The JSW Group is a Polish leading company in the production of high quality coking coal in Europe and works in four pits, including the Borynia-Zofiówka-Jastrzębie coal mine.


The client’s requirement is to operate deeper and deeper and, therefore, to solve problems concerning the related increase of temperature. The most suitable solution is to develop a cooling system based on two circuits: an underground circuit and a surface system.


Geoclima has developed two GNH 1350 kW chillers with ammonia for the surface cooling station.
The system has been designed to chill 300 mc/h of water from 29 °C down to 1,5 °C.


The project has been able to satisfy the client’s specific requirements, demonstrating that Geoclima is able to provide suitable and customised solutions.