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International Journal of Automotive Technology > Volume 12(5); 2011 > Article
International Journal of Automotive Technology 2011;12(5): 705-712.
OPTIMIZATION OF DRYING PERFORMANCE CONSIDERING DRIVING CONDITIONS
Wonki Park1, Sang-Don Mun1, Hi-Koan Lee2, Gyun Eui Yang1
1CHONBUK NATIONAL UNIVERSITY
2CAMTIC
ABSTRACT
Compressed air can be used as an energy source for brake systems in medium-heavy and heavy-duty commercial vehicles. The moisture in compressed air, which is due to high temperature and humidity, can be eliminated by using an air dryer. In this paper, drying performance data for a cartridge were obtained and used to develop a drying performance program, to predict the moisture and relative humidity in the air tanks of vehicles. The on-load time, off-load time, air flow, duty cycle, humidity and dew point temperature were calculated according to air consumption. The validity of the program was verified, and it was shown to be able to predict humidity changes in the air tank. The air tank capacity was increased from 100 to 130 to reduce the duty cycle. Therefore, the regeneration rate decreased from 18% to 15%, but the dew point depression temperature (
Key Words: Air compressor, Air dryer, Duty cycle, Regeneration ratio, On-load time, Off-load time, Relative humidity, Dew point
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