The adsorption principle of the TTR air dehumidifier
3-phase alternating curent units
(3 x 400 V) Fig. 2: Functioning plan
Single phase alternating current units
(230 V)
Silica gel is used as an adsorption agent in the dehumidifiers in the TTR Series.
The chemical stability of silica gel guarantees that water vapour or clear water cannot damage or destroy the rotor. Minor cases of pollution (e.g. dust) only lead to a loss in dehumidification performance.
The highly-active silica gel is applied in honeycomb form to an anorganic fleece, the drying wheel.
The porous structure of the drying wheel provides an extraordinarily large area covering approx. 2,000 m² per cubic meter of drying wheel volume for the deposit of moisture in the rotor.
The drying wheel is divided by appropriate sealing systems into a dehumidification sector (1) and a regeneration sector (2).
The continuous revolutions of the wheel allow the sorption agent to spread through both sectors evenly.
The rotation allows adsorption and regeneration to occur in a continuous cycle, so that the air is dehumidified continuously. There is no wear or tear of the sorption material.
When the suctioned-in, moist air streams through the dehumidification sector, the moisture is bonded by the sorption agent so that only dry air leaves the rotor.
At the same time the regeneration air floods the so-called purging sector (3) in order to recycle the heat and leaves the rotor as preheated air, which is then heated up to the required temperature by the built-in heating before passing through the regeneration sector and absorbing the moisture which has been bonded in the sorption material.
The process and regeneration air are channelled differently depending on the type of construction concerned:
Units with 3-phase alternating current have a separate air intake – both air streams are fully separated from each other from the moment the air is drawn in to the unit to the moment it is discharged (see figure 1).
The TTR single-phase models suction in the air centrally and then channel it into process and regeneration air streams before these enter the rotor (see figure 2).