Air flow rate and manometer reading

6,239 views

Published on

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total views
6,239
On SlideShare
0
From Embeds
0
Number of Embeds
294
Actions
Shares
0
Downloads
0
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

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

×