1. Universiti Putra Malaysia Department of Chemical and Environmental Engineering Faculty of Engineering 43400 Selangor Malaysia
2. University of Tehran Department of Mechanical Engineering of Agricultural Machinery Faculty of Agricultural Engineering and Technology College of Agriculture and Natural Resources Karaj Iran
3. Islamic Azad University Department of Physics Faculty of Science Karaj Iran
4. National University of Malaysia Solar Energy Research Institute 43600 Bangi Selangor Darul Ehsan Malaysia
5. Universiti Putra Malaysia Institute of Advanced Technology 43400 Selangor Malaysia