SFEL(Smart Farm Environment & Energy System Engineering Lab) integrates CFD(Computational Fluid Dynamics) and BES(Building Energy Simulation) technologies to precisely analyze and optimize aerodynamic environments and energy flows within various agricultural and livestock facilites, such as greenhouse, pig house, and poultry houses. By implementing numerical models that represent real-world physical phenomena, the lab predicts internal airflow variations and gas emission pathways. Based on these insights, we establish strategies for structural stability assessment and atmospheric dispersion mitigation, providing next-generation solutions for maximizing energy efficiency and realizing sustainable, intelligent production systems.