1. Professor, Dept. of Mechanical Engineering / Air Conditioning and Refrigeration Systems, Al-Zaytoonah Univ. of Jordan, 11733 Amman, Jordan.
2. Lecturer, Dept. of Mechanical Engineering / Air Conditioning and Refrigeration Systems, Al-Zaytoonah Univ. of Jordan, 11733 Amman, Jordan (corresponding author).
3. Assistant Professor, Dept. of Mechanical Engineering / Air Conditioning and Refrigeration Systems, Al-Zaytoonah Univ. of Jordan, 11733 Amman, Jordan.
4. Assistant Professor, Dept. of Mechanical Engineering, Philadelphia Univ., 19392 Amman, Jordan.