Water chiller
A water chiller or water chiller , even chiller , water-chiller or process-cooler , called a is device that (mostly water) down cooled via a cooling circuit is a liquid up to 6-7 ° C and thus, for example, large warehouses cooled. The water can also be enriched with additives that lower the freezing point even further.
Function and structure
The water chiller consists of a refrigeration machine with a condenser cooled by a fan and an evaporator in the cooling water circuit. The cooling water circuit is often in countercurrent to the evaporator and hydraulically separated from the cooling circuit by a heat exchanger. The cooling water circuit has a circulation pump.
For example, heat is transported from a lower temperature level (water return temperature) to a higher temperature level (ambient air).
It is controlled by a controller that thermostats the temperature of the water circuit. The refrigeration machine is switched on and off for control purposes.
There are also chillers with latency heat storage , e.g. By S.
application
The advantage of chillers is that they can provide a cooling water connection on site without having to use a central cooling water circuit or tap water.
Chillers are used for water-cooled machines and devices. Tight control tolerances are possible, but often not necessary. Applications are also in medical technology ( magnetic resonance and computed tomography ).
In industry, for example, heat loads arise on machine tools in production engineering .
Web links
- www.luftking.de: Chiller: Test & Recommendations. Kaufberaterio Media LLC, 2020. Retrieved March 18, 2020.