1. Institute of Civil Engineering, Faculty of Civil and Transport Engineering, Poznan University of Technology, 60-965 Poznan, Poland
2. Institute of Electrical Engineering and Electronics, Faculty of Automatic Control, Robotics and Electrical Engineering, Poznan University of Technology, 60-965 Poznan, Poland
3. Institute of Thermal Energy, Faculty of Environmental Engineering and Energy, Poznan University of Technology, 60-965 Poznan, Poland