Heat to Cooling Adsorption

Like in a refrigerator, cold is generated through evaporation of a liquid – in our case water. However unlike conventional refrigerators our machine consumes heat instead of electricity for driving the process. The following figure illustrates the principle:

Step1: Desorption
The adsorbent is dried by heat input. Water vapour is set free, flows in the condenser and is liquefied there under heat emission. The upper check valve closes.

Step 2: Adsorption
After a cool down phase water starts to evaporate. The lower check valve t the evaporator open and the fry adsorbent aspirates water vapour. Through the evaporation of water, cold is generated.

Step 3: Return of condensate
In a final step the condensate is returned to the evaporator and the circuit is closed.

In order to achieve a continuous cold production two absorbers work in combination i.e. one adsorber desorbs while the other adsorber generates cold by adsorbing in the meantime.

Source of heat supply

Different kinds of driving heat such as solar, district or any form of waste heat are equally suitable.

Areas of application

Air-conditioning of small and medium sized buildings is currently the area of application. The building is air-conditioned through a chilled water circuit. The advantage of such water circuits is a dual use for both heating and typically cooling purposes. Additionally, our technology is also suitable for commercial and industrial cooling.

For more information, see Sortech documentation



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