检索结果-南通市图书馆

Springtime Monitoring of Passive Cool Roofs in Subtropical Climate

Journal of Civil Engineering and Architecture 2014年第11期8卷 1364-1370页

作者： Carla Femanda Barbosa Teixeira lucila chebel labaki LACAF (Laboratory of Environmental Comfort and Applied Pl~sics) University of Campinas S6o Paulo 49170-000 Brazil DAC (Department of Architecture and Construction) University of Campinas Sao Paulo 13083-852 Brazil

Passive strategies for acclimatization of buildings have been studied by several authors in many countries, especially the evaporative and radiant cooling techniques. Fiber cement tiles are very common in popular constructions due to their low cost. However, they have over twice of the value thermal transmittance indicated to this bioclimatic zone according to Brazilian guidelines. The objective is to present an alternative to reduce high temperatures on fiber cement tiles. In this paper, the monitoring of passive cooling of roofing during the spring season in a city with subtropical climate is described. Single and combined reflective and evaporative cooling systems were studied in different environmental conditions. Internal surface temperatures of tiles were monitored together with weather variables. Results show a decrease of about 6 oC, 9 oC, 10 oC and 11 oC as compared to the original tiles according to environment conditions and the combined passive cooling techniques. These results allow for the conclusion that the use of passive cooling techniques opens up new possibilities to attenuate the internal surface temperatures of tiles and to consequently decrease the roofing solar heat gain into buildings, thus, providing less air cooling energy consumption.

关键词：亚热带气候气候监测蒸发冷却系统内表面温度屋顶冷却技术纤维水泥传热系数

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Natural Ventilation by Air Captors and Extractors Sheds in Hospitals in Brazil： Wind Tunnel Measurements

引用

Journal of Civil Engineering and Architecture 2014年第10期8卷 1293-1303页

作者： Marieli Azoia Lukiantchuki Rosana Caram Edson Matsumoto lucila chebel labaki Architecture and Urban Planning Institute of Sao Carlos University of S6o Paul S6o Paulo 13566-590 Brazil Department of Architecture and Construction University of Campinas Sao Paulo 13083-889 Brazil

Natural ventilation is an efficient design strategy for the passive cooling of buildings, especially in tropical countries such as Brazil. Among the ventilation strategies, sheds can be highlighted. These structures consist of roof openings that work as air captors or extractors depending on their location in relation to the prevailing wind directions. The hospitals of the Sarah Network, designed by the Brazilian architect Joao Filgueiras Lima, Lele, are worldwide known for using these elements to improve natural ventilation. This paper analyses the natural ventilation performance of sheds for air collecting and extracting in two Sarah hospitals located in the cities of Salvador and Rio de Janeiro. In each building, the sheds were analyzed for air extracting and collecting. The analyses were carried out by reduced physical models in an atmospheric boundary layer wind tunnel. The wind velocity was measured at external and internal points of the buildings, using hot-wire anemometers. The results show that the wards in Rio de Janeiro hospital are 17% more ventilated than the ones in the Salvador hospital. However, this difference occurs not only because of the collecting sheds but also because of set of openings and the configuration of the covering in hospitals in Rio de Janeiro.

关键词：医院病房自然通风提取器风洞测量巴西里约热内卢大气边界层风洞航空

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Post-occupancy Evaluation with Emphasis on Thermal Comfort： A Case Study in Public Squares

引用

Journal of Civil Engineering and Architecture 2015年第12期9卷 1483-1495页

作者： Carlos A. C. Niemeyer lucila C. labaki Federal Institute of Education Science and Technology Sao Paulo 01109-010 Brazil Scholl of Civil Engineering and Architecture of Campinas University Campinas 13083-889 Sao Paulo Brazil

The article presents a case study about thermal comfort in two public squares located in the coastal region of southeastern Brazil, within a post-occupational assessment context where it was sought to estimate the thermal sensation and perception of the users generating systematized knowledge about the built environment. The objective is to instruct future interventions for improvement in the living condition where it is particularly important for the success of the activities predicted there. Surveys on thermal comfort along with goers of the squares were held on three consecutive days in April 2013 and February 2014 with microclimate monitoring of the places adopting the predictive PET (physiological equivalent temperature) index calculated based on the bioclimatic model Rayman. The obtained data set generated valuable information about the pattern of thermal comfort allowing understanding the analytical correlations between PET index, climate variables and the perception of comfort. The article seeks to contribute towards the recognition of bioclimatic specificities in the project process aimed to the improvement of the environmental and social performance of public squares and aspects that are relevant to the urban planners.

关键词：公共广场热舒适性后评价建成环境生物特征沿海地区干预措施气候模型

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：