Air Mixing Calculator

Input Parameters

Imperial (°F, BTU, ft)SI (°C, kW, m)

Supply Airflow (CFM)

Supply Temperature (°F)

Return Airflow (CFM)

Return Temperature (°F)

Mixed Air Temperature °F

1,200

Mixed Airflow CFM

Formula:

Q_{mixed} = Q_{supply} + Q_{return}

Calculation:

Q_{mixed} = 1000 + 200

Result:

1200 \text{ CFM}

Formula:

T_{mixed} = \frac{Q_{supply} T_{supply} + Q_{return} T_{return}}{Q_{mixed}}

Calculation:

T_{mixed} = \frac{1000 \times 55.0 + 200 \times 75.0}{1200}

Result:

58.3 \text{ °F}