...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Building research & information >Exposure duration in overheating assessments: a retrofit modelling study
【24h】

Exposure duration in overheating assessments: a retrofit modelling study

机译：过热评估中的暴露时间：改造模型研究

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

A new indicator of overheating risk is introduced that more comprehensively represents heat stress and the way thermal environment is experienced. This indicator is compared with the industry standard overheating assessment approach (CIBSE TM52). This is demonstrated using an energy retrofit simulation case study of a typical London, UK terraced dwelling under different climate scenarios. Overheating was evaluated first according to TM52, then via an assessment of continuously overheated intervals (COIs) that account for the duration where adaptive limits are continuously exceeded. Results for the case study show that, first, extent of overheating can vary greatly based on climate uncertainties. Second, insulation retrofit only contributes to substantial overheating when the space lacks proper ventilation or protection from solar radiation. Nevertheless, overheating cannot be avoided completely under future climate scenarios even with appropriate passive cooling. More importantly, the results show that overheated hours tend to occur consecutively. This implies that violations of TM52 criterion 1 (which currently applies only at the seasonal scale) can occur at the monthly/weekly resolutions. This buried' information can be revealed via the COI approach to more comprehensively capture how an overheating situation unfolds in a manner more relevant to heat stress and occupants' thermal experience.
机译：引入了一种新的过热风险指标，它可以更全面地表示热应力和体验热环境的方式。将该指标与行业标准过热评估方法（CIBSE TM52）进行比较。这是通过在不同气候情景下对英国伦敦典型的梯田住宅进行能源改造模拟案例研究证明的。首先根据TM52评估过热，然后通过评估持续过热间隔（COI）来评估，该持续时间占连续超出自适应限值的持续时间。案例研究的结果表明，首先，基于气候不确定性，过热程度可能会有很大差异。其次，仅当空间缺乏适当的通风或没有阳光辐射防护时，隔热改造才可导致相当大的过热。然而，即使采用适当的被动冷却，在未来的气候情况下也无法完全避免过热。更重要的是，结果表明，过热时间倾向于连续发生。这意味着违反TM52标准1（目前仅适用于季节性标准）的情况可能会在每月/每周的分辨率下发生。可以通过COI方法来揭示这些隐藏的信息，以更全面地捕获过热情况如何以与热应力和乘员的热体验更相关的方式发生。

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