An Analysis of Lighting Quality in University Buildings in District 6 of Tehran: Proposing Improvement Strategies Aligned with Relevant Requirements and Life Cycle Cost Assessment

Lighting within educational environments is critical in establishing an optimal atmosphere that supports health, conserves energy, enhances the utility of educational spaces, and fosters effective learning. This study aims to assess the lighting quality in educational institutions, considering international standards and criteria and providing recommendations for improvements. The research focuses specifically on universities located in District 6 of Tehran, including the University of Tehran, Tarbiat Modares University, and Amirkabir University of Technology. To achieve these objectives, a mixed-method research approach has been adopted. This approach encompasses a comprehensive literature review, architectural and electrical documentation analysis, direct observations, and comparative assessments. Additionally, relevant strategies are proposed based on an examination of successful case studies that align with Iran’s lighting methodologies and technologies. A life cycle cost assessment has also been conducted to validate these proposed solutions. The findings indicated that strategies aimed at enhancing the quality of educational lighting include (1) designing lighting systems tailored to various functions while ensuring sufficient illumination levels, (2) emphasizing the integration of daylight considerations alongside the implementation of control systems, (3) designing lighting systems following geometry, spatial configurations, proportions, and furniture arrangements, and (4) ensuring that environments retain adaptability concerning the lighting systems implemented. Replacing fluorescent lamps with LED lighting and installing motion sensors in educational corridors can lead to a significant annual energy consumption reduction of 91.1%. Additionally, integrating daylight with electric lighting and utilizing active control mechanisms could achieve an even greater reduction of 95.3%.