...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building and Environment >Simultaneous environmental parameter monitoring and human subject survey regarding outdoor thermal comfort and its modelling
【24h】

Simultaneous environmental parameter monitoring and human subject survey regarding outdoor thermal comfort and its modelling

机译：同时进行室外热舒适度及其模型的环境参数监控和人体调查

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The growth of cities intensifies the urban heat island effect by obstructing and weakening the incoming wind and thus deteriorates thermal comfort in the pedestrian level. The elevated building design is believed to be able to create some localized comfort spots at precinct scale, but no researches on pedestrians' thermal perceptions in the area underneath an elevated building (UEB) have been reported. In this study, simultaneous on-site meteorological measurements and questionnaire surveys of 1107 human subjects were conducted in a university campus in Hong Kong. Three outdoor thermal comfort models, PET, UTCI and UC-Berkeley model, were compared. The survey results indicate that the UEB area is significantly (alpha = 0.05) more comfortable in hot weather without extra discomfort in cold weather. All three models outputs correlate well with the subjects' mean thermal sensation votes in linear regression (R-2 approximate to 0.9). Yet, shifts in neutral indices (6.2 K, 5.8 K and 1.1 respectively for PET, UCTI and UC-Berkeley model) appeared when comparing the correlation results separately for the UEB areas and open areas, indicating that the impacts of solar radiation and wind or the lack of them on pedestrian's thermal comfort perceptions have not been well predicted by the three models. These investigations, on the one hand, characterize the benefits that elevated building designs have on the pedestrian-level microclimate and provide references and inspirations for urban planners to enhance pedestrian thermal comfort by altering building designs; on the other hand, indicate the need to refine the thermal comfort models for better outdoor thermal comfort assessment. (C) 2017 Elsevier Ltd. All rights reserved.
机译：城市的发展通过阻碍和减弱传入的风，加剧了城市的热岛效应，从而降低了行人水平的热舒适度。人们认为高架建筑物的设计能够在区域范围内创建一些局部的舒适点，但是尚未有关于高架建筑物（UEB）下方区域行人热感的研究的报道。在这项研究中，同时在香港的一个大学校园内对1107名人类受试者进行了现场气象测量和问卷调查。比较了三种室外热舒适模型，即PET，UTCI和UC-Berkeley模型。调查结果表明，UEB区域在炎热天气下明显更舒适（alpha = 0.05），而在寒冷天气下不会感到额外不适。所有三个模型的输出与线性回归（R-2近似为0.9）时受试者的平均热感觉投票密切相关。但是，当分别比较UEB区域和空旷区域的相关结果时，出现中性指数的变化（PET，UCTI和UC-Berkeley模型分别为6.2 K，5.8 K和1.1），这表明太阳辐射和风或这三个模型未能很好地预测出行人对热舒适感的缺乏。这些调查一方面体现了高架建筑设计对步行者微气候的好处，并为城市规划者通过改变建筑设计提高步行者的热舒适性提供了参考和启发。另一方面，指出需要改进热舒适模型以更好地评估室外热舒适度。 （C）2017 Elsevier Ltd.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号