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首页> 外文期刊>Building Services Engineering Research & Technology >Using localised weather files to assess overheating in naturally ventilated offices within London's urban heat island
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Using localised weather files to assess overheating in naturally ventilated offices within London's urban heat island

机译：使用本地化的天气文件评估伦敦市区热岛内自然通风办公室的过热情况

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摘要

Urban environments typically experience increased average air temperatures compared to surrounding rural areas - a phenomenon referred to as the Urban Heat Island (UHI). The impact of the UHI on comfort in naturally ventilated buildings is the main focus of this article. The overheating risk in urban buildings is likely to be exacerbated in the future as a result of the combined effect of the UHI and climate change. In the design of such buildings in London, the usual current practice is to view the use of one generic weather file as being adequate to represent external temperatures. However, the work reported here demonstrates that there is a considerable difference between the overheating performance of a standard building at different sites within London. This implies, for example, that a building may wrongly pass or fail criteria used to demonstrate compliance with building regulations as a result of an inappropriate generic weather file being used. The work thus has important policy implications. Practical application: The Greater London Authority has recently developed, with the Chartered Institute of Building Services Engineers, guidance for developers to address the risk of overheating in buildings via the provision of weather files for London relating to three zones. While such an initiative is welcomed, it may be that a weather file tailored to the building location would be preferable. Of course, this would add further complexity to the process and a view would have to be taken as the viability of such an approach. The work presented in this article, however, suggests that serious consideration should be given to the use of tailored weather data for regulatory purposes.
机译：与周围的农村地区相比，城市环境通常会遇到平均气温升高的现象-这种现象被称为城市热岛（UHI）。 UHI对自然通风建筑物的舒适性的影响是本文的重点。由于UHI和气候变化的共同作用，未来城市建筑中的过热风险可能会加剧。在伦敦设计此类建筑物时，目前通常的做法是将一个通用天气文件的使用视为足以代表外部温度。但是，此处报告的工作表明，伦敦内部不同地点的标准建筑物的过热性能之间存在相当大的差异。例如，这意味着，由于使用了不合适的通用天气文件，建筑物可能错误地通过或失败了用于证明符合建筑物法规的标准。因此，这项工作具有重要的政策含义。实际应用：大伦敦管理局最近与英国建筑服务工程师学会一起，为开发商提供了指南，以通过为伦敦提供有关三个区域的天气文件来解决建筑物过热的风险。尽管欢迎这样的倡议，但可能更适合于建筑物位置的气象文件。当然，这将增加该过程的复杂性，并且必须将一种观点视为这种方法的可行性。但是，本文中提出的工作表明，应认真考虑将定制的天气数据用于监管目的。

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    C Demanuele; A Mavrogianni; M Davies; M Kolokotroni; I Rajapaksha;

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    The Bartlett School of Graduate Studies, University College London, London, UK;

    The Bartlett School of Graduate Studies, University College London, London, UK,UCL Energy Institute, Central House, 14 Upper Woburn Place, London,WC1H 0NN;

    The Bartlett School of Graduate Studies, University College London, London, UK;

    Mechanical Engineering Department, Brunei University, Uxbridge, UK;

    The Bartlett School of Graduate Studies, University College London, London, UK;

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