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existing duct = velometer (Google velometer). Calculate velocity if volume is known and the size of duct volume (cubic feet) multiplied, square feet feet of duct, IE. 1000 cubic foot of air * 12" x12"
square duct = 1000 cubic feet * 1sq. foot = 1000 feet per minute
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∙ 14y ago
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What is measure of velocity?
It is a measure of speed in a specific direction
What is needed to measure velocity of an object?
In order to measure velocity you need displacement (a start location and an end location) and time.
What is the difference between HVAC diffuser's neck velocity and face velocity?
In HVAC terminology, a diffuser's neck velocity is defined as the velocity of air traveling through the duct work to the air outlet or inlet. The difference of the face velocity is this is a measurement of fume hood performance.
What is a synonym for velocity?
There is no synonym to velocity. there is no directionality in velocity. speed is a measure of rotation around a center expressed in revolutions per unit of time. Velocity is a measure of distance in units of time with no direction. Vectors indicate direction.
How fast does air with a velocity pressure of 0.20 in w.g. move through a round duct?
1800 ft min
Why the return duct of AHU is larger than supply duct?
The air is returning at a lower velocity, so you need a larger size duct.
How do you work out duct diametre?
For round duct, measure from one side to the other, and you have the diameter.
What is the airflow velocity within a branch duct if the flow rate is 175 cfm and the duct is 12 inches high by 18 inches wide?
answer is
How to calculate duct area?
To calculate duct area, multiply the width of the duct by the height of the duct. This gives you the area in inches or centimeters, depending on the unit of measure used for the calculation.
What is measure of velocity?
It is a measure of speed in a specific direction
Momentum is the measure of?
velocity
What does a velometer measure?
Air velocity in ventilation systems
What is needed to measure velocity of an object?
In order to measure velocity you need displacement (a start location and an end location) and time.
What is Revolutions per minute in CNC?
are a measure of angular velocity whereas metres per minute are a measure of linear velocity.
What is the difference between HVAC diffuser's neck velocity and face velocity?
In HVAC terminology, a diffuser's neck velocity is defined as the velocity of air traveling through the duct work to the air outlet or inlet. The difference of the face velocity is this is a measurement of fume hood performance.
Why do you had to calculate acceleration with velocity?
Because acceleration is the rate of change of velocity: it is a measure of how quickly velocity is changing.
How do you measure Velocity-?
velocity = distance travelled/time taken to travel that distance
