The Influence of Residential Building Cluster Orientations on Outdoor Thermal Performance in Hot Arid Regions (Special Issue: 3rd Young Researchers Conference 2025 ) | ||||
| International Journal of Applied Energy Systems | ||||
| Volume 8, Issue 1, January 2026, Page 8-14 PDF (2.96 MB) | ||||
| DOI: 10.21608/ijaes.2026.437528 | ||||
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| Authors | ||||
Nourhan Nagy  ; Ayman Ragab; Lamees Bakeer
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| Department of Architecture Engineering, Faculty of Engineering, Aswan University, Aswan 81542, Egypt | ||||
| Abstract | ||||
| This study evaluates the impact of residential building cluster orientations on outdoor thermal performance in New Aswan City, Egypt, using ENVI-met simulations to analyze four configurations: north–south (N–S), east–west (E–W), northwest– southeast (NW–SE), and northeast–southwest (NE–SW). Key metrics—air temperature (Ta) and mean radiant temperature (Tmrt)— were assessed at pedestrian level (1.5 m) under extreme summer conditions (July 1, peak Ta= 46.11°C). Results demonstrate that the NE–SW orientation outperformed others, reducing Ta by 0.5–1.6°C during peak hours (10:00–14:00) and maintaining lower Tmrt (peak: 83°C vs. 83.63°C for E–W) through optimized shading and radiative cooling. In contrast, E–W clusters exhibited the highest thermal stress due to prolonged solar exposure. The findings highlight NE–SW as the optimal orientation for mitigating heat stress in arid regions, providing actionable insights for urban planners to enhance microclimatic stability and reduce cooling energy demands in social housing developments. | ||||
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