Velocity Pressure in Ducts Calculator

✖Mean Velocity of Air is defined as the time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0.ⓘ Mean Velocity of Air [V_m]

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✖Velocity Pressure in Duct is the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream.ⓘ Velocity Pressure in Ducts [P_v]

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Velocity Pressure in Ducts Solution

STEP 0: Pre-Calculation Summary

Formula Used

Velocity Pressure in Duct = 0.6*Mean Velocity of Air^2
P_v = 0.6*V_m^2
This formula uses 2 Variables

Variables Used

Velocity Pressure in Duct - (Measured in Pascal) - Velocity Pressure in Duct is the pressure required to accelerate air from zero velocity to some velocity (V) and is proportional to the kinetic energy of the air stream.
Mean Velocity of Air - (Measured in Meter per Second) - Mean Velocity of Air is defined as the time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0.

STEP 1: Convert Input(s) to Base Unit

Mean Velocity of Air: 15 Meter per Second --> 15 Meter per Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

P_v = 0.6*V_m^2 --> 0.6*15^2

Evaluating ... ...

P_v = 135

STEP 3: Convert Result to Output's Unit

135 Pascal -->13.7614678899083 Millimeter Water (4 °C) (Check conversion here)

FINAL ANSWER

13.7614678899083 ≈ 13.76147 Millimeter Water (4 °C) <-- Velocity Pressure in Duct

(Calculation completed in 00.020 seconds)

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Created by Abhishek Dharmendra Bansile

Vishwakarma Institute of Information Technology, Pune (VIIT Pune), Pune

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< Parameters of Ducts Calculators

Equivalent Diameter of Circular Duct for Rectangular Duct when Quantity of Air is Same

LaTeX Go Equivalent Diameter of Duct = 1.256*((Longer Side^3*Shorter Side^3)/(Longer Side+Shorter Side))^0.2

Equivalent Diameter of Circular Duct for Rectangular Duct when Velocity of Air is Same

LaTeX Go Equivalent Diameter of Duct = (2*Longer Side*Shorter Side)/(Longer Side+Shorter Side)

Reynolds Number in Duct

LaTeX Go Reynolds Number = (Diameter of Circular Duct*Mean Velocity of Air)/Kinematic Viscosity

Reynolds Number given Friction Factor for Laminar Flow

LaTeX Go Reynolds Number = 64/Friction Factor in Duct

Velocity Pressure in Ducts Formula

LaTeX Go

Velocity Pressure in Duct = 0.6*Mean Velocity of Air^2
P_v = 0.6*V_m^2

Example of Velocity Pressure

When a fan is moving air through a duct system, two types of pressure are encountered: velocity pressure and static pressure. The sum of these pressures is referred to as total pressure. Velocity pressure is the pressure caused by air in motion. Units of pressure are expressed in mm of water. Velocity pressure can be calculated from the difference between the total pressure and static pressure.

How to Calculate Velocity Pressure in Ducts?

Velocity Pressure in Ducts calculator uses Velocity Pressure in Duct = 0.6*Mean Velocity of Air^2 to calculate the Velocity Pressure in Duct, Velocity Pressure in Ducts formula is defined as the pressure exerted by the flow of air or gas in a duct, which is a key factor in determining the performance of heating, ventilation, and air conditioning systems, as well as other industrial processes that involve airflow. Velocity Pressure in Duct is denoted by P_v symbol.

How to calculate Velocity Pressure in Ducts using this online calculator? To use this online calculator for Velocity Pressure in Ducts, enter Mean Velocity of Air (V_m) and hit the calculate button. Here is how the Velocity Pressure in Ducts calculation can be explained with given input values -> 1.4028 = 0.6*15^2.

FAQ

What is Velocity Pressure in Ducts?

Velocity Pressure in Ducts formula is defined as the pressure exerted by the flow of air or gas in a duct, which is a key factor in determining the performance of heating, ventilation, and air conditioning systems, as well as other industrial processes that involve airflow and is represented as P_v = 0.6*V_m^2 or Velocity Pressure in Duct = 0.6*Mean Velocity of Air^2. Mean Velocity of Air is defined as the time average of the velocity of a fluid at a fixed point, over a somewhat arbitrary time interval T counted from some fixed time t0.

How to calculate Velocity Pressure in Ducts?

Velocity Pressure in Ducts formula is defined as the pressure exerted by the flow of air or gas in a duct, which is a key factor in determining the performance of heating, ventilation, and air conditioning systems, as well as other industrial processes that involve airflow is calculated using Velocity Pressure in Duct = 0.6*Mean Velocity of Air^2. To calculate Velocity Pressure in Ducts, you need Mean Velocity of Air (V_m). With our tool, you need to enter the respective value for Mean Velocity of Air and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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