Design and adaptability analysis of filling rate of a self-insulation wall considering thermal performance, benefit-cost, and cold-winter and hot-summer climate
The filling rate of different insulation materials significantly affects three influencing factors of self-insulating walls: insulation performance, benefit-cost, and climate adaptability. However, considering only one or two influencing factors of a self-insulating wall cannot satisfy the comprehen...
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Veröffentlicht in: | Case Studies in Construction Materials 2024-07, Vol.20, p.e03256, Article e03256 |
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Sprache: | eng |
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Zusammenfassung: | The filling rate of different insulation materials significantly affects three influencing factors of self-insulating walls: insulation performance, benefit-cost, and climate adaptability. However, considering only one or two influencing factors of a self-insulating wall cannot satisfy the comprehensive needs of building users. Therefore, this experiment comprehensively considered three influencing factors to design five types of self-insulating wall models with different filling rates (0 %, 25 %, 50 %, 75 %, and 100 %) to obtain the best filling rate scheme for insulation materials. EnergyPlus software was used to simulate the operating state of the self-insulating walls. A comparative analysis of the thermal performance and economic benefit indices indicated that compared to Type (A-1), the average inner surface temperatures of Types (B-1), (C-1), (D-1), and (E-1) increased by 1.49 %, 2.72 %, 3.56 %, and 4.47 %, respectively, indicating that an increase in the filling rate of the insulation materials improved the insulation performance of the self-insulation wall. With the same increase in the filling rate of 25 %, the energy consumption of type (B-1) decreased by 8.66 KWh/m2, and the decrease range was the largest (i.e., by 7.65 %), indicating that Type (B-1) offered the best value for money in terms of energy savings and material costs. The EPS filling rate of Type (B-1) is 25 % and the thickness is 30 mm, which best meets the requirements of the economic thickness value of thermal insulation material (dEPS≥27 mm), which also indicating that Type (B-1) can satisfy the comprehensive requirements of thermal insulation performance and cost savings in hot-summer and cold-winter climates, so Type (B-1) is the best filling scheme. |
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ISSN: | 2214-5095 2214-5095 |
DOI: | 10.1016/j.cscm.2024.e03256 |