Adequate Airflow in Duct Design and Sizing

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Adequate Airflow

Adequate airflow ensures:



1.Proper ventilation: removing stale air and introducing fresh air

2.Temperature control: maintaining desired temperatures in each zone

3.Humidity control: managing humidity levels for comfort and health


Factors Affecting Airflow

1.Duct size and shape: larger ducts reduce pressure drops

2.Air velocity: optimal velocity balances noise and pressure drop

3.Fittings and connections: minimizing losses and turbulence

4.System balancing: ensuring airflow meets design requirements


Calculation Methods

1.CFM (Cubic Feet per Minute) calculations: determining airflow requirements

2.ASHRAE standards: guidelines for airflow rates and velocities

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