カーボンフットプリント分析における異なるソフトウェア手法の比較：3Dプリント金型インサートを用いたパイロット研究
Comparison of Different Software Approaches to Carbon Footprint Analysis: Pilot Study Using a 3D-Printed Mold Insert Example (原題)
Michal Simon, Nikola Bednarova, Petr Hořejší
🤖 gxceed AI 要約
日本語
3Dプリント金型インサートのカーボンフットプリントをEcochain MobiusとGaBi Spheraの2ソフトで評価した。同一のTRACI 2.1手法を用いても、輸送段階で56.36%、リサイクルで50.00%など段階ごとに大きな差が生じ、総気候変動影響は49.45%異なった。ソフトとデータベースの選択がLCA結果を大きく左右することを示し、比較研究における透明性と方法論的一貫性の必要性を裏付けた。
English
This study compared the carbon footprint of a 3D-printed mold insert using Ecochain Mobius and GaBi Sphera under the same TRACI 2.1 method. Despite identical methodology, stage-level results diverged sharply (transport 56.36%, recycling 50.00%), and total climate impact differed by 49.45%. It shows that software and database choice materially affects LCA outcomes, underscoring the need for transparency and methodological consistency.
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
SSBJ・有報でのScope3算定や製品別CFP開示が進む日本企業にとって、算定ソフト・データベース選択が結果を最大約5割変え得るという実証は、開示の比較可能性と第三者検証の重要性を裏付ける。サプライチェーン排出量の算定基盤整備を検討する実務担当者に示唆が大きい。
In the global GX context
As ISSB/CSRD and product-level carbon footprint rules push toward comparable Scope 3 and CFP figures, this pilot quantifies how software and database choices can swing results by nearly 50%. It reinforces the global push for methodological transparency, database disclosure, and assurance in corporate climate accounting.
👥 読者別の含意
🔬研究者:LCA/CFP算定におけるソフト・データベース依存性の定量証拠を提供する。
🏢実務担当者:CFP算定ツール選定と結果の比較可能性確保、データベース開示の必要性を再認識できる。
🏛政策担当者:排出量算定・開示制度設計で方法論とデータベースの透明性要件を検討する根拠になる。
📄 Abstract（原文）
Abstract Life-cycle assessment (LCA) is a key tool for evaluating the environmental impacts of products and processes, providing a comprehensive view of their sustainability. This study evaluated the carbon footprint of a three-dimensional (3D)-printed mold insert using Ecochain Mobius (Ecoinvent Association, Zurich, Switzerland) version 3.9.1 and GaBi Sphera (Sphera Solutions, Chicago) version 2024.2. The software tools were selected because of their widespread use, differing databases (ecoinvent- and GaBi-based data sets), and the possibility of comparison using the same Tool for Reduction and Assessment of Chemicals and Other Environmental Impacts (TRACI 2.1) life-cycle impact assessment (LCIA) method. The mold inserts were fabricated using multi jet fusion (MJF) technology on an HP Jet Fusion 4200 printer, enabling layer-by-layer powder deposition with precise energy and thickness control. The analysis covered all main life-cycle phases: material transport to the printer, mold insert printing, delivery of the mold insert, use, recycling, and transport of recycled material. Results revealed substantial differences between the software tools, with the largest deviations observed for the transport of polyamide 12 (PA 12) powder to the printing facility (56.36%) and mold recycling (50.00%). Other stages, including the 3D printing phase (49.38%), transport to customer (26.44%), and transport of recycled material (26.21%), also showed notable differences. No impacts were assigned to the use phase (Stage 4), because the mold insert was assessed as a stand-alone product system and no operational burdens were modeled. Overall, the total impact on climate change differed by 49.45% between Ecochain Mobius and GaBi Sphera. These findings confirm that the selection of software and database content can significantly influence LCA results, underscoring the need for transparency and methodological consistency in comparative studies.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1061/joeedu.eeeng-8649first seen 2026-10-02 04:55:43
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