Abstract
Solid fuel combustion accompanies particulate matter production. These particles negatively affect human health, so ways of capturing them are being sought. Local heat sources are a major producer, with this article focusing on the flue gas tract of this heat source. A baffle has been placed in the flue gas tract, the position of which is changing. It is observed the impact of particulate matter flowing through this baffle with a focus on the settling areas. Particles are trapped in the settling areas and do not flow further through the flue gas tract. Particulate matter flowing was investigated by the visualization method called Particle image velocimetry (PIV). Visualizing the flow allows to get a figure of the flow and a dynamic record of the state of the object. The result of the visualization is the assessment of the monitored flow, the determination of its trajectory and streamlines.
Highlights
Particle image velocimetry (PIV) is a method of measuring speeds throughout a twodimensional field
This article deals with the observation of the baffle position located in the flue gas tract of a local heat source
The baffle has a function of capturing particulate matter from the solid fuel combustion process
Summary
Particle image velocimetry (PIV) is a method of measuring speeds throughout a twodimensional field (possibly even a three-dimensional one). When measured in a two-dimensional space, a high-speed camera is used to scan the area at certain set time intervals. From these images, the drift of individual particles is assessed using software. The known time between laser pulses makes it easy to calculate the speed of the particles, which is considered the speed of the fluid [1]. The continuous profile is illuminated using a laser (two flashes), where each flash takes the surface to be scanned by the camera to produce two timed images. Correlation methods are subsequently applied to these interrogation areas [2, 3, 4]
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