Condensation of water
vapour
Since the maximum water vapour
volume increases when the air is
heated, however the contained
water vapour volume remains the
same, this results in a reduction of
the relative humidity.
In contrast, when the air is
cooled, the capacity to absorb the
maximum water vapour volume
reduces, the water vapour volume
contained in the air remains the
same and the relative humidity
increases.
If the temperature falls further, the
capacity to absorb the maximum
water vapour volume is reduced
until it is equal to the contained
water vapour volume.
This temperature is called dew-
point temperature. When the air
is cooled below the dew-point
temperature, the contained water
vapour volume is larger than the
maximum possible water vapour
volume.
Water vapour is discharged.
This condenses to water. The air is
relieved of moisture.
Examples of condensing are misted
windows in winter or misting of a
cold drinks bottle.
The higher the relative humidity,
the higher the dew-point
temperature, which is easier to fall
below.
Building materials or structures
can absorb substantial amounts
of water, e.g. bricks 90-190 l/
m³, heavy concrete 140-190 l/m³,
lime-sand bricks 180-270 l/m³.
The drying out of moist materials,
e.g. masonry, takes place as
follows:
■
The contained
moisture moves
from the inside of
the material to its
surface
■
Evaporation takes place on the
surface = transition as water
vapour to the ambient air
Temp.
Water vapour content in g/m
3
at a humidity of
°C
40%
60%
80%
100%
-5
1.3
1.9
2.6
3.3
+10
3.8
5.6
7.5
9.4
+15
5.1
7.7
10.2
12.8
+20
6.9
10.4
13.8
17.3
+25
9.2
13.8
18.4
23.0
+30
12.9
18.2
24.3
30.3
■
The air enriched with
water vapour continuously
circulates through the REMKO
dehumidifier. It is dehumidified
and leaves the unit at a slightly
higher temperature to absorb
water vapour from anew
■
In this way, the moisture
contained in the material is
gradually reduced
The material dries!
The produced condensate
is collected in the unit and
discharged.
Verdampfer
Kondensator
°C
30
25
20
15
% r.F.
100
90
80
70
60
50
40
30
20
10
+
+
-
Lufttemperatur
Luftfeuchte
Verlauf
Luftrichtung
The air flow is cooled on its way through or via the evaporator to
below the dew point. The water vapour condenses and is collected
in a condensate trap and discharged.
Drying materials
5
Содержание SLE 20
Страница 1: ...Edition GB T03 REMKO SLE 20 Swimming pool dehumidifier Operation Technology Spare parts...
Страница 2: ......
