ISSN Online: 2377-424X
International Heat Transfer Conference 12
Investigation of slug flow measurement using the electromagnetic flowmeter developed
Abstract
In order to investigate the characteristics of an electromagnetic flowmeter in two-phase slug flow, an
electromagnetic flowmeter with 240Hz triangular ACexcitation was designed and manufactured. The signals and noise from the flowmeter were obtained, and analyzed in comparison with the observations with a high speed CCD camera.
The uncertainty of the flowmeter under single-phase flow was ±2.24% in real-time. For two-phase slug flow, electromagnetic flowmeter provided real-time simultaneous measurements of the mean film velocity around Taylor bubble and the relative location and the length of the bubble. Besides, it is an easier and cheaper method for measuring mean film velocity than others such as photochromic dye activation method or particle image velocimetry.
The uncertainty of the flowmeter under single-phase flow was ±2.24% in real-time. For two-phase slug flow, electromagnetic flowmeter provided real-time simultaneous measurements of the mean film velocity around Taylor bubble and the relative location and the length of the bubble. Besides, it is an easier and cheaper method for measuring mean film velocity than others such as photochromic dye activation method or particle image velocimetry.