Gas Turbine Inlet Air Fogging & Cooling Calculator
Determine compressor inlet temperature reduction via wet-bulb evaporative cooling or fogging, mass flow increase, and resulting power output gain.
Inlet Psychrometric Conditions
Cooled Inlet Air & Power Augmentation
Recommended Tools & Equipment
Tested hardware and components for high reliability
Inlet Fogging & Evaporative Augmentation
High-pressure inlet fogging systems atomize demineralized water at $100 - 200\text{ bar}$ through micro-nozzles located in the filter house bellmouth. The microscopic droplets ($10 - 20\text{ µm}$) flash evaporate instantly, extracting sensible heat from the airstream and cooling it down toward the ambient wet-bulb temperature.
Wet Compression / Overspray Benefits
In wet compression systems, a controlled excess of fog ($1\%$ to $2\%$ by mass of airflow) is intentionally carried past the compressor inlet guide vanes into the compressor stages. As air is compressed and heats up, these surplus droplets evaporate internally, providing inter-stage cooling that drastically reduces compressor power consumption and boosts net shaft output.