TY - CPAPER AU - Adriana Zamora AU - Sorina Stanila TI - THE INCREASE OF ENERGETIC EFFICIENCY OF SCREW COMPRESSORS USED FOR THE PRODUCTION OF COMPRESSED AIR INSIDE A COAL MINE T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining PY - 2017 SP - 885 EP - 892 DO - 10.5593/sgem2017/13/s03.112 PB - STEF92 Technology ER -