Reactor design is a field of study within chemical engineering and nuclear engineering that focuses on the design and optimization of reactors for various industrial processes, such as chemical synthesis, energy production, and environmental remediation. This research area involves the development of mathematical models, computational simulations, and experimental studies to improve the efficiency, safety, and sustainability of reactor systems. Key considerations in reactor design include reaction kinetics, heat transfer, mass transfer, fluid dynamics, and reactor materials. Researchers in this field often work on designing novel reactor configurations, developing advanced control strategies, and evaluating the environmental impact of reactor operations.