Polyhouse fan and evaporative pad cooling calculator.
Estimate airflow, pad face area and water flow from greenhouse dimensions and design assumptions.
Polyhouse fan and evaporative pad cooling inputs
Planning calculation only. Use calibrated EC/pH meters, water analysis, crop-specific recipes, product labels and qualified horticultural advice before dosing or changing a commercial growing system.
Method: The calculator applies the entered measurements and visible formula as a planning estimate.
Inputs used: Polyhouse length = 30 m; Polyhouse width = 8 m; Airflow target = 300 CFM/m²; Pad face velocity = 250 CFM/sq ft; Pad water rate = 5 LPM/sq ft
Assumptions: The result uses the values, units and options shown in the input snapshot.
Scope and warnings: Planning calculation only. Use calibrated EC/pH meters, water analysis, crop-specific recipes, product labels and qualified horticultural advice before dosing or changing a commercial growing system. Rounding and excluded real-world terms can make an external result differ.
How this polyhouse fan and evaporative pad cooling calculator works
The calculator applies the entered measurements and visible formula as a planning estimate.
A worked example
Use actual reservoir, growing-area, equipment or crop data to test a scenario.
Can this be used as a growing instruction?
No. Verify water, crop, equipment and local conditions with measured data and qualified horticultural advice.
Calculations run on your device. Review your results before exporting or sharing them.
Use equipment curves at design conditions
Airflow, pressure and pad performance must reflect the real greenhouse and selected hardware.
Cooling design requires redundancy, drainage, water quality and professional site review.
Published by ToolMitra — methods and editorial approach.