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A rotary screw compressor converts 100 % of the drawn electrical energy into heat. Up to 96 % of this energy can be recovered.
The fully-enclosed design of modern rotary screw compressors makes them especially suitable for heat recovery. This fact applies to both fluid-injected as well as to oil-free compressors.
Your advantages :
Energy costs account for up to 80 percent of life-cycle costs. By using heat recovery, you can significantly lower these costs.
Heat recovery lowers the CO2 emissions of your organisation because you utilise energy more efficiently.
Hot air utilisation
Up to 96 % of the compressor's exhaust heat can be used as hot air for space or process heating purposes, for example.
To learn more about the huge savings that can be achieved using hot air heat recovery compared to fuel oil or natural gas, please refer to our Heat Recovery brochure which covers the subject in greater detail.
Moreover, with our heat recovery calculator, you can interactively calculate the usable heating energy volume of a rotary screw compressor. Click here to go to the calculator.
Heating service and process water
Using the warm cooling medium, you can heat water to 70 °C via a heat exchanger (higher temperatures upon request). You can recover up to 76 % of the heat energy. The heated water can then be used in production, in your heating system or as service water.
PTG plate heat exchanger system
Rotary screw compressors from the SM series (from 5.5 kW) upwards can be equipped with PTG systems. Depending on the size of the compressor system, the PTG heat exchanger is either integrated within the unit or is installed externally.
Fields of application
- Feeding central heating systems
- Laundry facilities
- Galvanising
- General process heat
- Washing water in the food industry
- Swimming pool heating
- Hot water for showers and washrooms
Tube-type heat exchanger
In water-cooled systems, integrated plate or tube-type heat exchangers are available, depending on the available water quality. Our compressed air specialists can advise you about which design is right for your particular application.
To learn more about the huge savings that can be achieved using water heating compared to fuel oil or natural gas, please refer to our Heat Recovery brochure which covers the subject in greater detail.
