A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China
A New Correlation for Single-Sided Natural Ventilation Rate Based on Full-Scale Experimental Study in Mogao Grottoes, Dunhuang, China
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DOI：
10.3390/buildings13051298
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发表时间：
2023-05
期刊：
影响因子：
3.8
通讯作者：
Junjie Zhang;Z. Yan;Zhengmo Zhang;Wenbei Bi;S. Yao
中科院分区：
文献类型：
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作者：
Junjie Zhang;Z. Yan;Zhengmo Zhang;Wenbei Bi;S. Yao
虽然对单面建筑的自然通风的研究在不断深入，但对莫高窟这种特殊的形制和结构的自然通风的研究相对较少。本文的目的是建立一个计算此类石窟自然通风量的关联式。通过对两个典型洞穴的野外实验，测量了洞穴的气象参数和自然通风量，验证了所提出的关系式的有效性。结果表明，该关联式在预测溶洞自然通风量时具有较好的可靠性和稳定性。首先，新的相关性具有16.35%的小平均偏差。7个关联式预测的自然通风量的平均偏差最低为17.85%，最高为59.39%，与本文提出的关联式相比有很大的差距。第二，所提出的相关性的输出中的最大偏差在每种情况之间仅为7.70%。最后，将计算结果与328洞实测值进行了比较，结果表明，该关系式同样适用于大体积洞穴。该关联式的建立为洞穴自然通风的研究提供了理论支持和科学的预防性保护方法。
Although research on the natural ventilation of single-sided buildings is progressing, research on the natural ventilation of the Mogao Grottoes, which have special shapes and structures, is relatively limited. The purpose of this paper is to develop a correlation for calculating the natural ventilation rates of such grottoes. Field experiments were carried out on two typical caves to measure their meteorological parameters and natural ventilation rates to verify the validity of the proposed correlation. The results show that our correlation has good reliability and stability when predicting the natural ventilation rates of the caves. First, the new correlation has a small average deviation of 16.35%. The average deviations in the natural ventilation rates predicted by seven established correlations are as low as 17.85% and as high as 59.39%, revealing a large gap compared with the correlation proposed herein. Second, the maximum deviation in the outputs of the proposed correlation is only 7.70% between each case. Finally, a comparison between the calculated results and the values measured in Cave 328 shows that the correlation is also suitable for large-volume caves. The developed correlation provides theoretical support and a scientific method for preventive protection and a quantitative analysis method for the study of natural ventilation in caves.