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Study on energy saving methods for commercial store

Research Project

Project/Area Number 19K04727
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 23020:Architectural environment and building equipment-related
Research InstitutionShinshu University

Principal Investigator

Lee Sihwan  信州大学, 学術研究院工学系, 助教 (60624997)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords開門冷房 / ドア開閉 / ショーウインドー / 漏気 / 伝熱負荷 / エネルギー損失 / 温熱環境 / エアカーテン / 商業施設 / 省エネルギー / 改修 / 実測 / CFD
Outline of Research at the Start

ドラッグストア,洋品店,靴屋,本屋,コンビニエンスストアなどの商業施設(業務部門)の正面ファサードには,顧客の目を引き,来店者を増やすために可視性・開放性・透過性の良いショーウインドーとガラスドアの設置が一般的である。しかし,断熱性能が低い部材であるガラスの使用による熱損失及び人の出入りとドアの開閉による外気侵入は大量のエネルギー損失をひき起こす。そこで本研究では,商店街等の街区に面した商業施設(一般小売店舗)を検討対象とし,ショーウインドーからの熱損失特性を把握することと,開門営業,ドア開閉,顧客の出入りなどで発生する室内空気の漏気量とそのエネルギー損失を定量的に解明する。

Outline of Final Research Achievements

While air conditioner is running, leaving doors and windows open is a great way to reduce operating efficiency and undermine the air conditioning system’s ability to bring the indoor to a comfortable temperature. However, merchants want to business with open the door to attract more customers and to increase sales. The purpose of this study is to evaluate the heat loss and thermal environment through the door open while air conditioner and the effectiveness of several facilities in order to reduce infiltration. To achieve this goal, the air infiltration rate, the amount of infiltration were measured, and heat load was calculated using numerical energy simulation. The results show that the leaving doors open causes energy loss and deterioration of the indoor environment. In the method to reduce infiltration, the infiltration load decreased most when using the cloth curtain or the air curtain etc.

Academic Significance and Societal Importance of the Research Achievements

地球温暖化等,国際的な課題として建築物からの二酸化炭素排出削減が求められている。しかし,建築物は多種の業種・業務形態があり,現実的な省エネ対策を提案することが困難である。特に,外気に接した商業施設には,開門営業,ドア開閉,顧客の出入りなどによる外気侵入が多くのエネルギー損失を発生する。そこで本研究の成果は,目に見えない空気流動の構造・エネルギー損失量を明らかにし,商業施設におけるエネルギー損失量の低減のための省エネ対策の提案したもので,その新規性・先駆性が非常に高く,学術的・社会的な価値も非常に高い。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (16 results)

All 2021 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (12 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] 商店におけるドア開けっ放し営業による店内温熱環境2019

    • Author(s)
      李時桓
    • Journal Title

      伝熱,Journal of the Heat Transfer Society of Japan

      Volume: 58(243) Pages: 12-17

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Numerical study on heat blocking efficiency of non-recirculating air curtain and its optimal discharge velocity2019

    • Author(s)
      Sihwan Lee
    • Journal Title

      E3S Web Conference: High Energy Performance and Sustainable Buildings

      Volume: 111 Pages: 1-6

    • DOI

      10.1051/e3sconf/201911103042

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study on energy loss and thermal environment through door open while air conditioner running2019

    • Author(s)
      Sihwan Lee
    • Journal Title

      E3S Web Conference: Sustainable Urbanization and Energy System Integration

      Volume: 111 Pages: 1-4

    • DOI

      10.1051/e3sconf/201911106035

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Study on energy loss through door open while air conditioner running in commercial store2019

    • Author(s)
      Sihwan Lee
    • Journal Title

      IOP Conference Series: Materials Science and Engineering

      Volume: 609(3) Issue: 3 Pages: 1-6

    • DOI

      10.1088/1757-899x/609/3/032069

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A field measurement on energy loss through door open while air conditioner running in a commercial store2021

    • Author(s)
      Satoko Yano, and Sihwan Lee
    • Organizer
      Roomvent 2020
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Study of air exchange rate and airflow characteristics by influence of human movement wake2021

    • Author(s)
      Motoki Kondo, and Sihwan Lee
    • Organizer
      Roomvent 2020
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 商業施設の開門冷房営業がエネルギー損失に及ぼす影響2020

    • Author(s)
      矢野智子,李時桓
    • Organizer
      日本建築学会大会学術講演梗概集
    • Related Report
      2020 Research-status Report
  • [Presentation] 人体移動が室間換気量に与える影響に関する研究2020

    • Author(s)
      近藤志樹,李時桓
    • Organizer
      日本建築学会大会学術講演梗概集
    • Related Report
      2020 Research-status Report
  • [Presentation] 人体移動が室間漏気量に与える影響および形状の違いによる検討2020

    • Author(s)
      近藤志樹,李時桓
    • Organizer
      空気調和・衛生工学会学術講演会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] 単一開口を持つ立方体モデルの周辺気流による自然換気量予測2020

    • Author(s)
      李時桓
    • Organizer
      空気調和・衛生工学会学術講演会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] 開門冷房におけるエネルギー損失に関する研究(その4)実測による漏気負荷抑制手法の検討と熱負荷計算2020

    • Author(s)
      矢野智子,李時桓
    • Organizer
      空気調和・衛生工学会学術講演会講演論文集
    • Related Report
      2020 Research-status Report
  • [Presentation] Evaluation of air exchange rate by influence of human movement wake2020

    • Author(s)
      Motoki Kondo, and Sihwan Lee
    • Organizer
      Indoor Air 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Field measurement and dynamic simulation on the energy loss through door open with air conditioner running in a commercial store2020

    • Author(s)
      Satoko Yano, and Sihwan Lee
    • Organizer
      Indoor Air 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 開門冷房におけるエネルギー損失に関する研究(その2)エアカーテンの種類による熱遮断効率2019

    • Author(s)
      李時桓
    • Organizer
      空気調和・衛生工学会学術講演会学術講演会講演論文集
    • Related Report
      2019 Research-status Report
  • [Presentation] 開門冷房におけるエネルギー損失に関する研究(その3)実測による商店内の温熱環境と熱損失特性2019

    • Author(s)
      矢野智子,李時桓,倉渕隆,林鍾衍
    • Organizer
      空気調和・衛生工学会学術講演会学術講演会講演論文集
    • Related Report
      2019 Research-status Report
  • [Presentation] Numerical study on safety factor for deflection modulus of the non-recirculating and the recirculating air curtain2019

    • Author(s)
      Sihwan Lee
    • Organizer
      Building Simulation 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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