Carbon emission optimization across the life cycle of public buildings: A case study toward achieving the Green Building 3-Star Standard
公共建築物のライフサイクルにわたる炭素排出最適化：グリーンビル3スター基準達成に向けたケーススタディ (AI 翻訳)
Rui Zhao, Hoong-Pin Lee, Jianglin Wang
🤖 gxceed AI 要約
日本語
中国の図書館を事例に、ライフサイクル全体の炭素排出量をGB/T 51366-2019に基づき定量評価。低炭素材への代替、地産地消、プレハブ工法、再生可能エネルギー導入等の対策により、総排出量を30.3%削減（68tCO2-eq）。グリーン建材適用率73%で3スター認証を達成し、投資回収期間4.7年、炭素収入も見込める。
English
This paper presents a case study of a Chinese library achieving three-star green building certification through life-cycle carbon assessment. By replacing materials, local procurement, prefabrication, and renewable energy integration, total emissions were cut by 30.3% (68 tCO2-eq), with green material usage at 73%. The payback period is 4.7 years, and carbon trading revenue is notable, offering a replicable model for low-carbon building retrofit.
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
日本でもZEBやCASBEE等のグリーンビル基準が拡大しているが、本稿は中国のGB/T規格に基づく実証データを示し、投資回収期間や炭素収益を具体的に提示している。日本での公共建築物の脱炭素改修やLCA評価に示唆を与える。
In the global GX context
This study provides empirical evidence on lifecycle carbon reduction in public buildings, using a Chinese standard. The payback period and carbon trading income are directly relevant to global building decarbonization efforts, especially for countries developing green building certification systems. It demonstrates a practical pathway for scope 1, 2, and 3 emission reductions in the built environment.
👥 読者別の含意
🔬研究者:The lifecycle assessment methodology and optimization measures provide a replicable framework for building carbon reduction research.
🏢実務担当者:The specific material substitutions, local procurement, and renewable energy integration offer a blueprint for green building retrofits with quantifiable payback.
🏛政策担当者:The results validate the effectiveness of green building standards and carbon pricing, supporting policy design for building sector decarbonization.
📄 Abstract（原文）
This article examines how an 8053 mm 2 library can meet three-star green building certification standards by establishing a life-cycle carbon emission assessment framework and quantitatively analyzing carbon emissions and economic-environmental benefits during material production, transportation, construction, and operation. The study adopts the Guanglada performance analysis model, combined with the national standard GB/T 51366-2019 to calculate carbon emissions. Through collaborative optimization measures such as replacing low-carbon materials, local procurement, prefabricated construction, and integrating renewable energy, the total carbon emissions of the project were reduced by 68040 kg CO 2 -eq, a decrease of 30.3%, with a carbon intensity of 19.4 kg CO 2 -eq/m 2 . Moreover, the significant findings may suggest that the application rate of green building materials reached 73%, meeting three-star standards. However, results might indicate embodied carbon decreased after optimization, with operational carbon becoming the main emission source. Thus, evidence may show the incremental investment payback period is only 4.7 years, with carbon trading income notable. In light of these findings, the study could indicate that these key empirical results provide a replicable path for the low-carbon renovation of public buildings, also offering important evidence for relevant design and decision-making under the dual-carbon goals.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1051/epjconf/202637302005first seen 2026-06-29 06:41:29
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