LEIPOLE · ENGINEERING TOOLS
Cabinet cooling fan
airflow calculator.
Size a cabinet cooling fan around your enclosure, heat load and operating temperatures. Explore the airflow path, then compare LEIPOLE filter fans and axial fans.
Reference-based product illustration. Airflow is not a CFD simulation or an IP-rating assessment.
REQUIRED AIRFLOW
107 CFM · display conversion
- Effective area
- 5.71 m²
- Target − ambient
- 5.0 °C
- Material U-value
- 5.50 W/m²K
Calculation method & assumptions
Effective area follows the selected arrangement A–F. Natural heat dissipation = U × effective area × (target − ambient), when that difference is positive. Required fan cooling = total internal heat − natural heat dissipation, with a minimum of zero.
Airflow (m³/h) = required fan cooling (W) × 3.1 ÷ effective temperature difference (°C). The existing method uses a 1 °C minimum difference when heat remains to be removed, and rounds the combined component losses to whole watts before calculating. Current inside temperature is used only to display the current temperature difference and requested reduction.
A result at or below ambient does not make fan cooling feasible. This method does not include solar gain, altitude, pressure losses or a safety factor. Confirm installed airflow, supply voltage, frequency, outlet filter, cut-out and operating limits against the selected model’s current datasheet. Placement labels A–F determine area; the previous display-only placement coefficients do not enter the formula.
FROM AIRFLOW TO A PRODUCT
Your cabinet cooling fan shortlist
Filter-fan candidates use the existing selector’s effective-airflow data. Confirm the exact fan and outlet-filter combination.
Ready to specify your cabinet cooling fan?
Send your saved inputs, supply voltage, enclosure rating and installation constraints to the LEIPOLE team for model confirmation.