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Quantification and intercomparison of the positive feedback interaction between urban climate and air-conditioning energy demand in international megacities

Research Project

Project/Area Number 16H04441
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Civil and environmental engineering
Research InstitutionMeisei University

Principal Investigator

Kikegawa Yukihiro  明星大学, 理工学部, 教授 (20409519)

Co-Investigator(Kenkyū-buntansha) 井原 智彦  東京大学, 大学院新領域創成科学研究科, 准教授 (30392591)
大橋 唯太  岡山理科大学, 生物地球学部, 准教授 (80388917)
高根 雄也  国立研究開発法人産業技術総合研究所, エネルギー・環境領域, 主任研究員 (80711952)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥11,830,000 (Direct Cost: ¥9,100,000、Indirect Cost: ¥2,730,000)
Fiscal Year 2018: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2017: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2016: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Keywords気候変動 / 都市気候 / 空調エネルギー需要 / ポジティブフィードバック / 相互作用感度 / 国際比較
Outline of Final Research Achievements

Urban anthropogenic heat (AH) could catalyze the positive feedback (PFB) interaction between urban climate and energy demand for air conditioning. This vicious feedback is classical, but unquantified. Hence this study focused on the PFB and made one of the first trials to quantify its intensity. The increase in urban energy consumption and its consequent growth in AH on weekdays compared with weekends could cause air temperature rising and induce additional increase in energy demand for air-conditioning. Such PFB was analyzed for summer Osaka based on observations and its intensity was estimated to be about 10%. The estimate was successfully reproduced by the original urban climate numerical model named WRF-CM-BEM. The validated WRF-CM-BEM was then applied to future climate projections for Osaka and Jakarta, and the PFB impacts on the future air temperature were analyzed for both cities. The result suggested that the PFB induced 3 to 4 % of future air temperature increases there.

Academic Significance and Societal Importance of the Research Achievements

“都市の気温上昇→冷房需要増→人工排熱増→更なる高温化”、この悪循環は都市ヒートアイランド現象の代名詞とも言える古典的問題であるが、その具体的な影響は未解明であった。本研究の学術的意義は、独自の都市気候数値モデルを用いて上述の悪循環の影響を世界で初めて定量化した点にある。結果として、悪循環は、夏季大阪の平日の冷房電力消費量を約10%増加させ、大阪とジャカルタの2070年代までの将来気温上昇量の内、その3~4%を引き起すものと推計された。以上により、都市の温暖化やその影響の予測において従来考慮されてこなかった悪循環の位置づけを解明した事で、今後の温暖化対策への貢献も期待できる。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (27 results)

All 2019 2018 2017 2016 Other

All Int'l Joint Research (7 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (15 results) (of which Int'l Joint Research: 9 results)

  • [Int'l Joint Research] インド工科大学デリー校(インド)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] バンドン工科大学(インドネシア)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] レディング大学(英国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] レディング大学(英国)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] バンドン工科大学(インドネシア)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] レディング大学(英国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] バンドン工科大学(インドネシア)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Sensitivity of electricity consumption to air temperature, air humidity and solar radiation at the city-block scale in Osaka, Japan2019

    • Author(s)
      Hashimoto Y, Ohashi Y, Nabeshima M, Shigeta Y, Kikegawa Y, Ihara T
    • Journal Title

      Sustainable Cities and Society

      Volume: 45 Pages: 38-47

    • DOI

      10.1016/j.scs.2018.10.004

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reduction Effect of DALY of Sleep Disturbance and Fatigue by Air Conditioner -Evaluation in Jakarta, Indonesia-2019

    • Author(s)
      桑山忠弘, 山口和貴, 岡田和樹, 亀卦川幸浩, 神田学, Alvin Christopher Galangc Varquez, Nisrina Setyo Darmanto, Prihadi Setyo Darmanto, 井原智彦
    • Journal Title

      Journal of Life Cycle Assessment, Japan

      Volume: 15 Issue: 1 Pages: 2-9

    • DOI

      10.3370/lca.15.2

    • NAID

      130007557112

    • ISSN
      1880-2761, 1881-0519
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] VALIDATION OF A NUMERICAL URBAN WEATHER FORECASTING MODEL COUPLED WITH A BUILDING ENERGY MODEL IN TERMS OF THE REPRODUCIBILITY OF SOLAR IRRADIANCE AND ELECTRICITY DEMAND2017

    • Author(s)
      亀卦川幸浩, 山川洋平, 德竹衿也, 大橋唯太, 高根雄也, 井原智彦, 鍋島美奈子
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research)

      Volume: 73 Issue: 2 Pages: 57-69

    • DOI

      10.2208/jscejer.73.57

    • NAID

      130006904125

    • ISSN
      2185-6648
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A climatological validation of urban air temperature and electricity demand simulated by a regional climate model coupled with an urban canopy model and a building energy model in an Asian mega city2017

    • Author(s)
      Takane, Y., Y. Kikegawa, M. Hara, T. Ihara, Y. Ohashi, S. A. Adachi, H. Kondo, K. Yamaguchi and N. Kaneyasu
    • Journal Title

      International Journal of Climatology

      Volume: in press Issue: S1 Pages: 1035-1052

    • DOI

      10.1002/joc.5056

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] ANALYSIS AND DISCUSSION OF SENSITIVITIES OF ELECTRICITY CONSUMPTION TO OUTDOOR AIR TEMPERATURE AND OUTDOOR AIR HUMIDITY IN BUSINESS AND RESIDENTIAL DISTRICTS IN CITY-BLOCK-SCALE2016

    • Author(s)
      橋本侑樹, 鍋島美奈子, 重田祥範, 亀卦川幸浩, 井原智彦
    • Journal Title

      Journal of Environmental Engineering (Transactions of AIJ)

      Volume: 81 Issue: 727 Pages: 827-834

    • DOI

      10.3130/aije.81.827

    • NAID

      130005266479

    • ISSN
      1348-0685, 1881-817X
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Presentation] Observational and computational quantification of the positive feedback interaction between urban climate and electricity consumption in Osaka2018

    • Author(s)
      Kikegawa Y, Nakajima K, Ohashi Y, Hashimoto Y, Ihara T
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A climatological validation of urban air temperature and electricity demand simulated by a regional climate model coupled with an urban canopy model and a building energy model in an Asian megacity2018

    • Author(s)
      Takane Y, Kikegawa Y, Hara M, Ihara T, Ohashi Y, Adachi S A, Kondo H, Yamaguchi K, Kaneyasu N
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Urban warming and air-conditioning use in a future climate: Evidence of a positive feedback2018

    • Author(s)
      Takane, Y., Y. Kikegawa, M. Hara, and C. S. B. Grimmond
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Development and verification of urban canopy - building energy coupled model considered multiple building types2018

    • Author(s)
      Nishimoto T, Tashiro T, Hashimoto Y, Yamaguchi K, Kikegawa Y, Ohashi Y, Ihara T
    • Organizer
      10th International Conference on Urban Climate
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 夏季大阪市域で実測された都市気温と電力需要の相互作用感度の再現シミュレーション2018

    • Author(s)
      中島一紗, 橋本侑樹, 大橋唯太, 井原智彦, 亀卦川幸浩
    • Organizer
      日本ヒートアイランド学会第13回全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A climatological validation of urban air temperature and electricity demand simulated by a regional climate model coupled with an urban canopy model and a building energy model in an Asian mega city2017

    • Author(s)
      Takane Y, Kikegawa Y, Hara M, Ihara T, Ohashi Y, Adachi S A, Kondo H, Yamaguchi K, Kaneyasu N
    • Organizer
      14th International Conference on Atmospheric Sciences and Applications to Air Quality
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Observational quantification of the positive feedback interaction between urban climate and summer electricity demand in a Japanese major city Osaka2017

    • Author(s)
      Kikegawa Y, Ohashi Y, Hashimoto Y, Ihara T
    • Organizer
      4th International Conference on Energy & Meteorology
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 住宅における空調室と非空調室の室内熱環境に関する実測調査 ―2016年千葉県・東京都の事例―2017

    • Author(s)
      橋本侑樹, 塩野大和, 亀卦川幸浩, 井原智彦
    • Organizer
      日本ヒートアイランド学会第12回全国大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 夏季大阪市域を対象とした観測にもづく都市気温と電力需要の相互作用感度の推計2017

    • Author(s)
      岡田和樹, 橋本侑樹, 大橋唯太, 井原智彦, 亀卦川幸浩
    • Organizer
      日本ヒートアイランド学会第12回全国大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] ジャカルタを対象としたWRFの都市キャノピースキームに関する比較実験2017

    • Author(s)
      岡田和樹, 亀卦川幸浩, 井原智彦, Alvin C.G. Varquez, 稲垣厚至, 神田学
    • Organizer
      日本気象学会2017年度秋季大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 領域気候・建物エネルギー連成数値モデルによる都市気候と電力需要の再現2016

    • Author(s)
      髙根雄也, 亀卦川幸浩, 原政之, 井原智彦, 大橋唯太, 足立幸穂, 近藤裕昭, 山口和貴, 兼保直樹
    • Organizer
      日本気象学会2016年度秋季大会
    • Place of Presentation
      名古屋大学
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
  • [Presentation] Evaluation for heat island mitigating potential of improving energy efficiency in urban areas - e-mobility and air source heat pump water heaters2016

    • Author(s)
      Yamaguchi K, Ihara T, Kikegawa Y, Genchi Y
    • Organizer
      23rd World Energy Congress
    • Place of Presentation
      Istanbul Congress Center
    • Year and Date
      2016-10-09
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 日射と電力需要の再現性に着目した都市気象・建物エネルギー連成数値モデルの検証2016

    • Author(s)
      徳竹衿也, 亀卦川幸浩, 山川洋平, 引地裕基, 大橋唯太, 高根雄也, 井原智彦, 鍋島美奈子
    • Organizer
      日本ヒートアイランド学会第11回全国大会
    • Place of Presentation
      広島工業大学
    • Year and Date
      2016-07-08
    • Related Report
      2016 Annual Research Report
  • [Presentation] Evaluating the effectiveness of countermeasures against urban heat island in Jakarta2016

    • Author(s)
      Maeda K, Yamaguchi K, Darmanto N S, Varquez A C G, Kikegawa Y, Kanda M, Ihara T
    • Organizer
      4th International Conference on Countermeasures to Urban Heat Island (IC2UHI)
    • Place of Presentation
      National University of Singapore
    • Year and Date
      2016-05-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simulations of summer energy consumption considering insolation by urban heat-island countermeasures and energy-saving measures in Osaka city, Japan2016

    • Author(s)
      Hashimoto Y, Ihara T, Ohashi Y, Nabeshima M, Shigeta Y, Kikegawa Y
    • Organizer
      4th International Conference on Countermeasures to Urban Heat Island (IC2UHI)
    • Place of Presentation
      National University of Singapore
    • Year and Date
      2016-05-30
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2022-06-10  

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