Superficial Gas Velocity Calculator

Superficial Gas Velocity Calculator:

Enter the values volumetric flow rate of the gas, Q_(m3/s) and cross-sectional area, A_(m2) to determine the value of superficial gas velocity, U_s(m/s).

Enter Volumetric Flow Rate of the Gas :		m3/s
Enter Ccross-Sectional Area :		m2
Result – Superficial Gas Velocity :		m/s

Superficial Gas Velocity Formula:

Superficial gas velocity is a measure used to describe the flow of gas through a given cross-sectional area, assuming the entire area is available for the flow, regardless of whether the flow channel is partially filled by other materials.

Superficial gas velocity, U_s(m/s) in metres per seconds is equated by dividing the volumetric flow rate of the gas, Q_(m3/s) in cubic metres per second by cross-sectional area, A_(m2) in square metres.

Superficial gas velocity, U_s(m/s) = Q_(m3/s) / A_(m2)

U_s(m/s) = superficial gas velocity in metres per seconds, m/s.

Q_(m3/s) = volumetric flow rate of the gas in cubic metres per second, m³/s.

A_(m2) = cross-sectional area in square metres, m².

Superficial Gas Velocity Calculation:

1.A pipe has a cross-sectional area of 0.05 m² and a volumetric flow rate of 0.1 m³/s.

Given: Q_(m3/s) = 0.1m³/s, A_(m2) = 0.05m².

Superficial gas velocity, U_s(m/s) = Q_(m3/s) / A_(m2)

U_s(m/s) = 0.1 / 0.05

U_s(m/s) = 2m/s.

2.A duct has a superficial gas velocity of 4m/s, and the volumetric flow rate of the air passing through it is 0.8 m³/s.

Given: U_s(m/s) = 4m/s, A_(m2) = 0.08m².

Superficial gas velocity, U_s(m/s) = Q_(m3/s) / A_(m2)

Q_(m3/s)  = U_s(m/s) * A_(m2)

Q_(m3/s)  = 4 * 0.08

Q_(m3/s)  = 0.2.