Question

A wet solid containing 60% water by weight is to be dried to a water content of 9%. For each kg of dry solid 53.2 kg of dry air is passed. The air leaving the drier has humidity of 0.05. Fresh air is supplied at a humidity of 0.015. Determine the fraction of air recirculated

Answer 1

Answer:

A wet solid containing 60% water by weight is to be dried to a water content of 9%. For each kg of dry solid 53.2 kg of dry air is passed. The air leaving the drier has humidity of 0.05. Fresh air is supplied at a humidity of 0.015. Determine the fraction of air recirculated