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Research on the Effects of Pre-occupancy Ventilation upon the Improvement of Indoor Air Quality

Research Project

Project/Area Number 08455274
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Architectural environment/equipment
Research InstitutionWaseda University

Principal Investigator

KIMURA Ken-ichi  Professor, Waseda University, 理工学部, 教授 (50063558)

Co-Investigator(Kenkyū-buntansha) IWASHITA Go  Asst.Professor, Kagoshima University, 工学部, 助教授 (90253905)
Project Period (FY) 1996 – 1998
Project Status Completed (Fiscal Year 1998)
Budget Amount *help
¥5,700,000 (Direct Cost: ¥5,700,000)
Fiscal Year 1998: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1997: ¥1,300,000 (Direct Cost: ¥1,300,000)
Fiscal Year 1996: ¥2,900,000 (Direct Cost: ¥2,900,000)
Keywordsformaldehyde / lauan plywood / pre-occupancy ventilation / volatile organic compounds / チャンバー法 / 揮発性有機化合物 / 知覚空気汚染 / 接着剤 / 揮発性有機化合物(VOCs) / ホルムアルデヒド(HCHO) / 建材 / 塗料
Research Abstract

Building materials used indoors usually emit volatile organic compounds (VOC) and formaldehyde into the interior space. It has been known that the emission rate decayed with the time after the material was exposed to the space. Since the concentrations of air pollutants are very high when buildings are newly constructed, "preoccupancy ventilation" is sometimes used for reducing the pollution level. The purpose of this study is to consider the validity of the pre-occupancy ventilation.
A field study on indoor air quality in detached houses in Kagoshima City was conducted. The formaldehyde concentrations were lower than 0.08 ppm that was the maximum acceptable level of WHO.On the other hand, the TVOC (total volatile organic compounds) concentrations were higher than 0.3 mg/rm^3 of WHO target value.
Small scale chambers have been used to develop the emission rate data of VOCs and formaldehyde. These tests involve placing samples in the chambers and measured concentrations of pollutants at various times. The concentration versus time data is used to determine the parameters of emission rate models.
The double exponential decay model proposed by Chang and Guo was an appropriate method for fitting to the VOCs concentration data emitted from polyurethane. The constant emission and double exponential decay model was proposed for formaldehyde emission from lauan plywood.
The higher the temperature, the greater the emission rate of free formaldehyde from the lauan plywood. The bakeout method was effective to expedite the free formaldehyde emission and to reduce a free amount of formaldehyde in the lauan plywood.
In order to determine the validity of the pre-occupancy ventilation, the emission mechanism should be understood. It is recommended to develop the emission model for various chemical pollutants.

Report

(4 results)
  • 1998 Annual Research Report   Final Research Report Summary
  • 1997 Annual Research Report
  • 1996 Annual Research Report
  • Research Products

    (13 results)

All Other

All Publications (13 results)

  • [Publications] 高橋睦、古垣順也、佐藤剛、岩下剛、木村建一: "ラワン合板から放たれるホルムアルデヒドの発生経時変化に関する研究" 日本建築学会研究報告九州支部環境系. 第38号. (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Go Iwashita, Hiroshi, Akasaka and Ken-ichi Kimura: "Study on the composite effects of perceived air pollution from building materials and adhesives" Proceeding of ICHES '98. 1998. 631-634

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 田島健司、岩下剛、木村建一: "訓練パネルを用いた知覚空気汚染源発生量の加法生に関する研究(対数モデルを用いた加法生の検討" 日本建築学会大会学術講演梗概集. 環境工学. 723-724 (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 田島健司、岩下剛、赤坂裕: "非定常状態における室内空気汚染物質の濃度の挙動と異種建材の接着施工時における各建材の複合影響に関する研究" 日本建築学会九州支部報告. 環境系. (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 岩下剛、木村建一: "鹿児島市の戸建て住宅におけるVOCs・ホルムアルデヒド濃度実測" 日本建築学会研究報告九州支部環境系. 第37号. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 岩下剛、牛山章子: "Time Profile of Perceived Air Pollution Emitted from Building Materials after Exposed to Space" 日本建築学会計画系論文集. 494号. (1997)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] Go Iwashita, Hiroshi, Akasaka and Ken-ichi Kimura: "Study on the composite effects of perceived air pollution from building materials and adhesives" Proceeding of ICHES'98. 631-634 (1998)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1998 Final Research Report Summary
  • [Publications] 高橋睦、古垣順也、佐藤剛、岩下剛、木村建一: "ラワン合板から放たれるホルムアルデヒドの発生経時変化に関する研究" 日本建築学会研究報告九州支部環境系. 第38号. (1999)

    • Related Report
      1998 Annual Research Report
  • [Publications] Go Iwashita, Hiroshi Akasaka and Ken-ichi Kimura: "Study on the composite effects of perceived air pollution from building materials and adhesives" Proc.of ICHES'98. 631-634 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] 田島健司、岩下剛、木村建一: "訓練パネルを用いた知覚空気汚染源発生量の加法性に関する研究(対数モデルを用いた加法性の検討)" 日本建築学会大会学術講演梗概集. 環境工学. 723-724 (1997)

    • Related Report
      1997 Annual Research Report
  • [Publications] 田島健司、岩下剛、赤坂 裕、木村建一: "非定常状態における室内空気汚染物質の濃度の挙動と異種建材の接着施工時における各建材の複合影響に関する研究" 日本建築学会九州支部報告. 環境系(発表予定). (1998)

    • Related Report
      1997 Annual Research Report
  • [Publications] 岩下剛、木村建一: "鹿児島市の戸建て住宅におけるVOCs・ホルムアルデヒド濃度実測" 日本建築学会九州支部研究報告環境系. 3月. (1997)

    • Related Report
      1996 Annual Research Report
  • [Publications] 岩下剛、牛山章子: "Time Profile of Perceived Air Pollution emitted from Building Materials after exposed to Space" 日本建築学会計画系論文集. 494号. (1997)

    • Related Report
      1996 Annual Research Report

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Published: 1996-04-01   Modified: 2016-04-21  

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