Dr. Eng Medhat Elkelawy obtained his B.E B.Sc. in Mechanical Engineering (Energy Engineering), awarded Excellent with degree of honor, from the Faculty of Engineering, Tanta University, Egypt, in 2000. Dr. Elkelawy received his Master of Science in Mechanical Engineering (Energy Eng.), I C Engine and Automobile, from the Mechanical Power Engineering Department, Faculty of Engineering, Tanta University, Egypt, in 2004. He received his PhD in Power Engineering and Engineering Thermo-physics, IC Engine and Combustion System, in 2009 from the School of Energy and Power Engineering, Huazhong University of Science and Technology, China. Dr. Elkelawy is currently working as Professor (Associate) in the Mechanical Engineering Department in Tanta University, Egypt. Dr. Elkelawy has published 120 plus research papers in reputed international journal publications and conferences like SAE, Taylor and Francis, Springer, Elsevier, ASME, etc., and has also received 1900 plus Google scholar citations with H index 26 and i10 index 36. Dr. Elkelawy has completed more than eight research projects from China, STDF, and Tanta University, and he is the head of the internal combustion engine laboratory, Tanta University. He is currently working in the field of experimental and numerical simulation studies on the combustion and exhaust emissions of the conventional and nonconventional engine such as the Homogeneous Charge Compression Ignition (HCCl) engine operated with different kinds of fuel.