Fidel Vallejo is a Full-Time Tenured Professor of Industrial Engineering at Universidad Nacional de Chimborazo (UNACH), Ecuador. He holds a PhD in Engineering Sciences (Process Engineering) from Universidad de Santiago de Chile (USACH). With over 30 indexed publications, his research focuses on process modeling, air quality assessment, and waste-to-energy technologies, including hydrothermal carbonization and gasification. His expertise includes meteorological modeling, computational fluid dynamics (CFD), and data science, contributing to efficient industrial processes and urban air quality management.