TY - JOUR

T1 - Design and adaptability analysis of filling rate of a self-insulation wall considering thermal performance, benefit-cost, and cold-winter and hot-summer climate

AU - Hu, Wentao

AU - Nickolaevich, Alekhin

AU - Huang, Yue

AU - Xiao, Shuoting

N1 - Thank you for the support of the China Scholarship Council and the GRANT scholarship of Ural Federal University.

PY - 2024

Y1 - 2024

N2 - 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. © 2024 The Authors.

AB - 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. © 2024 The Authors.

UR - http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=85192673011

U2 - 10.1016/j.cscm.2024.e03256

DO - 10.1016/j.cscm.2024.e03256

M3 - Article

VL - 20

SP - e03256

JO - Case Studies in Construction Materials

JF - Case Studies in Construction Materials

SN - 2214-5095

ER -