建築物のLCAにおける評価精度の検討

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  • 小林 謙介
    Assistant Prof., Dept. of Architecture, Faculty of Science and Technology, Tokyo Univ. of Science, Dr. Eng.
  • 石田 昌平
    Graduate School, Dept. of Architecture, Faculty of Science and Technology, Tokyo Univ. of Science
  • 久保村 赳夫
    Graduate School, Dept. of Architecture, Faculty of Science and Technology, Tokyo Univ. of Science
  • 田原 聖隆
    Group Leader, Research Institute of Science for Safety and Sustainability, National Institute of Advanced Industrial Science and Technology, Dr. Eng.
  • 兼松 学
    Assoc. Prof., Dept. of Architecture, Faculty of Science and Technology, Tokyo Univ. of Science, Dr. Eng.
  • 井上 隆
    Prof., Dept. of Architecture, Faculty of Science and Technology, Tokyo Univ. of Science, Dr. Eng.

書誌事項

タイトル別名
  • ANALYSIS ON LCA ACCURACY OF BUILDINGS
  • 建築物のLCAにおける評価精度の検討 : データの適合性が評価結果に及ぼす影響の分析
  • ケンチクブツ ノ LCA ニ オケル ヒョウカ セイド ノ ケントウ : データ ノ テキゴウセイ ガ ヒョウカ ケッカ ニ オヨボス エイキョウ ノ ブンセキ
  • Mismatches in adaptation of background data affecting LCA results
  • データの適合性が評価結果に及ぼす影響の分析

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抄録

The study aimed to clarify LCA errors caused by mismatches in system boundaries of materials actually inputted and those of background database. In CO2 emissions from wooden housing materials in their manufacturing process, such mismatches were found in as many as 70% of the cases examined. By comparison with IDEA, similar emission compositions were obtained from AIJ-LCA database, verifying the latter's usefulness for overviewing emission characteristics. However, specific analyses showed occurrence of 0.5 - 2 times more errors in the 68% confidence interval if mismatched database figures used. The study suggested such database mismatches be carefully interpreted in LCA studies.

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