocity of fluid Fluid velocity: P = pressure difference γ = specific weight of airAir flow bench: Schematic diagram of an air flow bench is shown below: OUT Motor Air duct IN Centrifugal fan Manometer
  3. 3. EQUIPMENTS: 1. Hand held anemometer 2. Air flow bench 3. CaliperThe air flow bench:Manometers:
  4. 4. Digital anemometer:References:www.engineeringtoolbox.com

×