Saad A. El-Sayed is a Professor Dr. of Mechanical Power Engineering at Egypt's Zagazig University. Clean combustion technology, biomass fuels and bioenergy, energy, heat transfer, thermodynamics, and thermal and dust explosions are among my research interests. I am a technical, section, and board editor for various journals in energy and mechanical engineering. In addition, I am a regular reviewer for several highly regarded international journals and I reviewed more than 350 papers. I was the director of my university's consulting mechanical engineering and energy research Centre. I shared as technical committee member (TCM) and organization committee member (OCM) in almost 50 International conferences of energy, green energy, biofuels, etc. I did research projects in my university, Kuwait, Saudi-Aribia and china in 2020 and have publications of more than 85 papers and 5 book chapters published in prestigious publishing companies. Reviewer of Scientific Committee promotion of prof. in Egyptian Universities, 2013-2018 and 2025-2028. Member of ASCE, A-PC, APCBEES, etc.