Assessing Natural Ventilation Performance of a Lecture Hall

The building industry faces growing challenges in improving energy efficiency and achieving environmental sustainability. This study explores the integration of natural ventilation with HVAC (heating, ventilation, and air conditioning) systems as a promising solution for sustainable building design. The primary objective is to evaluate how this integration can balance energy efficiency, indoor air quality, and occupant comfort. Through a review of existing research, real-world applications, and case studies, the study identifies key design strategies—such as building orientation, façade optimization, and intelligent control systems—that enhance the performance of integrated systems. Additionally, the research analyzes the benefits, such as reduced energy consumption and improved occupant well-being, alongside challenges like design complexity and climate adaptability. The findings demonstrate that integrating natural ventilation and HVAC systems can significantly reduce a building’s energy use and environmental footprint while promoting healthier indoor environments. This work provides actionable insights for architects, engineers, and building professionals aiming to design high-performance, sustainable structures that align with environmental and human needs.