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Modelling the relative importance of the urban heat island and the thermal quality of dwellings for overheating in London

机译:模拟伦敦城市热岛的相对重要性和住宅过热的热质量

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摘要

The aim of this study was to assess variations in indoor temperatures in London dwellings during periods of hot weather, and the degree to which those dwelling-to-dwelling variations are explained by the thermal characteristics of the dwelling and location within the urban heat island (UHI). Indoor temperatures during periods of hot weather were modelled using the EnergyPlus simulation programme, taking as input data the building characteristics of IS notional dwelling archetypes broadly representative of the London housing stock, and assessed under warm future weather conditions at two locations within London. Data on dwelling types and characteristics were determined from Geographic Information System databases, national level domestic building surveys and other sources. External weather data were derived from the London Site-Specific Air Temperature model under the UK Climate Impacts Programme (UKCIP) 2002 2050s Medium-High emissions scenario. There was substantial variation in indoor temperatures across built forms. The thermal quality of a dwelling has an appreciably greater effect on indoor temperatures during the 'hot' period studied than the UHI itself. The effects of built form and other dwelling characteristics appear to be more important determinants of variation in high indoor temperatures than the location of a dwelling within London's UHI. This observation suggests that policies aimed at protection against the adverse effects of high summer temperatures may need to focus more on dwelling design and construction than on the amelioration of the UHI.
机译:这项研究的目的是评估炎热天气期间伦敦住宅的室内温度变化,并且这些住宅之间的变化程度由住宅的热特性和城市热岛内的位置来解释( UHI)。使用EnergyPlus模拟程序对炎热天气期间的室内温度进行建模,以IS名义住宅原型的建筑特征(大致代表伦敦房屋存量)作为输入数据,并在未来温暖的天气条件下在伦敦的两个地点进行评估。住房类型和特征的数据是从地理信息系统数据库,国家一级的房屋建筑调查和其他来源确定的。外部天气数据来自英国气候影响计划(UKCIP)2002 2050年代中高排放情景下的伦敦特定地点气温模型。各种建筑形式的室内温度存在很大差异。与UHI本身相比,住宅的热质量在研究的“炎热”时期对室内温度的影响明显更大。与伦敦UHI内住宅的位置相比,建筑形式和其他住宅特征的影响似乎是决定室内高温的更重要的决定因素。该观察结果表明,旨在防止夏季高温不利影响的政策可能需要更多地关注住宅设计和建造,而不是改善UHI。

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  • 来源
    《Building and Environment》 |2012年第11期|p.223-238|共16页
  • 作者单位

    UCL Energy Institute, University College London, Central House, 14 Upper Wobum Place, WCW ONN London, UK;

    Bartlett School of Graduate Studies, University College London, Central House, 14 Upper Wobum Place, WC1H ONN London, UK;

    UCL Energy Institute, University College London, Central House, 14 Upper Wobum Place, WCW ONN London, UK;

    UCL Energy Institute, University College London, Central House, 14 Upper Wobum Place, WCW ONN London, UK;

    London School of Hygiene and Tropical Medicine, 15-17 Tavistock Place, WC1H 9SH London, UK;

    Mechanical Engineering, School of Engineering and Design, Brunei University, UBS 3PH Uxbridge, UK;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    indoor temperature; dwellings; overheating; urban heat island; health; building fabric;

    机译:室内温度住宅过热;城市热岛;健康;建筑面料;

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