Long-term building thermal performance of enclosed large-span swimming stadiums with retractable membrane ceilings
Long-term building thermal performance of enclosed large-span swimming stadiums with retractable membrane ceilings
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DOI：
10.1016/j.enbuild.2019.109363
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发表时间：
2020-01
影响因子：
6.7
通讯作者：
Jianhui Hu;K. Kawaguchi;Junbin Ma
中科院分区：
文献类型：
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作者：
Jianhui Hu;K. Kawaguchi;Junbin Ma
封闭式大跨度游泳馆的建筑性能与结构性能、使用性能和能耗有关。针对建筑物的复杂性和多功能性，提出了一种可伸缩的薄膜吊顶，以保证安全性能和提高能源性能。大跨度游泳馆的空间和时间依赖性表明，现场测试是评估建筑热性能的可行方法。在这项研究中，进行了长期实验，以测量温度值。对影响大跨度游泳馆建筑热工性能的几个主要因素进行了统计分析，得出大跨度游泳馆建筑热工性能主要取决于太阳辐射、空调和可伸缩膜顶棚。通过对三个时段的平均温度进行单独和组合分析，证明了膜式顶棚对游泳场馆具有明显的增温效果。为了提出适合工程应用的温度范围，采用基于统计分析的方法来确定置信区间，这是评估长期建筑热性能的可靠指标。从膜式顶棚和空调的置信区间（0.77-1.03 °C和0.37-1.27 °C）中得到的一个有用的发现是，被动和主动方式对室内热环境是有益的。因此，一个切实有效的建议是，利用膜天花板，以取代传统的重型天花板的游泳馆，可以实现结构安全和节能。
Building performance of enclosed large-span swimming stadiums is related to structural behavior, serviceability and energy demands. To ensure safety performance and enhance energy performance, a retractable membrane ceiling is proposed in relation to building complexity and multi-functions. Spatial- and time- dependent characteristics of large-span swimming stadiums suggest that the field measurement is a feasible way to assess building thermal performance. In this study, long-term experiments are carried out to measure temperature values. The statistical analysis to obtain stable performance is conducted with respect to several essential factors.Building thermal performance of large-span swimming stadiums mainly depends on solar irradiance, air conditioning and retractable membrane ceiling. Average temperatures for three selected periods in terms of individual and combined analysis demonstrate that using membrane ceiling can provide temperature enhancement effects for swimming stadiums. To propose suitable temperature ranges for engineering applications, an approach on the basis of statistical analysis is employed to determine confidence interval, which is a reliable index for evaluating long-term building thermal performance. A useful finding from confidence intervals of membrane ceilings and air conditioning (0.77–1.03 °C and 0.37–1.27 °C) is that passive and active ways are beneficial for indoor thermal environment. Therefore, one practical and effective suggestion is that the utilization of membrane ceilings to replace traditional heavy ceilings of swimming stadiums can achieve structural safety and energy saving.