Randomized trial evaluates passive cooling effectiveness and earthquake resilience in low-income housing, indicating sustainable materials improve comfort.
This study develops a Computational Fluid Dynamics (CFD) model to evaluate passive cooling and seismic resilience in low-income housing using sustainable materials: compressed stabilized earth blocks (CSEB, ~0.75 W/mfK), bamboo (~0.12 W7mrK), and recycled insulation. Simulations analyze airflow, temperature, and heat transfer under tropical conditions (30-40°C, 1.5-3.5 m/s wind) with cross-ventilation, shading, and roof vents, plus structural assessment. Results show peak indoor temperatures 5-7°C above outdoor levels (38°C outdoor → 43-45°C baseline; 33-36°C with strategies), 4.2°C average reduction from combined ventilation vs. sealed baseline, and CSEB/bamboo walls 2-3°C cooler than concrete (1.4 W/m·K) due to lower conductivity/higher thermal mass. Cooling Effectiveness Index (CEI) ranged 0.55-0.72, demonstrating enhanced thermal comfort and earthquake resistance without mechanical cooling.
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Udayakumar et al. (2026) studied this question.
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