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Discussion on accuracy caused by utilization of background database in building LCA

Research Project

Project/Area Number 25870771
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Architectural environment/Equipment
Environmental engineering and reduction of environmental burden
Research InstitutionPrefectural University of Hiroshima (2014)
Tokyo University of Science (2013)

Principal Investigator

KOBAYASHI Kensuke  県立広島大学, 生命環境学部, 准教授 (30581839)

Project Period (FY) 2013-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2014: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Keywordsライフサイクルアセスメント / インベントリデータ / バックグラウンドデータ / 建築 / 住宅 / 誤差 / CO2排出量 / 精度 / 誤差分析 / 原単位
Outline of Final Research Achievements

This study aimed to reduce LCA errors that are often caused by classification boundary mismatches among background data systems. Aiming at practical reduction in items of higher priority, the study followed the steps: (a) Responses to questionnaire survey on needs for building LCAs were analyzed. (b) A method for ‘adaption’ was developed to minimize errors mainly caused by data boundary mismatches. (c) The adaptation ratios of 8 housing samples were calculated. (d) CO2 emissions were calculated of the 8 samples by using data from the housing material manufacturing processes and compared to clarify errors. (e) Based on the results gained; the points of careful precautions were suggested, while pointing out some most influential items that should be added to the existing background data to reduce errors.

Report

(3 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • Research Products

    (8 results)

All 2015 2014 2013 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) Remarks (1 results)

  • [Journal Article] 建築物のLCAにおける評価精度の検討 建築学会原単位データベースに優先的に追加 すべき項目の抽出と追加による精度の改善2015

    • Author(s)
      小林謙介、河上慎太郎、石田昌平、田原聖隆
    • Journal Title

      日本建築学会 環境系論文集

      Volume: 707 Pages: 91-98

    • NAID

      200000404299

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] LCCM を指向とした環境配慮住宅のLCCO2 評価に関する研究 データの不確実性と精度を考慮したCO2削減目標の実現性検証手法2015

    • Author(s)
      清家剛、兼松学、小林謙介、磯部孝行、名取発
    • Journal Title

      日本建築学会 環境系論文集

      Volume: 707 Pages: 55-65

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] インベントリ分析における評価精度向上に関する検討 ~住宅を例に適合性とPedigree Matrixを用いた評価誤差の試算~2015

    • Author(s)
      河上慎太郎、小林謙介、田原聖隆、井上隆
    • Organizer
      第10回日本LCA学会研究発表会
    • Place of Presentation
      兵庫県神戸市
    • Year and Date
      2015-03-09 – 2015-03-11
    • Related Report
      2014 Annual Research Report
  • [Presentation] 建築物のLCAにおける評価精度の検討 ~その4 AIJ-LCALCAに優先的に追加すべき原単位の検討~2014

    • Author(s)
      河上慎太郎、小林謙介、石田昌平、井上隆、田原聖隆
    • Organizer
      日本建築学会大会
    • Place of Presentation
      兵庫県神戸市
    • Year and Date
      2014-09-12 – 2014-09-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] 建築物のLCAにおける評価精度の検討 ~その5 原単位追加による精度向~2014

    • Author(s)
      小林謙介、河上慎太郎、石田昌平、井上隆、田原聖隆
    • Organizer
      日本建築学会大会
    • Place of Presentation
      兵庫県神戸市
    • Year and Date
      2014-09-12 – 2014-09-14
    • Related Report
      2014 Annual Research Report
  • [Presentation] インベントリ分析における評価精度向上に関する検討 建築分野におけるバックグラウンドデータの拡充手法の提案2014

    • Author(s)
      石田昌平、河上慎太郎、小林謙介、田原聖隆、井上隆
    • Organizer
      日本LCA学会大会
    • Place of Presentation
      芝浦工業大学
    • Related Report
      2013 Research-status Report
  • [Presentation] 建築物のLCAにおける評価精度の検討 その3 不適合データの利用によって生じる誤差の試算2013

    • Author(s)
      石田昌平、久保村赳夫、小林謙介、田原聖隆、井上隆
    • Organizer
      日本建築学会大会
    • Place of Presentation
      北海道大学
    • Related Report
      2013 Research-status Report
  • [Remarks] 小林謙介研究室

    • URL

      http://www.pu-hiroshima.ac.jp/~kensuke/

    • Related Report
      2014 Annual Research Report

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Published: 2014-07-25   Modified: 2019-07-29  

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