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Question 3: A dryer must take up 400 lbm/hr of HO. Entering fresh air at barometric pressure, 70 F and 50% relative humidity is mixed
Question 3: A dryer must take up 400 lbm/hr of HO. Entering fresh air at barometric pressure, 70 F and 50% relative humidity is mixed with recycle air (R) at 140 F and enters the dryer, leaving at 140 F and 80% relative humidity (P). What is the volume of R (at its conditions) per volume of P (at its conditions)? The barometer reads 14.62 psi, and P and R each are at 0.15 psig gauge pressure. The dew point of the air after the heater is 95 F at 0.15 psig. [18] Heater HO 400 lb/hr OT Dryer R
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