市街地空間における表面の温度および熱流性状に関する実験的研究

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Surface temperature and surface heat fluxes of conduction and radiation were measured in an urban cavity of the rectangular type in all daylong in hot summer. The cavity is enclosed with a street and both walls of buildings ; the street is oriented alomost exactly east-west ; the width of the street is 16m ; the height of both buildings on the north side and the south side is 17m. The measurement of the heat flux of radiation was carried out on solar radiation and long wave radiation using the ERF Detector, which was able to measure simultaneously solar radiation and long wave radiation. The heat flux of conduction was measured by heat flow detector on which the same colored plastic tape as the surface was slicked. The solar reflectance of the tape was decided using the ERF Detector. Effect of solar radiation on the surface temperature and the surface heat fluxes was very strong. The surface temperature of the northern part of the street was the highest to 48℃, the under part of the wall of the northern building was next highest to 43℃. The heat absorbing solar radaition incident to the surface was transfered inside wall by conduction and to the cavity by convection and long wave radiation. The heat dissipation by long wave radiation was higher in the upper part of the wall than in the under part. Convection heat transfer coefficient based on heat fluxes measurement held a linear correlation with the wind velocity at the roof of the building.
社団法人日本建築学会の論文
1986-06-30

市街地空間における表面の温度および熱流性状に関する実験的研究

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