The Fifth International Symposium on Mine Safety Science and Engineering (ISMSSE2021)

138 / 2021-10-05 17:05:59

Combating the climate hazard in the area of longwall panel 1/VIII/391 in the Stefanów Field – increasing the cooling capacity of central air conditioning by changing the refrigerant from ice water to binary ice.

ice-water,underground mining,cooling,binary ice

The main aim of the paper is to discuss the legitimacy of reducing the temperature of the cooling medium (water) for better air cooling efficiency in underground workings distant from the shaft. In order to reduce the temperature, a device for producing the "ice-water" mixture was built, thus lowering the temperature of the cooling medium to 0 ° C. As a result, we obtain a low temperature of the cooling water at the entrance to the air coolers in areas located several kilometers away from the shaft. In this way, we obtain better cooling efficiency and there is no longer need to subcool the medium in distant regions.