• Search Research Projects
  • Search Researchers
  1. Back to previous page

Studies on methods of reducing thermal pollutionin the urvan area

Research Project

Project/Area Number10680548
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 環境保全
Research InstitutionKYUSHU UNIVERSITY

Principal Investigator

SUZUKI Yoshinori  Kyushu Univ. Fac.Agreculture, Professor, 農学部, 教授 (70081495)

Co-Investigator(Kenkyū-buntansha) 鈴木 義則  九州大学, 農学部, 教授 (70081495)
Project Period (FY) 1998 – 1999
Project Status Completed(Fiscal Year 1999)
Budget Amount *help
¥900,000 (Direct Cost : ¥900,000)
Fiscal Year 1999 : ¥900,000 (Direct Cost : ¥900,000)
Keywordsthermal pollution / evaporative cooling / phase change / latent heat / water / urban area / heat island / water retentive ceramic tile
Research Abstract

As the artificial environment, the cities are on the opposite side of the nature. Air temperatures in the big city such as Fukuoka and Tokyo have been raised about 2ィイD1゜ィエD1cC in these 100 years. This is the sign of global warming at the last half of 21 century. Those were caused by the increasing energy consumption associated with condensation of human population and the structure of city covered with concrete and asphalt. The later is the replacement of vegetation to concrete, which brought decreasing of evaportranspiration.
The purpose of the study is to develop the methods of recovering of minus condition brought by structural changes. I conducted experimental study on the characteristics of ability evaporative cooling using water retentive ceramic tile.
The comparisons of surface temperatures among water-retentive ceramic tiles rice plants and the original concrete roof surface were examined on fare summer days. Here, the ceramic tiles were laid horizontally and vertically on the r … More oof of 6 storied building. The temperature difference between those wet ceramics and the original concrete roof surface were about 20ィイD1゜ィエD1cC at noon. Temperatures of wet ceramics and rice plants were nearly equal each other, but their daily time course changed slightly depending on the time, if it was fare, or the amount of solar radiation. Heat balance and radiation balance was analyzed. The wet ceramics could consume most of net radiation by changing into latent heat.
Next, I discussed on the folding type of ceramic roof of warehouse, which can extend surface evaporative area comparing with flat type roof. The surface temperatures outer side and inner side were much decreased than the original steel roof, and direction of heat radiation from human body inside the room was reversed at noon. The inner thermal pollution was greatly improved.
At the same time, the amount of evaporation of flat and slopes facing south and north are 0.86, 0.74 and 0.46 mm/h respectively. Those values are easily converted into latent heat energy.
From the points of the characteristics of heat radiation, wet ceramic roof acts as heat radiation absorber, while the original roof does as heat radiator. Thus, wet ceramics can avoid thermal stress on human body. As the effect of decreasing temperature of flat ceramics is enough, so the folding type is not always needed for open wide area. We can achieve a lot of decreasing of thermal pollution in urban area, if we can apply this method to the city. Less

Report

(3results)
  • 1999 Annual Research Report   Final Research Report Summary
  • 1998 Annual Research Report

Research Products

(18results)

All Other

All Publications

  • [Publications] 鈴木義則: "水の相変化と気候緩和"水文・水資源学会誌. 11(6). 563-564 (1998)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 尾崎哲二: "保水性セラミックタイルの熱環境改善に関する研究"水工学論文集. 43. 239-244 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 鈴木義則: "保水性セラミックの屋根面敷設による夏季の内外表面温度の改善"九州の農業気象. II-8. 65-68 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 鈴木義則: "屋根面敷設保水性セラミックスの熱負荷低減効果"農気・生環・施設三学会1999合同学会講演要旨. 1999. 490-491 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 鈴木義則: "都心にある植栽ビルの暑熱緩和について"九州の農業気象. II-8. 69-70 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 鈴木義則: "Experimental study on the thermal relaxation effect of water-retaintetive ceramic tiles."Intl. Symp. On Human Biometeorlogy. 1999. 169-174 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] T. Ozaki, Y. Suzuki: "Study on the contribution of water retentive ceramic tile to the reduction of environment heat accumulation"Hydro-engineering. 43. 239-244 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Suzuki, H. Yoshikoshi: "Improvement of surface temperature inner and outside of a warehouse by setting water retentive ceramic tiles on the roof in summer."Agricultural Meteorology of Kyushu. II-8. 65-68 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Suzuki, H. Yoshikoshi: "Reducing effect of heat load by water retentive ceramics set on roof."Abstract of 1999 annual joint meeting of the Societies of Agricultural Meteorology, Environmental Control in Biology and Agricultural Structures.. 490-491 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Suzuki, H. Yoshikoshi: "On temperature reducing effect of a building with plants located at the center of city to thermal environment in summer."Agricultural Meteorology of Kyushu. II-8. 65-68 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] Y. Suzuki, Tur Muhammed: "Experimental study on the thermal relaxation effect of water-retentive ceramic tiles."Int'l Symposium On Human Biometeorology. 169-174 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1999 Final Research Report Summary
  • [Publications] 尾崎哲二: "保水性セラミックタイルの熱環境改善に関する研究"水工学論文集. 43. 239-244 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鈴木義則: "保水性セラミックの屋根面敷設による夏季の内外表面温度の改善"九州の農業気象. II-8. 65-68 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鈴木義則: "屋根面敷設保水性セラミックの熱負荷低減効果"農気・生還・施設三学会1999合同大会講演要旨. 1999. 490-491 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鈴木義則: "都心に有る植栽ビルの暑熱緩和について"九州の農業気象. II-8. 69-70 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鈴木義則: "Experimental study on the thermal relaxation effect of water-retentive ceramic tyles.(2) Surface pavement experiment"Intl.Symp. on Human Biometeorology. 1999. 169-174 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 鈴木義則: "水の相変化と気候緩和" 水文・水資源学会誌. 11(6). 563-564 (1998)

    • Related Report
      1998 Annual Research Report
  • [Publications] Y.Suzuki, Tur Muhamed: "Experimental study on the thermal relaxation effect of water-retaintive ceramic tiles" International Journal of Bio-meterology. 42(2)印刷中. (1999)

    • Related Report
      1998 Annual Research Report

URL :

Published : 1999-04-01   Modified : 2016-04-21  

Information FAQ News Terms of Use

Powered by NII kakenhi