Improving the Performance of the Air Conditioning Unit in Different Locations of a City Bus and Lightening the Air Ducts
Technical Paper
2022-01-5044
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Event:
Automotive Technical Papers
Language:
English
Abstract
The focus of this study is to validate vehicle test results of the air
conditioning (AC) unit in a city bus and perform a comparative computational
fluid dynamics (CFD) analysis on homogenizing the cabin air distribution in
different AC unit locations on the rooftop. To validate CFD practical results, a
vehicle test was performed outdoor during the AC unit works. Obtained test
results based on airflow rate inside AC unit and also measured velocity values
on the front cabin of air duct were validated without completely modeling the
whole AC unit and indoor cabin via CFD. With this simplified method, it is
thought that this approach can give an idea for new prototype air duct designs
in relevant industries. Another advantage to this approach is that it avoids
high mesh density near the radial fans (blowers) placed on the AC unit. Foam
placed in air ducts as insulation and air blockage material is also optimized
for air distribution in the indoor cabin. In conclusion, several foams and air
duct designs are reviewed, and a design that represents the most appropriate
homogenous air distribution and lightweight air duct is proposed.
Authors
Citation
Özcan, O., Demirtaş, S., Yıldız, A., and Coşkun, A., "Improving the Performance of the Air Conditioning Unit in Different Locations of a City Bus and Lightening the Air Ducts," SAE Technical Paper 2022-01-5044, 2022, https://doi.org/10.4271/2022-01-5044.Also In
References
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