1. Institute of Energy Saving and Energy Management , National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” 37 Peremohy Ave., Kyiv , 03056 , Ukraine
2. Taurida National V.I. Vernadsky University 33 Ivana Kudri Str., Kyiv , 04000 , Ukraine
3. Stepan Demianchuk International University of Economics and Humanities 4Stepana Demianchuka Str., Rivne , 33027 , Ukraine