ENERGY EFFICIENCY EVALUATION OF ROOM BUILDING MODEL USING AEROGEL ENHANCED INSULATION WALL COATING

Abstract

Silica aerogel stands out as a promising A1-rated non-combustible thermal insulator due to its ultralow thermal conductivity (typically 0.01-0.02
W/m·K), nanoporous structure, and high-temperature stability, outperforming traditional insulators like fiberglass (0.04 W/m·K) or polyurethane foam (0.025
W/m·K) (Hao Li, et.al.2024) Recent research highlights silica aerogel's superiority in diverse applications, from building envelopes to aerospace. Demonstrated aerogel
blankets achieve near-ambient stabilization at 10 cm from 90°C sources, with equilibrium in ~10 minutes; distance impacts efficacy more than thickness, ideal for rapid insulation in
military and automotive uses (Hao Li, et.al.2024). Composites maintained low conductivity (< most aerogels) up to 1100°C, with 70% strain recovery post-900°C exposure; excels
under thermal-force coupling, suppressing lithium battery thermal runaway. (Tao Zhang, et.al. 2024). Model showed doping reduces high-temperature (>500 K) conductivity via
infrared opacity without density increase; enables lightweight superinsulation for buildings and aerospace (He Liu, et.al. 2022) . Confirmed aerogels' conductivity below air's at room
temperature due to suppressed solid/gas/radiative transfer; applied in solar power and aviation (Zhenyu Zhu, et.al. 2025). Reinforced nanocomposites boost mechanical strength while
retaining <0.015 W/m·K; addresses construction energy demands amid global warming. Reviewed aerogel (3-10 wt%) in cement/plaster for buildings; optimal 5% with cenospheres
yields 0.029 W/m·K, addresses adhesion via silanes/microsilica (K. I. Goryunova, et.al. 2024). Aerogels reduce heat transfer by 50-80% over conventional materials (Fiberglass,
Mineral Wool, PU Foam) in real-world tests, with ongoing innovations in flexibility and scalability enhancing viability (Sapna Jadhav, et.al. 2024).