O. Heydaripour , M.s. Taher Tolou Del, Volume 39, Issue 3 (9-2024)
Abstract
Aim:The exponential increase in energy consumption in the residential sector and the unregulated design and construction of residential apartments in Isfahan have led to a critical energy consumption situation in the city. Therefore, the aim of this research was to model the relationship between the geometric characteristics of typical residential apartments and their energy performance for use in urban planning. Methodology: This was an applied study carried out in 2024 using quantitative research method including modeling, building energy simulation, regression modeling, and optimization. Geometric factors affecting building energy consumption were identified, coded for automated modeling, and entered into the cyclic process of performance-based computational design. The tools used in this research include Rhino software, the Grasshopper environment, and the Ladybug Tools, Colibri, and Wallacei plugins. Findings:The energy performance models could predict actual residential apartment energy consumption with over 88% accuracy and a correlation coefficient greater than 0.7. Based on the findings, increasing the land plot area led to a decrease in energy consumption per square meter. Additionally, a nearly square building layout with limited north-south elongation resulted in optimal energy performance. Reducing the height of internal spaces and maintaining a zero-degree orientation angle also contributed to optimal energy performance. Conclusion: The geometric characteristics of apartment housing significantly impact building energy consumption. Increasing the built-up area, having a length-to-width ratio close to one, a zero-degree orientation angle, and reducing the height of internal spaces in urban planning and municipal construction regulations reduces energy consumption in Isfahan.
