Iranian Sustainable Building Scientific Association International Journal of Urban Management and Energy Sustainability 2538-1628 Articles in Press 2025 07 23 Multi-Objective Optimization for Sustainable Management Strategies: Utilizing Daylighting to Enhance Thermal Comfort and Reduce Energy Consumption in Classrooms 727077 10.22034/ijumes.2025.2039678.1250 EN Mahdi Ouria Research Institute of Cyber Politics, AJA Command and staff University Asghar Asgharzadeh Human Capital Research Institute, AJA Command and staff University Ali Alikhani Department Architecture, Iran university Science and Technology, Iran, Tehran. Mehdi Khakzand Associate Professor of Landscape Architecture, Iran University of Science & Technology 0000-0001-9390-3433 Journal Article 2024 08 26 This study investigates the optimization of energy consumption and thermal comfort in classrooms at the Iran University of Science and Technology (IUST) in Tehran by integrating daylighting strategies. A multi-objective optimization approach balanced the selection of glazing materials and the design of shading devices to effectively harness natural daylight. Using Rhinoceros 3D and Grasshopper with plugins Ladybug, Honeybee, and Wallacei X, simulations incorporated Tehran's climate data to model the impact of daylight on energy use and thermal comfort. The research focused on two classrooms, with models representing south-facing (Model A) and north-facing (Model B) orientations. Results highlighted that optimizing window characteristics and shading devices significantly reduced energy consumption and improved thermal comfort, as measured by Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) metrics. For Model A, PMV and PPD improved by 40% and 19%, respectively, while energy consumption decreased from 220 kWh to 190.54 kWh. For Model B, PMV and PPD improved by 17% and 15%, respectively, with energy consumption reduced from 228.78 kWh to 209.03 kWh. The findings demonstrate that integrating daylighting strategies, optimized window characteristics, and shading devices can significantly enhance both energy efficiency and thermal comfort in educational spaces. This approach provides a sustainable and efficient design solution, with potential applicability to various building types and climates.