Iranian Sustainable Building Scientific Association International Journal of Urban Management and Energy Sustainability 2538-1628 7 3 2026 07 01 Multi-Objective Optimization for Sustainable Management Strategies: Utilizing Daylighting to Enhance Thermal Comfort and Reduce Energy Consumption in Classrooms 65 87 727077 10.22034/ijumes.2025.2039678.1250 EN Mahdi Ouria Command and Staff University of the Islamic Republic of Iran Army (DAFOOS), Tehran, Iran Asghar Asgharzadeh Command and Staff University of the Islamic Republic of Iran Army (DAFOOS), Tehran, Iran Ali Alikhani Department of Architecture, ST.C., Islamic Azad University, Tehran, Iran 0009-0004-4321-6722 Mehdi Khakzand School of architecture and environmental design, Iran University of science and technology, Tehran, Iran 0000-0001-9390-3433 Journal Article 2024 08 26 Buildings are significant energy consumers, and there is growing concern regarding the environmental repercussions of energy usage because of global warming and an increase in extreme weather occurrences. This study investigates the necessity for sustainable energy management and improved thermal comfort in educational buildings, especially in classrooms at the Iran University of Science and Technology (IUST) in Tehran, Iran. The study addresses optimizing energy consumption and occupant comfort through optimal daylighting solutions in response to increasing energy demands and the growing climate issue. A multi-objective optimization method was employed to balance the selection of glazing materials and the design of shading devices to enhance daylight advantages. Employing Rhinoceros 3D and Grasshopper with the Ladybug, Honeybee, and Wallacei X plugins, simulations utilized Tehran's climatic data to evaluate the effects on energy consumption and thermal comfort. The research examined two classroom orientations: south-facing (Model A) and north-facing (Model B). Results indicated substantial enhancements: in Model A, the Predicted Mean Vote (PMV) and Predicted Percentage of Dissatisfied (PPD) measures improved by 40% and 19%, respectively, while energy usage reduced from 220 kWh to 190.54 kWh. In Model B, PMV and PPD enhanced by 17% and 15%, respectively, while energy consumption decreased from 228.78 kWh to 209.03 kWh. The findings indicate that optimal daylighting, along with window and shading devices, can significantly improve energy efficiency and comfort in educational environments. https://www.ijumes.com/article_727077_6f345f997ef86839218f052f881007c0.pdf