1. Faculty of Energy and Environmental Engineering, Silesian University of Technology, Konarskiego 22, Gliwice 44100, Poland
2. Faculty of Energy and Environmental Engineering, Silesian University of Technology, Konarskiego 18, Gliwice 44100, Poland
3. Faculty of Fuels and Energy, AGH University of Science and Technology, al. Mickiewicza 30, Cracow 30-059, Poland
4. TAURON Polska Energia S.A, ks. Piotra Ściegiennego 3, Katowice 40-114, Poland