AQ Lasertool OÜ is a company belonging to the Swedish AQ Group, which has 5 factories in Estonia, two of which are located in Pärnu, two in Jüri and one in Viimsi.
There was a constant demand for heating in production and the compressor was running daily - the residual heat from the 55 kW unit was previously unused. Cost-benefit calculations showed that the heat transfer to the heating system of the building would provide a very fast return on investment, so it was decided to implement the solution.
We channel heat energy into both domestic hot water and heating water. All parameters are adjustable.
We installed an automatic heat control system in the oil cooling circuit of the compressor, which regulates the temperature of the oil and the domestic hot water by means of four sensors. The system optimises the heat exchange and prevents the compressor from overheating. A built-in heat meter accurately measures the energy returned. The system can be routed to both the domestic hot water and the building heating system.
The amount of energy recovered amounts to 10 MWh per month on average. Expect an even bigger result in the winter months, as the higher temperatures in the heating system allow more efficient heat transfer due to the small temperature difference. The projected annual residual heat input is more than 120 MWh, which means significant savings in heating costs and CO₂ reductions.
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Come and visit us at our Jüri office at Kesk tee 10, Jüri, Rae vald, Estonia
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