Numerical investigation on urban warming and energy consumption in Tohoku region based on whole year analysis of urban climate

基于全年城市气候分析的东北地区城市变暖与​​能源消耗数值调查

• 批准号: 15360306
• 负责人: MOCHIDA Akashi
• 金额: $ 9.66万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15360306/
• 关键词: Heat Island Effects; Whole Year Analysis of Urban Climate; Energy Consumption; Heat Balance MAP; Cooling Load MAP; Regional Characteristics; Sea Breeze; Cross Ventilation; CFD解析; 冷房負荷; 市街地温熱空気環境実測; 局地気象; エネルギー消費

This research project is composed of two parts. In the first part, the simulation system for the whole year analysis of urban climate was developed. The accuracy of numerical results was examined by comparing its results with measured data. Next, the regional characteristics of urban climate inside Sendai was investigated based on the analysis of heat balance in the atmospheric part in urban space using the numerical results of the summer and winter seasons, and "heat balance map" that illustrated the areas where air temperature was decreased by sea breeze in summer and a seasonal wind from north-west in winter. Based on this map, the appropriate countermeasures against heat island effects were selected according to the regional characteristics of each region inside Sendai.In the latter part of this study, a new simulation method, which combined numerical analysis of mesoscale climate, CFD method for microclimate around building, radiation computations, and heating load calculation using the transient energy system simulation tool "TRNSYS", was developed to evaluate the spatial distributions of passive cooling effects due to the cross-ventilation. In three regions inside Sendai (Nenoshiroishi (inland area), central part of Sendai, Arai (coastal area), cooling loads for residential buildings were quantified. Next, "cooling load maps" that illustrated the detailed spatial distribution of cooling load inside Sendai and the reduction of cooling load by cross-ventilation were drawn. It was found that the effect of cross-ventilation was significantly large in the coastal areas of Sendai. The cooling load could be reduced by 50%〜90% by appropriately utilizing the passive cooling effects of cross-ventilation.

该研究项目由两个部分组成。在第一部分中，开发了整个城市气候分析的模拟系统。通过将其结果与测量数据进行比较，可以检查数值结果的准确性。接下来，根据夏季和冬季的数值结果，研究了仙台内城市气候的区域特征，以及城市空间中大气部分的热平衡，以及“热量平衡图”，这些结果说明了夏季海风和冬季季节性风的季节性风温改善的区域。 Based on this map, the appropriate countermeasures against heat island effects were selected according to the regional characteristics of each region inside Sendai.In the latter part of this study, a new simulation method, which combined numerical analysis of mesoscale climate, CFD method for microclimate around building, radiation computations, and heating load calculation using the transient energy system simulation tool "TRNSYS", was developed to evaluate the spatial distributions of passive cooling effects due到交叉通风。在仙台（nenoshiroishi（内陆地区），阿莱（Arai）（沿海地区）的中部地区）内的三个区域中，量化了居民建筑物的冷却负荷。接下来，“冷却负载图”，即“冷却负载图”，说明了Sendai内部冷却负荷的详细空间分布，并且在沿海地区减少了很大的交叉，这是显着的。通过适当利用交叉通风的被动冷却效果，可以将冷却负载减少50％至90％。

项目成果

海風が卓越する夏季晴天日における規模の異なる3つの太平洋沿岸都市、東京、仙台、原町の中心部の大気部熱収支構造の比較-気候数値解析に基づく都市気候の地域特性の定量化(その1)-

东京、仙台、原町三个太平洋沿岸不同规模城市中心区在海风盛行的晴朗夏日的大气热平衡结构比较——基于数值气候分析的城市气候区域特征量化（第1部分） ) )-

• 发表时间: 2005
• 期刊: 日本建築学会環境系論文集 595
• 作者: 佐々木澄;Akashi Mochida;Kiyoshi Sasaki;佐々木 澄;Akashi Mochida;Akashi Mochida;宮内郷史;佐々木澄;Satoshi Miyauchi;Kiyoshi Sasaki;Akashi Mochida;Akashi Mochida;佐々木 澄
• 通讯作者: 佐々木 澄

仙台市中心部の植栽計画のための街路空間の熱・空気環境に関する検討(その1)〜(その3)

仙台市中心街道空间种植计划的热环境和空气环境研究（第1部分）至（第3部分）

• 发表时间: 2004
• 期刊: 日本建築学会大会学術講演梗概集(北海道) D-1
• 作者: 渡辺浩文;池澤紀幸;岩田達明
• 通讯作者: 岩田達明

佐々木澄, 持田灯, 渡辺浩文, 吉野博他: "実測・数値解析に基づく仙台市の都市環境気候図作成(その1)〜(その9)"日本建築学会大会学術講演梗概集(東海). D-1. 661-678 (2003)

Sumi Sasaki、Akira Mochida、Hirofumi Watanabe、Hiroshi Yoshino 等：“基于实测和数值分析创建仙台市城市环境气候图（第 1 部分）-（第 9 部分）” 学术讲座论文集日本建筑学会会议（东海）。661-678（2003）。

PROPOSAL OF "HEAT BALANCE MAP" BASED ON EVALUATION OF HEAT BALANCE IN EACH REGION INSIDE A CITY IN TYPICAL SUMMER DAYS -Evaluation of regional characteristics of heat island based on climatic analysis (Par2)-

基于典型夏季城市内各区域热平衡评价的“热平衡图”提案 -基于气候分析的热岛区域特征评价（Par2）-

• 发表时间: 2006
• 期刊: Journal of Environmental Engineering, Architectural Institute of Japan 602
• 作者: 佐々木澄;Akashi Mochida;Kiyoshi Sasaki
• 通讯作者: Kiyoshi Sasaki

COMPARISON OF HEAT BALANCE MECHANISMS IN TYPICAL SUMMER DAYS AT CENTRAL PARTS OF THREE PACIFIC CITIES, TOKYO, SENDAI, AND HARAMACHI-(part1) Evaluation of regional characteristics of heat island based on climatic analysis-

东京、仙台、原町三个太平洋城市中部夏季典型热平衡机制比较-(part1)基于气候分析的热岛区域特征评价-

• 发表时间: 2005
• 期刊: Journal of Environmental Engineering, Architectural Institute of Japan 595
• 作者: 佐々木澄;Akashi Mochida;Kiyoshi Sasaki;佐々木 澄;Akashi Mochida;Akashi Mochida;宮内郷史;佐々木澄;Satoshi Miyauchi;Kiyoshi Sasaki
• 通讯作者: Kiyoshi Sasaki