Why air dryer? Compressed air is used on diesel and electric locomotives for brake system and operation of other auxiliary devices. The compression cycle of ambient air includes compression in locomotive compressor and then cooling in after cooler. During compression, pressure & temperature of ambient air increases hut its relative humidity decreases. However, absolute amount of the moisture present in the air remains same. After compression when the air is cooled in after ...
Wednesday, April 15, 2009
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