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首页> 外文期刊>International journal of green energy >AIR-INFILTRATION MEASUREMENTS IN BUILDINGS USING SOUND TRANSMISSION LOSS THROUGH SMALL APERTURES
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AIR-INFILTRATION MEASUREMENTS IN BUILDINGS USING SOUND TRANSMISSION LOSS THROUGH SMALL APERTURES

机译：使用小孔通过声音传递损失测量建筑物中的空气渗透率

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The objective of this investigation is to determine air infiltration in buildings using sound transmission loss (STL) through various types of holes and cracks. The method is based on the use of a sound source that radiates sound waves at a known frequency inside the building and two sound level meters, which measure sound pressure level inside and outside the building. To develop a correlation between STL and air infiltration, experiments have been performed using various types of materials. A test chamber was divided in two sub-chambers to simulate interior and exterior air conditions. Various materials, each with a small hole of varying shapes and sizes, were positioned between the two sub-chambers. A pressure difference has been generated between the sub-chambers and air infiltration in each experiment was measured through each hole. Filed testing in several buildings has been performed to determine air infiltration. The results of field measurements compared with the blower door readings show that the proposed method has promise to be used to measure air infiltration in buildings.
机译：这项研究的目的是利用通过各种类型的孔和裂缝的声传输损耗（STL）来确定建筑物中的空气渗透情况。该方法基于使用声源和两个声级计的声源，声波以建筑物内的已知频率辐射声波，声级计测量建筑物内外的声压级。为了建立STL和空气渗透之间的相关性，已经使用各种类型的材料进行了实验。将测试室分为两个子室，以模拟内部和外部空气条件。在两个子腔室之间放置了各种材料，每种材料都有一个形状和大小各异的小孔。在子腔室之间已产生压力差，并且在每个实验中通过每个孔测量了空气渗透。已在几座建筑物中进行了现场测试，以确定空气的渗透情况。现场测量结果与风机门读数相比表明，该方法有望用于测量建筑物中的空气渗透。

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