期刊名称：IOP Conference Series: Earth and Environmental Science
印刷版ISSN：1755-1307
电子版ISSN：1755-1315
出版年度：2018
卷号：170
期号：3
页码：032055
DOI：10.1088/1755-1315/170/3/032055
语种：English
出版社：IOP Publishing
摘要：Under the background of greenhouse gas emission reduction and environmental protection verification becoming a hot spot of social concern, the basic principle and method of filed flowrate measuring technology of stack gas for stationary emission source are introduced in this paper. The key of stack gas flowrate measurement based on velocity-area method is to measure the area of the cross section and the average velocity in the cross section. This paper introduces tow measuring methods of S-pitot tube and multi-path ultrasonic flowmeter. And then, an application of the two measuring methods of stack gas flowrate in a coal-fired power plant in Henan is given. At last, the measuring results of the two methods were analysed and compared, and it was considered that either the S-pitot tube or multi-path ultrasonic flowmeter has a wide application prospect in gas flowrate measurement.
