Indoor thermal environment of Mongolian traditional mobile housing used as urban habitat in winter
Indoor thermal environment of Mongolian traditional mobile housing used as urban habitat in winter
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蒙古传统活动房屋冬季城市栖息地的室内热环境
DOI：
10.1016/j.jobe.2021.103927
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发表时间：
2022
影响因子：
6.4
通讯作者：
Munkhbayar Buyan
中科院分区：
文献类型：
--
作者：
Uelun Ujin Purev;Aya Hagishima;Munkhbayar Buyan
蒙古游牧社会使用的传统移动的帐篷目前用于城市居住，城市居民使用的煤炉排放的污染物是乌兰巴托冬季空气污染的主要原因之一。因此，用低排放的供暖设备取代煤炉是一个紧迫的问题。尽管如此，自游牧时期以来，燃料炉一直被使用，以前的一项研究报告说，城市居民普遍对煤炉加热的室内环境感到满意。在此背景下，本研究旨在通过现场测量，表征燃煤炉供暖蒙古包内热环境的时空特征，为当前炉子顺利转向电供暖提供参考。测量结果表明，室内温度日间、户间波动差异较大，主要受采暖炉功率不稳定的影响，而采暖炉功率不稳定又受住户燃煤方式的影响。室内空气温度偶尔会导致超出舒适温度范围的异常值。相比之下，由于炉灶的直接辐射，操作温度在超过70%的时间内高于ASHRAE舒适范围的下限，这突出表明，在游牧移动的住宅的条件下，当前的炉灶设计和燃料炉灶的使用对于在冬季实现舒适的室内环境是合理的，这需要隔热性能差的轻质外壳。
Gers, which are traditional mobile tents used by nomadic society of Mongolia, are currently used for urban habitats, and pollutants emitted from coal stoves used in urbangersare one of the major causes of air pollution in Ulaanbaatar in winter. Replacing coal stoves with low-emission heating devices ingerhousing is, therefore, a pressing issue. Nevertheless, fuel stoves have been used ingersfor generation since the nomadic period, and a previous study reported that urbangerresidents were generally satisfied with the indoor environment heated by a coal stove. Against this background, the present study aimed—based on field measurements—to characterize the spatial and temporal characteristic of the thermal environment within gers heated by coal stoves, to provide insights for smoothly shifting the current stoves to electric heating. The measurement results showed diverse daily fluctuations of indoor temperature among days and households dominated by the unstable heating power of stoves, which is influenced by the occupants' style of coal input. The indoor air temperature occasionally resulted in outliers beyond the comfort temperature range. By contrast, the operative temperature was above the lower limit of the ASHRAE comfort range for over 70% of the time owing to the direct radiation of stoves, highlighting that the current design ofgersand the use of fuel stove are reasonable to achieve a comfortable indoor environment in winter under the conditions of nomadic mobile dwellings, which necessitates a lightweight envelope with poor insulation performance.