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Air Throw Calculator

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Input Parameters

Unit System

Imperial (°F, BTU, ft)SI (°C, kW, m)

Airflow (CFM)

Diffuser Size (in)

Initial Velocity (FPM)

Diffuser Type

Results

Air Throw Analysis

34

Throw Distance ft

3

Drop Distance ft

124

Terminal Velocity FPM

45

Spread Angle °

Calculation Steps

1

Calculate Throw Distance

Formula:

T = K \sqrt{Q} \times D

Calculation:

T = 1.50 \times \sqrt{500} \times 1.00

Result:

33.5 \text{ ft}

2

Calculate Drop Distance

Formula:

D_{drop} = 0.1 \times T

Calculation:

D_{drop} = 0.1 \times 33.5

Result:

3.4 \text{ ft}

3

Calculate Terminal Velocity

Formula:

V_t = V_0 e^{-T/(2D)}

Calculation:

V_t = 500 e^{-33.5/(2 \times 12.0)}

Result:

124 \text{ FPM}