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Utilizing agro-industrial wastes panels in developing cost-efficient thermally insulating wall claddings for residential energy retrofitting in Egypt

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Energy and Built Environment 2024年第5期5卷 683-703页

作者： E.A.Darwish Ayah Salem Eldeeb Department of Architecture Faculty of EngineeringAin Shams University1 Sarayat StreetAbbaseyaCairoEgypt Department of Interior Architecture Faculty of Fine ArtsAlexandria University108 Abdel-Salam Aref StreetGeleemAlexandriaEgypt

Local agro-industrial wastes-based particleboards and fiberboards in Egypt are manufactured mainly from sugarcane-bagasse and flax *** panels are used in decorations and interior *** paper aimed to broaden their market to be utilized in local low-cost and simple building envelope retrofitting packages in-stead of conventional packages that depend on imported expanded polystyrene and wet-rendered gypsum *** conductivities of various existing sugarcane-bagasse and flax-shives-based panels were measured to be used in developing multilayered interior claddings with adequate thermal insulating performance to increase the thermal mass of a validated non-insulated case-study residential building as recommended by the Egyptian Code for Energy Efficiency of Residential *** retrofitted using the developed cladding assemblies were simulated using Design Builder to determine their achieved annual energy savings and predict their *** conductivities of sugarcane-bagasse and flax-shives-based particleboards were lower than wood-based cladding panels,with the range of 0.05-0.1166 W/***,the thermal conductivities of sugarcane-bagasse fiberboard had the range of 0.0926-01,111 W/mK which is significantly lower than wood-based *** results showed that both models retrofitted,sugarcane bagasse-based and flax shives-based,achieved better energy savings,5.07%and 5.04%,than the conventionally retrofitted model,3.73%.Furthermore,the flax-shives-based model showed higher profitability,with positive income achieved in the 15th year,than a con-ventionally retrofitted model,achieved in the 20th year,and the sugarcane-bagasse-based model,achieved in the 19th ***,it was recommended that although flax-shives-based wall claddings were usually 14-20%thicker than sugarcane-bagasse-based claddings,they provided similarly high annual energy savings with lower initial costs and higher profitability.

关键词： Sugarcane bagasse Flax shives medium density fiberboard Particleboards Design Builder

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