Condensation heat
The Energy transferred to the air
from the condenser consists of:
1. The amount of heat derived
beforehand in the evaporator.
2. The electrical drive energy.
3. The condensation heat released
by liquefying the water vapour.
Energy must be supplied when
liquid is converted into a gas.
This energy is designated as
evaporation heat.
It does not cause any increase in
temperature, but is required to
convert a liquid into a gas.
Conversely, energy is released
when gas is liquefied, this is
designated as condensation heat.
The amount of energy from
evaporation heat and condensation
heat is the same.
For water, this is:
2250 kJ/kg (4.18 kJ = 1kcal)
From this it is evident that the
condensation of water vapour
causes a large quantity of energy
to be released.
If the moisture that it is to be
condensed is not introduced by
evaporation in the room itself,
but from outside, e.g. through
ventilation, the condensation heat
released contributes to the heating
of the room.
When dehumidifying, a heat
cycle is created, whereby heat is
consumed for evaporation and
released for condensation.
When dehumidifying fed air,
a larger contribution of heat is
created, which manifests itself as
a temperature increase.
Generally speaking, the time
required for the drying process
is not only dependent on
the output of the unit, but is
determined to a greater extent by
the speed at which the material
or building section loses its
moisture.
Safety notes
The units have been subjected to
extensive material, functional and
quality inspections prior to delivery.
However, dangers can result
from the units if they are used
improperly or not as intended by
untrained personnel.
The following notes must be
observed in full:
■
The units may not be installed
or operated in explosive
environments
■
The units must not be installed
or operated in atmospheres
containing oil, sulphur or salt
■
The units must not be exposed
to direct jets of water
■
An unobstructed air inlet and
air outlet must be guaranteed
at all times
■
The air-inlet grill must always
be kept free of dirt and loose
objects
■
The units must not be covered
during operation
■
Never stick foreign objects into
the units
■
All electrical cables on the
outside of the units must be
protected against damage (e.g.
by animals etc.)
■
The units are only permitted
to be set up or installed in the
intended position (upright)
■
Unobstructed and frost-proof
condensate drainage must be
ensured at all times
■
The unit connections must
always be established
according to the applicable
installation regulations
CAUTION
The units must be set up and
installed in such a way that
they are easily accessible for
monitoring, repair and
maintenance work.
6
REMKO SLE 45-85
