Research on energy-saving and emission-reducing optimization of academic building wall insulation considering operational time characteristics

Unofficial AI-generated summary based on the public title and abstract. Not an official translation.

🔬研究者:This paper provides empirical evidence on how ignoring operational time characteristics can lead to significant overestimation of energy consumption and carbon emissions in academic buildings, informing future building energy modeling.

🏢実務担当者:Facility managers or design teams can use the optimized insulation thickness and life-cycle assessment method to reduce energy costs and carbon footprint for academic buildings.

🏛政策担当者:Policymakers may consider integrating operational time features into building energy codes to improve accuracy of energy performance standards.

Abstract Academic buildings represent a critical type of high-energy-intensive, carbon-emitting public buildings, making the reduction of their energy use and carbon footprint an urgent issue to address. Additionally, academic buildings exhibit distinct operational time characteristics, yet current domestic and international architectural design standards fail to account for these differences. This study adopts a novel perspective by analyzing the energy-saving and emission-reducing performance of varying wall insulation thicknesses, taking into consideration the intermittent operation features such as winter and summer vacations in educational buildings. A building model of a school in Changsha was established, and EnergyPlus software was used to simulate energy consumption and conduct a life-cycle assessment of carbon emissions. The study compares the gap in energy use and life cycle carbon emissions between various wall insulation designs, considering and disregarding operational time characteristics. Key findings include: 1) Ignoring operational time characteristics leads to overestimations in building energy consumption and carbon emissions. For the case study building with a 20 mm insulation layer, annual energy consumption increased by 56.76 %, and life-cycle carbon emissions rose by 60,152.4 tCO 2 ; 2) Life-cycle carbon emission analysis reveals a notable discrepancy in optimal insulation thicknesses for building exteriors when operational time characteristics are considered or disregarded, at 70mm and 60mm, respectively; 3) Disregarding operational time characteristics results In addition, a further 474,82 tCO 2 per case. Overall, operating time features have a significant effect on the energy use and CO 2 of the building, which requires them to be integrated into the design of academic buildings.

• openalex https://doi.org/10.1088/1742-6596/3255/1/012029first seen 2026-06-12 05:25:09