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Development of analytical tools of urban heat environment for design of environmentally sound city

开发城市热环境分析工具以促进环境友好型城市设计

基本信息

批准号：
10555188
负责人：
HANAKI Keisuke
金额：
$ 7.23万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1998
资助国家：
日本
起止时间：
1998 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-10555188/
关键词：
Heat island Heat environment Environmentally sound city Anthropogenic heat discharge Energy

项目摘要

This project was aimed at development of system of analytical tools to evaluate the urban heat environment for design of environmentally sound city. Data from urban geographic information system (GIS) was combined with the analysis of anthropogenic heat discharge from buildings, and the obtained three-dimensional distribution of heat discharge was used for meso-scale analysis or urban heat environment.Original GIS polygon data of all buildings in Tokyo was reformed to numerical data suitable for urban heat analysis. Building air-conditioning model (DOE-2) was rearranged to provide heat discharge value. The model was applied to typical buildings because heat discharge depends on purpose of building use and building size. The obtained heat discharge value per floor area was combined with building data to obtain spatial distribution of heat discharge throughout Tokyo area.Several scenarios for discharging the anthropogenic heat such as discharging all heat from roof, from ground, or discharge as latent heat were set up. These scenarios provide various heat discharge distribution in three dimensional scale. Meso-scale meteorological simulation was conducted to which anthropogenic heat discharge was input.Potential of utilization of treated sewage for cooling water of air-conditioning was estimated using GIS.Combination of direct use as cooling water and indirect use as supplement water for cooling tower is effective way of use of treated sewage from the viewpoint of spatial distribution of heat discharge.

本项目旨在开发城市热环境评价分析工具系统，为环境友好型城市的设计提供依据。将城市地理信息系统（GIS）数据与建筑人为热排放分析相结合，得到的三维热排放分布用于城市热环境的中尺度分析。将东京所有建筑的原始GIS多边形数据转化为适合城市热分析的数值数据。建筑空调模型（DOE-2）重新布置以提供放热值。该模型适用于典型建筑，因为热排放取决于建筑用途和建筑规模。将得到的每层面积的放热值与建筑数据相结合，得到整个东京地区的放热空间分布。设置了几种排放人为热的方案，如从屋顶、从地面排放全部热量或作为潜热排放。这些场景在三维尺度上提供了不同的放热分布。以人为热排放为输入，进行了中尺度气象模拟。利用GIS对处理后的污水作为空调冷却水的利用潜力进行了估算。从热排放的空间分布来看，直接作为冷却水与间接作为冷却塔补充水相结合是处理后污水的有效利用方式。