[1] Cyprus Univ Technol, Dept Mech Engn & Mat Sci & Engn, CY-3603 Limassol, Cyprus
[2] Natl Tech Univ Athens, Lab Steam Boilers & Thermal Plants, Athens 15780, Greece
[3] Univ Politehn Bucuresti, Candida Oancea Inst, Bucharest 060042, Romania
[4] Acad Romana, Bucharest, Romania