Adiabatic cooling contribution?

≈ 2,450 kJ/kg latent heat from air; ΔT ≈ Δw × 2.5. 30,000 m³/h × 6°C ≈ 60 kW chiller equivalent.

SKH is a high-pressure atomisation system with 20–100 kg/h capacity; it can serve up to 3 zones with in-duct or in-space installation and suits large, high-load halls. SKVF is a standalone evaporative cooler with an ECM fan and under 1.5 kW consumption; it delivers humidity and evaporative cooling directly into the space without ductwork.

RO systems typically use a few kWh per m³ of product water. Because the water volume needed for humidification is relatively small, RO energy is usually a minor share of total operating energy; the exact figure should come from the RO manufacturer.

On pure winter, yes (reheat load); the annual net balance depends on the climate profile, run-hours and energy prices.

Unsuitable applications?

Hospital OR, pharma cleanroom, museum collections, sensitive electronics manufacturing. Steam is preferred.

Free-cooling benefit?

In 100% OA mode, two jobs in one step. The saving depends on the site's run-hours and climate profile.

Wetted-media systems 30-80 Pa + about 5-15% fan load; high-pressure atomisation 10-30 Pa + 2-5%; ultrasonic 0. Must add in total balance.

Textile weaving, greenhouses, floor pre-cooling, free-cooling.

How do you decide between evaporative and steam?

The load profile and seasonal distribution, hygiene class and RH tolerance band, water quality, and the summer cooling gain / winter reheat are assessed together; the cost comparison uses the facility's energy prices. NKT provides technical support in equipment selection based on these data.

Technical Article34 min read

How Does Evaporative Humidification Affect Energy Consumption?

An electric steam system uses about 0.75 kWh/kg of electricity for steam; an adiabatic system uses electricity only for the pump/fan and takes the heat of evaporation (≈ 0.68 kWh/kg) from the air, which in winter is returned by reheat.

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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)ACH (Air Changes per Hour)Steam Humidification Adiabatic Humidification Maturation 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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Engineering Reference

What Is Adiabatic Humidification? How It Differs from Steam Humidification

Adiabatic humidification raises humidity by atomising water or evaporating it from a wetted surface, a practically constant-enthalpy (isenthalpic) process that cools by drawing heat from the air. Thermodynamic difference from steam, summer-winter energy balance, three technology families (SKH/SKV/SKVF) and application matching.

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Decision Guide

Steam Humidification or Adiabatic Humidification? Comparison Guide

Thermodynamic principles of the two humidification approaches (isothermal vs constant enthalpy), energy and hygiene comparison, control accuracy, free-cooling gain, 11-row comparison table, and Neptronic SKE4 + SKH + SKVF positioning.

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Technical Article

How Do High-Pressure Misting Systems Work?

High-pressure misting sprays water at 70 bar pump pressure as <20 µm droplets, an adiabatic technology. System components, droplet size, textile/print/greenhouse applications, and Neptronic SKH positioning.

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Share your process conditions and our engineering team will help you select the correct model, airflow and regeneration configuration.

How Does Evaporative Humidification Affect Energy Consumption?

Related Glossary Terms

Frequently Asked Questions

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What Is Adiabatic Humidification? How It Differs from Steam Humidification

Steam Humidification or Adiabatic Humidification? Comparison Guide

How Do High-Pressure Misting Systems Work?

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