Contents at a glance
This article explains when and why in-room humidification using high-pressure technology can help save energy compared to other humidification solutions.
Lower energy costs
Savings of over 90% are possible compared to other methods
Powerful and targeted
High humidification performance with lower power consumption
Additional cooling
Evaporative cooling reduces the costs of running the air conditioning system
Compare the energy costs of air humidification!
When comparing different humidification systems, energy costs must be taken into account alongside the purchase and maintenance costs.
From a physical point of view, the amount of energy required for the thermodynamic change in the state of the air, involving the phase change from water to vapour, is the same for all humidification processes. Depending on the application for which the humidity is required and whether additional heating is required or a cooling effect is desired, energy costs can vary significantly.
High-pressure nozzle systems with excellent energy efficiency
Cold-water air humidifiers, such as high-pressure nozzle systems, are characterised by particularly low primary energy consumption. The micro-fine atomisation with a droplet size of less than 15 μm is achieved by high-pressure technology, which forces the water through high-performance nozzles at an operating pressure of up to 85 bar. The energy consumption of the high-pressure pump is very low at 700 W. In addition, the adiabatic cooling effect of cold water evaporation ensures a pleasant indoor climate.
However, adiabatic air humidification shifts the energy requirement towards increased heating demand. This is required when unwanted energy is extracted from the ambient air in the form of heat (adiabatic cooling effect). For industrial applications with excess heat loads, adiabatic nozzle atomisation is often a suitable option for minimising energy costs. The same applies to office buildings that have excessively high room temperatures due to internal heat loads or structural features (e.g. glass façades).
For applications with excess external or internal heat loads, adiabatic high-pressure nozzle systems are a very economical solution due to the low energy consumption required to generate the spray mist. No additional energy requirement to compensate for the adiabatic cooling effect needs to be taken into account here.
Adiabatic cooling effect
In air humidification using high-pressure nozzles, cold water is sprayed directly into the room air without dripping. The use of this in-room air humidification can, with the appropriate technology and design, significantly reduce the costs of an air conditioning system or lower the room temperature independently of an existing air conditioning system. The principle of adiabatic evaporative cooling results in an exceptionally economical reduction in room temperature: 100 litres of water in a high-pressure nozzle humidification system absorb around 70 kW of heat whilst consuming only 0.7 kW of energy. This enables an average reduction in room temperature of between 2°C and 5°C.
Information package: In-room humidification
Always the right fit – find out more here!In-room humidifiers are used specifically where humidity is required. Suitable for every application and room size, ideal for retrofitting, energy-efficient and easy to maintain.
Request your free information package here and get a free thermo-hygrometer to measure your humidity!
DRAABE in-room humidification
Right in the room – 10 benefits
For every building and every room
Low-cost cooling
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