1. Department of Mechanical Engineering, Faculty of Engineering, Sudan University of Science and Technology (SUST), 11111 Khartoum, Sudan
2. Faculty of Mechanical Engineering, Department of Industrial Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
3. Energy Division, Department of Mechanical Engineering, Faculty of Engineering, Erciyes University, 38039 Kayseri, Turkey
4. Department of Aeronautical, Automotive & Ocean Engineering, Faculty of Mechanical Engineering, Universiti Teknologi Malaysia, 81310 UTM Skudai, Johor, Malaysia
5. Centre of Excellence for Catalysis Science and Technology, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia