Aeras handed over to the customer the second electrostatic precipitator after a general repair in December last year. The key part was to increase the efficiency of dust removal at the electric heating plant in Chorzow, Poland, on a 110 MW unit burning a mixture of biomass and coal. In addition to mechanical repair, the project also included the replacement of collecting and discharge systems on the first section and the delivery of a Coromax® pulse system to increase the efficiency of dust removal. We asked the head of implementation, Mr. Jakub Štech, how the project progressed and what the results were.
What are the results of the project with respect to the requirements and have the investor’s expectations been met?
The required guaranteed parameter for PM outlet was set at 11 mg/Nm3; now we reach an outlet of 4 mg/Nm3. The requirement was fulfilled and we even exceeded the investor’s expectations. These output parameters are not only the result of ESP short-term monitoring since its commissioning in the autumn of 2022, but above all, they are proven by the operation of the electrostatic precipitator on block I, which has been in operation since the autumn of 2021. Thus, for more than a year, we achieve lower outlets and save electrical energy to operate the equipment at the same time.
What was the most challenging part of the project?
Here I would divide the answer into I. and II. stage.
I. The stage took place during the period of covid and related measures, which required a number of administrative actions during the implementation of the international project. Furthermore, an unpredictable situation with a lack of overseas transport capacities during the delivery of the equipment from the production plant threatened the deadline for putting the equipment into operation.
In 2022, during the implementation of the second block, assembly work was carried out within a narrow space between the buildings, where we had to cooperate with another contractor as part of the general repair of block II.
Thanks to the professional cooperation of colleagues, our suppliers and the investor, it was possible to overcome all obstacles and successfully hand over both electrostatic precipitators into operation on time.
Is it possible to transfer these experiences to other projects?
You take away new experiences from every project implemented, and it was no different here. In addition, it was the first implementation abroad for Aeras, during which we established contacts with potential customers and began to cooperate with new suppliers.
How was the cooperation with ČEZ?
I rate the cooperation with CEZ Chorzow very positively, because during more than two years of cooperation we were able to find constructive solutions together in various situations and phases of the project.