编竹夹泥墙民居室内热环境与围护结构热特性分析
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TU241.5;TU111.3

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国家重点研发计划资助项目(2016YFC0700302)。


Research on indoor thermal environment and enclosure’s thermal characteristics of dwellings with muddy wall circled by bamboos
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    摘要:

    编竹夹泥墙民居是巴渝地区传统民居的重要类型。为了解编竹夹泥墙民居夏季室内热环境特点,在重庆松溉古镇选择了一典型户进行实地测量分析,并以30℃为适应性舒适温度上限进行评价。结果显示,民居室内全天低于30℃的累积频率为70%,但热环境昼夜表现差异较大:日间较差,室内温度低于30℃的累积频率仅为46%;而夜间较好,低于30℃的累积频率达到90%以上。分析其围护结构热特性,编竹夹泥墙和冷摊瓦屋面都较轻薄,隔热性能和热稳定性都较差,热性能仅达到《农村居住建筑节能设计标准》的56%和14%,但轻薄的围护结构具有良好的散热性,可有效提高建筑的夜间降温能力。吊脚楼形式令室内热环境更易受室外环境的影响,但与良好的微气候相结合,有利于调节室内热环境,有效解决湿热地区非空调的建筑夜间舒适性问题,突出反映了该类民居与当地湿热气候相适应的特征。

    Abstract:

    The bamboo-clay-wall dwellings are an important type of traditional dwellings in the Bayu region. To analyse indoor thermal environment of bamboo-clay-wall dwelling, a typical house in Songji Town, Chongqing was chosen to be measured. Then, 30 ℃ is used as the upper limit of adaptive temperature to evaluate the indoor thermal environment of the measured house. The results show that indoor temperature was below 30 ℃ in 70% of time a day, and the performance is different between day and night. In the daytime, about 46% of the time indoor temperature is lower than 30 ℃. At night, more than 90% of the time indoor temperature is lower than 30 ℃. The thermal insulation and thermal stability of the envelopes are poor, the thermal resistance of roof and wall only reached 14% and 56% to the regulations mentioned in Design Standard for Energy efficiency of Rural Residential Buildings. But this makes the envelopes have good dissipation, and effectively improve the building’s cooling capacity at night. Stilted floors make the indoor thermal environment more susceptible to the influence of the outdoor environment, but combined with a good micro-climate, it is beneficial to adjust the indoor thermal environment, especially to effectively solve the problem of building comfort at night in hot and humid areas without air conditioning. It reflects the characteristic that this kind of dwelling house adapts to the local hot and humid climate.

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徐亚男,杨真静.编竹夹泥墙民居室内热环境与围护结构热特性分析[J].重庆大学学报,2021,44(3):22-30.

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  • 收稿日期:2020-07-08
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  • 在线发布日期: 2021-03-31
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