Research on Carbon Emission Calculation and Emission Reduction Strategies for Buildings Based on the Whole Life Cycle
全ライフサイクルに基づく建築物の炭素排出量計算と排出削減戦略に関する研究 (AI 翻訳)
Xiaolong Xu, Suyun Yu, Hongmei Lu, Zhen Sun, Kelin Zheng, Zede Liang, Zhenjun Xu
🤖 gxceed AI 要約
日本語
中国瀋陽のほぼゼロエネルギーオフィスビルを対象に、LCA理論と炭素排出係数法を用いて全ライフサイクル（建材生産・輸送、建設、運用、解体）の炭素排出量を算定。年平均排出原単位は56.36 kgCO2e/(m2・a)で、運用段階が最大（37.83 kgCO2e/(m2・a)）、次いで建材生産段階（31.67%）であった。高性能断熱材等の使用により、従来建築に比べ運用段階の割合が低く、材料生産の割合が高い。各段階に応じた低炭素材料選定、再生可能エネルギー利用、効率的設計等の削減戦略を提案。
English
This study conducts a life cycle carbon emission analysis of a nearly zero-energy office building in Shenyang, China, using LCA and carbon emission factor method. The average annual emission intensity is 56.36 kgCO2e/(m2·a), with the operation stage contributing the largest share (37.83 kgCO2e/(m2·a)), followed by material production (31.67%). Compared to conventional buildings, operational emissions are lower while material production emissions are higher due to high-performance insulation. Targeted reduction strategies are proposed for each life cycle stage.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
中国の建築LCA事例であり、日本の建築物LCAやゼロエネルギービル政策（ZEB）の参考にはなるが、排出係数や建材特性が異なるため直接適用は難しい。日本のGX文脈では、建築分野のライフサイクル炭素評価手法の国際比較として位置づけられる。
In the global GX context
This paper provides a detailed LCA case study for a nearly zero-energy building in China, offering quantitative insights into emission hotspots. Globally, it contributes to the growing body of building LCA literature, relevant for ISSB and TCFD-aligned disclosure of embodied and operational carbon in real estate. The findings highlight the trade-off between operational and embodied emissions in high-performance buildings.
👥 読者別の含意
🔬研究者:Provides a complete LCA methodology and case data for a nearly zero-energy building, useful for comparative building carbon studies.
🏢実務担当者:Offers stage-specific carbon reduction strategies (material selection, renewable energy, efficient design) applicable to green building projects.
🏛政策担当者:Demonstrates the importance of life cycle thinking in building carbon regulations, supporting policies like embodied carbon limits.
📄 Abstract（原文）
Global climate change necessitates urgent carbon reduction, with the building sector being a major contributor. This study conducts a comprehensive life cycle carbon emission analysis of a nearly zero-energy office building in Shenyang, China, using the LCA theory and the carbon emission factor method. The calculation covers the production and transportation of building materials, construction, operation, and demolition stages. The results show that the building’s average annual carbon emission intensity is 56.36 kgCO2e/(m2·a). The operation stage contributes the largest share, with an intensity of 37.83 kgCO2e/(m2·a), primarily due to HVAC energy consumption. The material production and transportation stage follows, accounting for 31.67% of total emissions. Compared to conventional buildings, the proportion of operational emissions in this nearly zero-energy building is relatively lower, while the share from material production is significantly higher due to the use of high-performance insulation and components. Based on these findings, targeted carbon reduction strategies are proposed for each life cycle stage, emphasizing low-carbon material selection, renewable energy utilization, and efficient design. This study provides a quantitative reference for achieving carbon reduction goals in the building sector.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/buildings16081487first seen 2026-05-05 19:12:34
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。