12권 5호 705-712 2011 [IJAT]
| 제목 | OPTIMIZATION OF DRYING PERFORMANCE CONSIDERING DRIVING CONDITIONS |
|---|---|
| 분야 | Manufacturing |
| 언어 | English |
| 저자 | Wonki Park(CHONBUK NATIONAL UNIVERSITY), Sang-Don Mun(Chonbuk national university), Hi-Koan Lee(CAMTIC), Gyun Eui Yang(Chonbuk National University) |
| Key Words | Air compressor, Air dryer, Duty cycle, Regeneration ratio, On-load time, Off-load time, Relative humidity, Dew point |
| 초록 |
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 (ΔT) remained above 30oC. The duty cycle decreased from 50% to 43%, and the total operation time and power consumption of the air compressor were reduced. In conclusion, fuel savings were obtained by changing the parameters to optimize the system. |
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