Dr. Sandeep Kumar is a professor and Department Chair in Civil and Environmental Engineering at Old Dominion University, Norfolk, VA. He is the Director of the Biomass Research Laboratory (BRL). He is a Section Board Member of the journal Sustainability and an Editorial Board Member of the journal Biomass at MDPI. His research interests mainly focus on biofuels, biomass, supercritical fluids, subcritical and supercritical water, and hydrothermal and reaction engineering. His scientific output includes 70 publications in various journals with an h-index of 24 (Scopus, January 2024).