Journal of Resource Management and Decision Engineering 4 Serial Number 10 2025 03 01 Smart Shading Devices: Innovation in the Design of Semi-Open Spaces to Enhance Thermal Comfort in Hot and Arid Cities – Case Study: Mashhad Smart Shading Devices: Innovation in the Design of Semi-Open Spaces to Enhance Thermal Comfort in Hot and Arid Cities – Case Study: Mashhad 1 56 10.61838/kman.jrmde.4.1.13 EN Journal Article 2024 11 26 <p>This study investigates the impact of smart shading device design on the thermal behavior of semi-open spaces in four-story buildings in the city of Mashhad. Using two simulation software programs (Honeybee and Envi-met), the results indicate that models with greater shading coverage (three enclosed sides) demonstrate superior thermal performance on the summer solstice compared to models with minimal shading (one enclosed side). Additionally, balconies located at the central façade of the building exhibit the best thermal behavior on the summer solstice, while centrally placed balconies with two enclosed sides yield the best results on the winter solstice. The study concludes that balcony design should ensure three shaded sides during summer and two shaded sides during winter. It is recommended that balconies be designed with two enclosed sides and a movable canopy in order to achieve both optimal summer thermal performance and desirable winter conditions. In response to the research questions, the study analyzes the factors affecting the thermal behavior of semi-open spaces and the variables influencing the design of shading devices across different seasons. Overall, this research contributes to the optimal design of smart shading devices in Mashhad and may serve as a practical guide for architects and designers aiming to enhance thermal comfort in semi-open spaces.</p> https://www.journalrmde.com/index.php/jrmde/article/download/94/90