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To calculate air velocity in a pipe, you would need to measure either the volumetric flow rate or the mass flow rate of air flowing through the pipe. You can then use the formula: air velocity = volumetric flow rate / cross-sectional area of the pipe, or air velocity = mass flow rate / (density of air * cross-sectional area of the pipe).
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How do you calculate velocity of air in a mine?
To calculate the velocity of air in a mine, you can use a device called an anemometer. An anemometer measures the flow and speed of air, providing you with the velocity information. Simply place the anemometer in the air flow in the mine and it will give you a reading of the velocity.
Why does air escaping from the open end of small pipe make a lot more noise than air escaping at the same volume rate from a large pipe?
Air escaping from a small pipe produces more noise because it is being forced through a smaller opening, creating a higher velocity and turbulence in the airflow. This turbulence causes vibrations in the surrounding air, which we perceive as noise. In contrast, air escaping from a large pipe has more space to flow through, reducing the turbulence and noise generated.
How fast does air with a velocity pressure of 0.20 in w.g. move through square duct?
The velocity pressure can be used to calculate the velocity of air in the duct using the formula: velocity = √(2 * pressure / air density). Assuming standard air density and converting 0.20 in w.g. to the appropriate pressure unit, the velocity of air in the duct would be approximately 903 ft/min.
In a pneumatic line how does the layer of air next to the surface of the pipe move when compared to the other layers?
In a pneumatic line, the layer of air closest to the surface of the pipe moves more slowly compared to the other layers due to the effect of friction between the air and the pipe's surface. This phenomenon is known as the "no-slip condition" and causes a velocity gradient in the air flow profile across the pipe diameter.
How do you calculate air nozzle velocity?
Air nozzle velocity can be calculated using the formula v = sqrt((2 * P) / ρ), where v is the velocity in meters per second, P is the pressure in pascals, and ρ is the air density in kilograms per cubic meter. Simply input the values of pressure and air density into the formula to determine the air nozzle velocity.
How do you calculate velocity of air in a mine?
To calculate the velocity of air in a mine, you can use a device called an anemometer. An anemometer measures the flow and speed of air, providing you with the velocity information. Simply place the anemometer in the air flow in the mine and it will give you a reading of the velocity.
Basic mass air flow calculation in pipe?
Mass flow in air can be calculated if you know the pressure drop across the pipe. Then it can be calculated using Darcy's Equation for Pressure,which is: P2-P1 = (4fLv*v)/d*2*g where, P2 & P1 are pressures at two points in pipe, f = friction factor, L= length of pipe, v = velocity of fluid, d = diameter of pipe, g = gravity. from this formula we can calculate the velocity and hence the flow rate.
Can you calculate water velocity in pipe if just know head pipe diameter and pipe length?
Yes, it is actually one of the questions on a master plumbers exam
What is critical velocity in fluid dynamics?
Critical velocity is that The Liquid Air flow in narrow pipe constatly.
Why does the pipe of paper squeezes when air is blown through it?
When air is blown through a pipe of paper, the increased air pressure inside the pipe builds up, causing the paper to bend and squeeze. This is due to the difference in pressure between the air inside the pipe and the air outside. The paper bends to release this pressure and equalize it with the outside air.
Can you calculate pipe diameter if you have pressure head and discharge flow?
Static pressure is .434 X height Example 10 ft x .434 4.34 PSI to prove take 2.31 PSI x 4.34 To find FORCE to need to calculate the diameter of the piping and the height and then the weight of the water inside the pipe
Why does air escaping from the open end of small pipe make a lot more noise than air escaping at the same volume rate from a large pipe?
Air escaping from a small pipe produces more noise because it is being forced through a smaller opening, creating a higher velocity and turbulence in the airflow. This turbulence causes vibrations in the surrounding air, which we perceive as noise. In contrast, air escaping from a large pipe has more space to flow through, reducing the turbulence and noise generated.
How fast does air with a velocity pressure of 0.20 in w.g. move through square duct?
The velocity pressure can be used to calculate the velocity of air in the duct using the formula: velocity = √(2 * pressure / air density). Assuming standard air density and converting 0.20 in w.g. to the appropriate pressure unit, the velocity of air in the duct would be approximately 903 ft/min.
In a pneumatic line how does the layer of air next to the surface of the pipe move when compared to the other layers?
In a pneumatic line, the layer of air closest to the surface of the pipe moves more slowly compared to the other layers due to the effect of friction between the air and the pipe's surface. This phenomenon is known as the "no-slip condition" and causes a velocity gradient in the air flow profile across the pipe diameter.
How do you calculate air nozzle velocity?
Air nozzle velocity can be calculated using the formula v = sqrt((2 * P) / ρ), where v is the velocity in meters per second, P is the pressure in pascals, and ρ is the air density in kilograms per cubic meter. Simply input the values of pressure and air density into the formula to determine the air nozzle velocity.
With 4 inch pipe and a velocity of 5 feet per second what would that be in pounds per square inch?
To calculate pressure in pounds per square inch (psi) for a fluid flowing through a pipe, you need the fluid's density. Without knowing the density, we cannot directly determine the pressure using just the pipe size and velocity. The pressure would depend on the specific fluid being transported in the pipe.
Velocity of a fluid particle at centre of pipe is?
The velocity of a fluid particle at the center of a pipe in a fully developed flow is half of the maximum velocity in the pipe. This is known as the Hagen-Poiseuille flow profile for laminar flow.
