EnFluidPro
Ventilation Calculator
Inputs
Room Dimensions
Transformer Data
Other Gains & Design Conditions
Louver Selection
Results
Total Exhaust Fan Capacity
—
m³/h
Fan Selection for Printout
Rule of thumb check: oil filled transformers indoors typically need roughly 3 to 4 m³/min per kW of loss. Verify against the vendor's installation manual and IEC 60076 guidance.
Inputs
Room Dimensions
Generator Data
Ducted radiator: fan air passes through the room and out the duct. Room ventilation then handles radiated heat + combustion air makeup only.
Other Gains & Design Conditions
Louver Selection
Results
Total Exhaust Fan Capacity
—
m³/h
Fan Selection for Printout
Supply louver must pass cooling air plus combustion air. When the radiator is ducted out, the radiator fan itself drives the main airflow; size the inlet louver for radiator airflow + combustion air at max 5 m/s face velocity. Always confirm against the genset manufacturer's installation data.
Inputs
Room Dimensions
Equipment Heat Dissipation
Building Gains & Design Conditions
Louver Selection
Results
Total Exhaust Fan Capacity
—
m³/h
Fan Selection for Printout
Arrange a low level filtered intake louver and a high level exhaust fan on the opposite wall so air sweeps across the panels. If inlet air temperature leaves less than 5 K of ΔT against the switchgear rating, use mechanical cooling instead of ventilation.
Inputs
Area & Dimensions
Production & Evaporation
Air Conditions
Sensible Heat Gains
Design Basis
Louver Selection
Air Conditioning (Optional)
Results
Total Exhaust Fan Capacity
—
m³/h
Fan Selection for Printout
Moisture balance basis: air mass flow = water evaporated into the hall ÷ (exhaust humidity ratio − supply humidity ratio). Keep the hall dew point at least 3 K below the coldest surface, otherwise condensate drips onto the sheet and causes breaks. Extract at high level above the machine, supply low level at the wet end, and hold the hall slightly negative to adjacent dry areas so moisture and lint do not migrate. Yankee hood supply and exhaust is a separate vendor system; this calculation covers the balance escaping into the hall.