7-15× less electricity. Steam 750 W/kg, HP atomisation 50-100 W/kg, wetted media 25-50 W/kg.

Adiabatic cooling contribution?

2,260 kJ/kg latent heat from air; ΔT ≈ Δw × 2.5. 30,000 m³/h × 6°C ≈ 60 kW chiller equivalent.

SKH 50-100 W/kg + flexible placement; SKVF 25-50 W/kg + in-AHU. Hybrid is common optimum.

1-3 kWh/m³. 100 kg/h × 3,000 h ≈ 600 kWh/year, 4% of main unit.

On pure winter, yes (reheat load); but annual net still favours evaporative.

Unsuitable applications?

Hospital OR, pharma cleanroom, museum collections, ISO 5/6 electronics. Steam required.

Free-cooling benefit?

In 100% OA mode, two jobs in one step. 50-200 MWh annual extra saving.

SKVF 30-80 Pa + 5-15% fan load; SKH 10-30 Pa + 2-5%; ultrasonic 0. Must add in total balance.

100-1,000+ kg/h textile weaving, greenhouses, floor pre-cooling, free-cooling. Hybrid with SKH common.

NKT decision process?

Four stages: site analysis + water sample + comparative energy report + device recommendation (10-year TCO).

Technical Article33 min read

How Does Evaporative Humidification Affect Energy Consumption?

Evaporative humidification consumes ≈ 7-15× less electricity per kg of moisture; adiabatic-cooling side benefit reduces summer chiller load.

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Related Glossary Terms

For deeper definitions of the technical concepts in this article, browse the related entries in the NKT Glossary:

Relative Humidity (RH)Absolute Humidity Dew Point Psychrometric Chart Enthalpy Sensible Heat Latent Heat Cleanroom HVAC (Heating, Ventilation & Air Conditioning)GMP (Good Manufacturing Practice)CAPEX (Capital Expenditure)OPEX (Operational Expenditure)TCO (Total Cost of Ownership)ASHRAE (American Society of Heating, Refrigerating and AC Engineers)ACH (Air Changes per Hour)Steam Humidification Adiabatic Humidification Electrical Conductivity (μS/cm)Reverse Osmosis (RO/DI) Water Outdoor / Fresh Air Humidification Capacity (kg/h)Evaporative Humidification High-Pressure Misting Nozzle (Atomisation Orifice)Droplet Size Evaporative Cooling (Adiabatic Cooling)Legionella (Legionella pneumophila)Filtration (Water Filtration)Biofilm Water Treatment

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How Does Evaporative Humidification Affect Energy Consumption?

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