1. EDF Polska S.A., Research and Development, Ciepłownicza 1 St., Kraków 31-587, Poland e-mail:
2. Institute of Thermal Engineering, Faculty of Mechanical Engineering, Cracow University of Technology, Al. Jana Pawła II 37, Kraków 31-864, Poland e-mail:
3. EDF Polska S.A., Engineering, Ciepłownicza 1 St., Kraków 31-587, Poland e-mail: