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.

抄録 学術建築物は、エネルギー消費が高く、炭素を排出する重要なタイプの公共建築物であり、そのエネルギー使用量と炭素フットプリントの削減は、取り組むべき緊急の課題である。さらに、学術建築物は明確な運用時間特性を示すが、現在の国内外の建築設計基準はこれらの差異を考慮していない。本研究は、教育建築物における冬季・夏季休暇などの間欠的運用特性を考慮し、異なる壁断熱厚さの省エネ・排出削減性能を分析するという新たな視点を採用する。長沙にある学校の建築モデルを構築し、EnergyPlusソフトウェアを用いてエネルギー消費をシミュレーションし、ライフサイクル評価による炭素排出量を実施した。本研究は、運用時間特性を考慮した場合と考慮しない場合における、様々な壁断熱設計間のエネルギー使用量とライフサイクル炭素排出量のギャップを比較する。主な知見は以下の通りである：1) 運用時間特性を無視すると、建築物のエネルギー消費量と炭素排出量が過大評価される。ケーススタディ建築物で断熱層が20 mmの場合、年間エネルギー消費量は56.76 %増加し、ライフサイクル炭素排出量は60,152.4 tCO2増加した；2) ライフサイクル炭素排出量分析により、運用時間特性を考慮した場合と考慮しない場合で、建築物外壁の最適断熱厚さに顕著な差異が明らかになり、それぞれ70 mmと60 mmとなった；3) 運用時間特性を無視すると、さらにケースあたり474.82 tCO2の追加排出が生じる。全体として、運用時間特性は建築物のエネルギー使用量とCO2に有意な影響を及ぼすため、学術建築物の設計に組み込む必要がある。

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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 · last seen 2026-06-16 04:53:43