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Humidification
Whether it is a question of people feeling comfortable and staying
healthy in enclosed rooms; or high performance computers continuing
to function at their peak; rejected goods being kept at a minimum,
or fruit, vegetables and meat staying fresh in cold stores to
keep their appetizing appearance (colour, form etc.) the correct
level of humidity is crucial for an optimal room climate.
Experts agree that a minimum of 40% relative humidity is essential
in order to guarantee a room climate that is both healthy and
comfortable.
In order to create the optimal conditions for high-tech industrial
processes and for people’s health, sterile, odourless and
mineral free steam must be produced. All these requirements are
met with the steam humidifiers from Nordmann Engineering!
Isothermal and adiabatic humidification
The degree of moisture in the air can be increased using two
different types of procedures:
* through isothermal humidification (vaporization)
* through adiabatic humidification (atomisation)
During the isothermal humidification process, water is brought
to boiling point causing water vapour to be dispersed into the
air. To change the state of water, an external source of energy
is required. The temperature of the air is more likely to increase
due to the high temperature of the water vapour.
During the adiabatic humidification process the water is finely
atomised (aerosol) and mixes with the air. Through this process,
the temperature in the ambient air can decrease so much that it
is necessary for it to be reheated.
Electrode steam humidification
The heating system using electrodes came into use at the
beginning of the 20th Century in countries with advanced
electrification. At that time industrial water was brought
to around 70 degrees in large kettles using graphite electrodes.
In the sixties, electrode heating was further developed
for the purposes of steam generation. Electrode heating
is for evaporators in which the water is brought to boiling
point. The water itself plays the part of the heating resistance.
This guarantees an extremely effective transformation of
the electrical energy. Due to the high working temperature
a microbe-free steam of the highest quality is generated.
They can be used with normal tap water and do not need an
excessive amount of servicing. Due to the high steam temperature
of approx. 100°C all types of bacteria are destroyed
and the risk of microorganisms building up is eliminated.
The pure, hygienic humidification by using sterile steam
is isothermal. Using this process is more economical as
the room air is not cooled down, therefore eliminating the
necessity to reheat it. |
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Electrode
steam humidification manufacturer *Nordmann Engineering
Definition of Humidification
Terms
Calculation
of humidification load
Dehumidification
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