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首页> 外文会议>環境システム研究論文発表会 >EVALUATING HEAT-ISLAND MITIGATION AND ENERGY SAVING MEASURES USING A COUPLED URBAN-CANOPY AND BUILDING-ENERGY MODEL
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EVALUATING HEAT-ISLAND MITIGATION AND ENERGY SAVING MEASURES USING A COUPLED URBAN-CANOPY AND BUILDING-ENERGY MODEL

机译：使用耦合城市冠层和建筑 - 能源模型评估热岛缓解和节能措施

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We investigated the cooling and energy-saving effects of measures for mitigating urban heat islands, such as urban greening and high-albedo painting. Several other typical energy conservation techniques for buildings, such as reducing internal heat sources, installing photovoltaic panels, and increasing insulation, were also assessed. To simulate the city-block-scale interaction between outdoor air and cooling energy demands, we used a coupled urban-canopy and building-energy model. This model includes a vertical one-dimensional local atmospheric model and a box-type building model for calculating air-conditioning loads, and predicts the heat loads of buildings and the effects of air conditioning operation on energy consumption and air temperature changes. An approximately 20 X 20-km region that included metropolitan Tokyo was selected as the target study area, and divided into 31 districts north to south and 33 districts east to west with a grid size of 600 X 600 m. Three prototypical districts were extracted from the study area: an office-building district, a fire-resistant residential district, and a wooden-housing residential district. To simulate typical summer days, we selected 8-10 August 2002, a period of continuous clear weather over the study region. The calculation results for the prototypical districts showed that urban greening and increasing the urban albedo in residential areas can decrease air temperatures by 0.6 and 0.3 deg C, respectively, and reduce energy consumption by 300 and 150 kJ/m~2/day (per floor area), respectively. A large scale assessment was performed on a 20 X 20-km region in central Tokyo to quantify the effects of various heat island mitigation strategies.
机译：我们调查了冷却和缓解城市热岛，如城市绿化和高反射率的绘画措施的节能效果。其他几个典型的节能技术的建筑物，如减少内部热源，安装光伏板，并增加隔热，也进行了评估。为了模拟室外空气和冷却的能量需求之间的城市街区尺度相互作用，我们使用了耦合城市篷和建筑物能量模型。该模型包括一个垂直一维本地大气模型和一个箱式建筑模型，用于计算空调负荷，并预测建筑物的热负荷和空气调节运转的能源消耗和空气温度变化的影响。所包含东京都的约20×20公里的区域被选择为目标的研究区域，并分成31个区南北33区东到西与600×600微米的栅格尺寸。办公室建设区，耐火住宅小区，和木质房屋居住区：三个典型地区进行了研究区提取。为了模拟典型的夏日里，我们选择8-10 2002年8月，在研究区域一段连续晴朗的天气中。为原型区的计算结果表明，城市绿化和增加在居民区城市反照率可以通过0.6和0.3摄氏度，降低空气温度分别与300和150千焦耳/米〜2 /天（降低每地板能耗区域）中。在东京市中心的一个20×20公里的区域内进行一个大规模的评估，以量化的各种热岛的缓解策略的影响。

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