Abstract
This research addresses the growing need for sustainable energy solutions in building design by integrating phase change materials (PCMs) with solar chimney (SC) systems to enhance thermal performance and energy efficiency. Through a comprehensive review of existing studies, this paper evaluates the evolution, application, and benefits of PCM-integrated SC technologies across diverse architectural environments. The findings demonstrate that the integration of PCMs significantly enhances thermal performance by stabilizing indoor temperatures, improving ventilation rates, and reducing reliance on conventional heating systems, which leads to notable energy savings and promotes more sustainable building practices. Additionally, the operational efficiency of solar chimneys is extended, collectively improving indoor air quality. However, the study identifies several barriers to widespread adoption, including high initial costs, the limited thermal conductivity of certain PCM types, and a lack of awareness among stakeholders. To overcome these challenges, the study recommends further research into advanced PCM formulations with improved thermal properties, the development of intelligent control systems for optimized performance, and the promotion of regulatory frameworks that support PCM incorporation in building designs. The paper concludes that addressing these challenges is critical for unlocking the full potential of PCM-integrated solar chimneys in improving sustainability and energy efficiency within the built environment.