The high-pressure gaseous refrigerant is led into the condenser, where it releases
its heat energy into the water that circulates between the ChillHeat pump and the
heat sink. As the refrigerant releases its heat energy and its temperature drops, it
condenses to liquid form again.
The liquid refrigerant is then led into an expansion valve, where the pressure and
temperature are lowered further. The refrigerant completes its circuit by returning back
to the evaporator, where it receives heat energy from the cooling circuit.
5.3 Heating and cooling
A single ChillHeat heat pump can be used for both heating and cooling at the same
time, without any extra machinery involved. When using the heat pump to cool down
one part of a process, heat is generated as a by-product. The generated heat can
be used effectively in another process which requires heat. The typical coefficient of
performance (COP) in these applications can vary between 5 and 8.
Example of a combined solution
An example of a combined solution is a data center. A data center usually consists
of an office area and a large server room. The server room requires powerful air
conditioning to keep the temperature down at an acceptable level.
At the same time, especially in countries with colder climate, the office area of the data
center requires heating. Both of these – air conditioning and heating – can be handled
with one ChillHeat unit. In the following figure, a single ChillHeat unit is used to produce
cold water used in air conditioning while at the same time the unit produces hot water
used for heating the office area.
Heating and cooling ver. 1
34 (63)
CHS01 1951EN
