Ventilation Systems

Design of systems for ventilation and air handling - air change rates, ducts and pressure drops, charts and diagrams and more.

Design of systems for ventilation and air handling including:

Calculator

Room Volume (m³)

Air Changes Per Hour (ACH)

Duct Diameter (mm)

Air Velocity (m/s)

Volumetric Flow Rate-- m³/min

Duct Cross-sectional Area-- m²

Actual Air Velocity-- m/s

Parameter	Value	Unit	Standard Range
Room Volume	100	m³	50-500
Air Changes Per Hour	6	ACH	4-12
Duct Diameter	150	mm	100-400
Air Velocity	4	m/s	3-5
Volumetric Flow Rate	10	m³/min	5-50
Pressure Drop	12	Pa/m	10-20