Low airflow measurements by means of gas tracing method

8th International Research-Technical Conference on the Problems of Designing, Construction and Use of Low Energy Housing

土木建筑工程

Kisilewicz, T.^1 ; Nowak-Dzieszko, K.^1

Cracow University of Technology, Institute of Building Materials and Structures, ul. Warszawska 24, Kraków

31-348, Poland^1

关键词: Air exchanges;    Airflow measurements;    Decay methods;    Measurements of;    Multi-point methods;    Optimal measurements;    Standard procedures;    Tracing method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/415/1/012030/pdf
DOI  :  10.1088/1757-899X/415/1/012030

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

Tracer gas dilution decay method is a convenient tool for measurement of actual air exchange in building. The article presents the results of measurements of natural air exchange in the selected, airtight rooms. A two-point and multi-point method were used to collect data and calculate the results. The standard procedure for the selection of the optimal measurement time was also included. In tight spaces with low air exchange, the measurement results depend on the assumed duration of measurements. It was found that the duration of measurements of several hours and the multipoint method allow to obtain convergent results.