Pressure Drop in Circular Duct Calculator

✖Friction Factor in Duct is dimensionless number depending upon the surface of the duct.ⓘ Friction Factor in Duct [f]			+10% -10%
✖Length of Duct is defined as the measurement or extent of something from end to end of ducts.ⓘ Length of Duct [L]			+10% -10%
✖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]			+10% -10%
✖Diameter of Circular Duct is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.ⓘ Diameter of Circular Duct [d]			+10% -10%

✖Pressure Drop in Circular Duct due to friction is the decrease in the value of the pressure due to the influence of friction.ⓘ Pressure Drop in Circular Duct [ΔP_c]

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Pressure Drop in Circular Duct Solution

STEP 0: Pre-Calculation Summary

Formula Used

Pressure Drop in Circular Duct = (0.6*Friction Factor in Duct*Length of Duct*Mean Velocity of Air^2)/(Diameter of Circular Duct/4)
ΔP_c = (0.6*f*L*V_m^2)/(d/4)
This formula uses 5 Variables

Variables Used

Pressure Drop in Circular Duct - (Measured in Pascal) - Pressure Drop in Circular Duct due to friction is the decrease in the value of the pressure due to the influence of friction.
Friction Factor in Duct - Friction Factor in Duct is dimensionless number depending upon the surface of the duct.
Length of Duct - (Measured in Meter) - Length of Duct is defined as the measurement or extent of something from end to end of ducts.
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.
Diameter of Circular Duct - (Measured in Meter) - Diameter of Circular Duct is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

STEP 1: Convert Input(s) to Base Unit

Friction Factor in Duct: 0.8 --> No Conversion Required
Length of Duct: 0.0654 Meter --> 0.0654 Meter No Conversion Required
Mean Velocity of Air: 15 Meter per Second --> 15 Meter per Second No Conversion Required
Diameter of Circular Duct: 533.334 Meter --> 533.334 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

ΔP_c = (0.6*f*L*V_m^2)/(d/4) --> (0.6*0.8*0.0654*15^2)/(533.334/4)

Evaluating ... ...

ΔP_c = 0.0529739337825828

STEP 3: Convert Result to Output's Unit

0.0529739337825828 Pascal -->0.00539999325000844 Millimeter Water (4 °C) (Check conversion here)

FINAL ANSWER

0.00539999325000844 ≈ 0.0054 Millimeter Water (4 °C) <-- Pressure Drop in Circular Duct

(Calculation completed in 00.004 seconds)

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Created by Abhishek Dharmendra Bansile

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

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< Pressure Calculators

Dynamic Loss Coefficient given Equivalent Additional Length

LaTeX Go Dynamic Loss Coefficient = (Friction Factor in Duct*Equivalent Additional Length)/Hydraulic Mean Depth

Pressure Loss due to Sudden Enlargement

LaTeX Go Pressure Loss due to Sudden Enlargement = 0.6*(Velocity of Air at Section 1-Velocity of Air at Section 2)^2

Dynamic Loss Coefficient given Dynamic Pressure Loss

LaTeX Go Dynamic Loss Coefficient = Dynamic Pressure Loss/(0.6*Velocity of Air^2)

Dynamic Pressure Loss

LaTeX Go Dynamic Pressure Loss = Dynamic Loss Coefficient*0.6*Velocity of Air^2

Pressure Drop in Circular Duct Formula

LaTeX Go

Pressure Drop in Circular Duct = (0.6*Friction Factor in Duct*Length of Duct*Mean Velocity of Air^2)/(Diameter of Circular Duct/4)
ΔP_c = (0.6*f*L*V_m^2)/(d/4)

Pressure drop in ducts

Pressure loss in ductwork has three components, frictional losses along duct walls and dynamic losses in fittings, and component losses in duct-mounted equipment. Due to physical items with known pressure drops, such as hoods, filters, louvers, or dampers.

How to Calculate Pressure Drop in Circular Duct?

Pressure Drop in Circular Duct calculator uses Pressure Drop in Circular Duct = (0.6*Friction Factor in Duct*Length of Duct*Mean Velocity of Air^2)/(Diameter of Circular Duct/4) to calculate the Pressure Drop in Circular Duct, Pressure Drop in Circular Duct formula is defined as the loss of pressure that occurs when a fluid flows through a circular duct, resulting from the frictional forces that resist the flow, and is a critical parameter in the design and operation of piping systems. Pressure Drop in Circular Duct is denoted by ΔP_c symbol.

How to calculate Pressure Drop in Circular Duct using this online calculator? To use this online calculator for Pressure Drop in Circular Duct, enter Friction Factor in Duct (f), Length of Duct (L), Mean Velocity of Air (V_m) & Diameter of Circular Duct (d) and hit the calculate button. Here is how the Pressure Drop in Circular Duct calculation can be explained with given input values -> 0.00055 = (0.6*0.8*0.0654*15^2)/(533.334/4).

FAQ

What is Pressure Drop in Circular Duct?

Pressure Drop in Circular Duct formula is defined as the loss of pressure that occurs when a fluid flows through a circular duct, resulting from the frictional forces that resist the flow, and is a critical parameter in the design and operation of piping systems and is represented as ΔP_c = (0.6*f*L*V_m^2)/(d/4) or Pressure Drop in Circular Duct = (0.6*Friction Factor in Duct*Length of Duct*Mean Velocity of Air^2)/(Diameter of Circular Duct/4). Friction Factor in Duct is dimensionless number depending upon the surface of the duct, Length of Duct is defined as the measurement or extent of something from end to end of ducts, 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 & Diameter of Circular Duct is a straight line passing from side to side through the center of a body or figure, especially a circle or sphere.

How to calculate Pressure Drop in Circular Duct?

Pressure Drop in Circular Duct formula is defined as the loss of pressure that occurs when a fluid flows through a circular duct, resulting from the frictional forces that resist the flow, and is a critical parameter in the design and operation of piping systems is calculated using Pressure Drop in Circular Duct = (0.6*Friction Factor in Duct*Length of Duct*Mean Velocity of Air^2)/(Diameter of Circular Duct/4). To calculate Pressure Drop in Circular Duct, you need Friction Factor in Duct (f), Length of Duct (L), Mean Velocity of Air (V_m) & Diameter of Circular Duct (d). With our tool, you need to enter the respective value for Friction Factor in Duct, Length of Duct, Mean Velocity of Air & Diameter of Circular Duct 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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