A Study on the Effectiveness of SCD Seeding Fog Dissipation Mechanism Using LiDAR Sensor

Fog interferes with traffic flow and causes major accidents. In foggy conditions, traffic accident death rates are higher than in other weather conditions. Research on fog dissipation technology is needed to reduce the incidence of accidents caused by fog. There are various artificial methods to rem...

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Bibliographic Details
Published in:Fluids (Basel) 2023-06, Vol.8 (6), p.185
Main Authors: Park, Min-Gyun, Kang, Hyun-Su, Kim, Youn-Jea
Format: Article
Language:English
Subjects:
Airports
Cameras
Carbon dioxide
Clouds
Cold
Dissipation
Distance measurement
Dry ice
Environmental aspects
Experiments
Fatalities
Fog
fog dissipation
Humidity
Jet engines
Lasers
Lidar
LiDAR sensor
Optical radar
Radiation
Sensors
solid carbon dioxide (SCD)
Traffic accidents
Traffic accidents & safety
Traffic flow
Weather
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Summary:Fog interferes with traffic flow and causes major accidents. In foggy conditions, traffic accident death rates are higher than in other weather conditions. Research on fog dissipation technology is needed to reduce the incidence of accidents caused by fog. There are various artificial methods to remove fog. In this study, two methods of natural dissipation by gravity sedimentation and a solid carbon dioxide seeding fog dissipation mechanism were compared and analyzed in cold fog conditions. Solid carbon dioxide was selected as the fog dissipation particle. In this experiment, solid carbon dioxide seeding with three different values of weight (500 g, 1000 g, and 1500 g) was considered. This is because fog particles can be supercooled and fog can be removed. A light detection and ranging (LiDAR) sensor were used to quantitatively check the effect of improving visibility when solid carbon dioxide was seeded in the fog. The LiDAR sensor detects the surrounding environment through distance measurements by emitting lasers and processing the laser responses. A camera was used to visually observe the phenomenon occurring inside the calorimetric chamber. As a result, the fog dissipation mechanism using solid carbon dioxide seeding under cold fog conditions was proven to be effective in improving the visible distance compared with natural dissipation.
ISSN:2311-5521
2311-5521
DOI:10.3390/fluids8060185