Meta-analysis of indoor temperatures in new-build housing
Meta-analysis of indoor temperatures in new-build housing
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DOI：
10.1080/09613218.2016.1226610
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发表时间：
2017-02
影响因子：
3.9
通讯作者：
Gráinne McGill;T. Sharpe;L. Robertson;Rajat Gupta;Ian Mawditt
中科院分区：
文献类型：
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作者：
Gráinne McGill;T. Sharpe;L. Robertson;Rajat Gupta;Ian Mawditt
摘要尽管人们越来越担心经济过热，但缺乏证据表明这一问题的严重性，特别是在当代英国的住房问题上。本文介绍了在选定的低能耗住宅室内温度的荟萃分析的结果。对19个示范项目（2012- 2014年）60个住宅每隔5分钟记录的温度数据进行了整理和分析，以调查过热的普遍性。调查结果表明，夏季温度很高，27%的客厅在8月份超过28°C。根据英国建筑服务工程师学会（CIBSE）的标准，每年有5%的居住时间超过25°C，57%的卧室和75%的客厅被归类为过热。总体而言，30%的客厅超过了自适应舒适阈值，即> 3%的占用时间ΔT ≥ 1 K。结果表明，通风和室内温度之间的基本关系。在机械通风热回收（MVHR）住宅中观察到的较高的最低和平均夏季温度（p < 0.05）和较低的温度范围（p < 0.001）表明需要更加注意在密闭住宅中提供足够的夏季通风。结果表明，在示范住房过热的高患病率，表明需要更大的努力，以确保有效实施的战略，以尽量减少过热和改善低能耗家庭的通风。
ABSTRACT Despite growing concerns about overheating, a lack of evidence exists on the scale of the problem, particularly in contemporary UK housing. This paper presents the results of a meta-analysis of indoor temperatures in selected low-energy housing. Temperature data recorded at five-minute intervals in 60 dwellings across 19 demonstration projects (2012–14) were collated and analysed to investigate the prevalence of overheating. Findings evidence high summertime temperatures, with 27% of living rooms exceeding 28°C during August. Based on the Chartered Institution of Building Services Engineers (CIBSE) threshold of 5% annual occupied hours > 25°C, 57% of bedrooms and 75% of living rooms were classified as having overheated. Overall, 30% of living rooms exceeded the adaptive comfort threshold of > 3% occupied hours ΔT ≥ 1 K. The results suggest a fundamental relationship between ventilation and indoor temperatures. The higher minimum and average summertime temperatures observed in mechanical ventilation with heat recovery (MVHR) homes (p < 0.05) and lower temperature range (p < 0.001) suggest the need for greater attention to adequate summertime ventilation provision in airtight homes. The results demonstrate a high prevalence of overheating in exemplary housing, indicating the need for greater efforts to ensure the effective implementation of strategies to minimize overheating and improve ventilation in low-energy homes.