Quantifying the potential of low-carbon materials and passive design toward deep carbon reduction pathways
低炭素材料とパッシブデザインによる深い炭素削減経路の可能性の定量化 (AI 翻訳)
Zhifan Liu, Danlin Hou, Yang Li
🤖 gxceed AI 要約
日本語
本研究は、バンクーバーの戸建住宅を対象に、低炭素材料とパッシブデザインのCO2削減ポテンシャルを体系的に分析した。CLTが最も効果的で、全体で53.8%の炭素削減を達成。将来気候下では運用炭素が増加するため、適応策の重要性を示す。
English
This study systematically analyzes the CO2 reduction potential of low-carbon materials and passive design strategies for a typical single-family house in Vancouver, Canada. CLT is the most effective substitute, and combining optimal materials with passive design achieves a 53.8% total carbon reduction. Future climate scenarios show increased operational carbon, highlighting the need for adaptation.
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
日本の建築分野では、LCCO2評価や木造建築推進が進んでおり、CLTの効果を定量化した本研究成果は、日本の木造住宅政策やZEB化に向けた設計指針に示唆を与える。
In the global GX context
This study provides empirical evidence on low-carbon material substitution and passive design, relevant to global efforts on building decarbonization and net-zero targets. It offers insights for policymakers and practitioners in regions with similar climates.
👥 読者別の含意
🔬研究者:Provides a comprehensive framework for assessing embodied and operational carbon reduction in residential buildings.
🏢実務担当者:Offers actionable insights on material selection and passive design strategies for low-carbon building projects.
🏛政策担当者:Informs building codes and incentives for low-carbon materials and passive design to meet climate targets.
📄 Abstract（原文）
Building whole-life carbon emissions arise from embodied carbon (EC) and operational carbon (OC). Reducing both is vital to achieving net-zero targets. Besides optimizing structural design to minimize material use, selecting low-carbon materials is a key strategy for EC reduction. For OC, mechanical system optimization has been well studied, while the influence of passive design remains less explored. This study fills this gap by systematically analyzing the CO 2 reduction potential of low-carbon materials and passive design strategies and their integration on a typical single-family house in Vancouver, BC, Canada. A material inventory was developed, covering conventional and regionally sourced low-carbon materials, for practical substitution scenario design. Three passive measures were also sourced from regional building codes to investigate their impact on OC with variable performance levels. Results suggest that Cross-Laminated Timber (CLT) is the most effective substitute for EC reduction within the defined system boundary, followed by green concrete and PVC window frames. At a whole-building level with all optimal material substitutes, EC reduced by up to 38.7%. Among passive measures, window glass properties appear to be more effective than airtightness or orientation in the Vancouver climate. Collectively, these passive design strategies cut OC by 53.6% with the original material condition. Combining optimal low-carbon material substitution with these passive designs achieves a total carbon reduction of 53.8% (140,235 kg CO 2 e). Under the future climate, total OC increases by 34.4% in mid-century (2041-2060) and 22.8% in late-century (2081-2100) typical meteorological years compared with the lowest-GHG configuration under the current climate. • Developed a material inventory with embodied carbon (EC) and thermal property data. • CLT offers the greatest EC reduction, followed by green concrete, and PVC. • 2380 simulations to assess operational carbon for material and passive design. • Achieved 53.8% CO 2 reduction for the optimal configuration. • Individually, window outperforms material substitution, airtightness and orientation.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.jobe.2026.116160first seen 2026-05-17 05:25:24 · last seen 2026-05-24 04:48:32
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