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Gate Preparation Academy Assignment Number : 23 Question Number: 01 Without changing the temperature of the penicillin , the moisture content in penicillin is to be Decreased during final stages of the industrial production of penicillin. Air enters a dryer having a wet-bulb temperature of 18C and a dry-bulb temperature of 38C. The moist air flows over the penicillin at 1 atm. at the rate of 4500 m/hr and the air exits at 38C. The penicillin feed enters at 38C with a moisture content of 80% and exits at 50%. 1. What is the enthalpy change in kilojoules per hour of the air from inlet to exit? 2. How much water is evaporated from the penicillin per hour? 3. How many kilograms of the entering penicillin are dried per hour? Assume that the properties of the wet penicillin are those of the water content of the mixture