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Jet Fan Calculator
Parking and tunnel jet fan thrust and ventilation calculation
Calculates the required number of jet fans, thrust force, and ventilation airflow in enclosed parking lots or tunnels. Compliant with NFPA 502 and BS 7346 standards.
Application Type
Select the space type
Space Information
Dimension and capacity values
m
m
m
Total number of parking spaces
vehicles
Vehicle movement during peak hour
vehicles/h
Layout Diagram
Calculation Results
Recommended jet fan configuration
Ventilation Metrics
Required Airflow
54,000m³/h
Air Change Rate
6ACH
Parking: 6-10 ACH recommended
Jet Fan Requirements
Total Thrust Force
27N
Jet Fan Count
2units
Placement Recommendations
Recommended Spacing:33.3 m
Mounting Height:2.5 m
Volume:9,000 m³
Thrust Per Fan:14 N
This calculator is intended for preliminary sizing. Consult an HVAC engineer for precise project calculations.
For your technical questions get in touch