Y1

At steady-state, lemonade flows into an evaporator where water is removed to form lemonade concentrate. To improve flavor, 15% of the lemonade feed stream bypasses the evaporator and is added directly to the stream leaving the evaporator. The concentrate exits the evaporator at a rate of 116.5 kg/hr (dry solids content = 22.5% by mass). After the bypass stream is added to this concentrate stream, the final product stream has a flow rate of 174.25 kg/hr and a dry solids content of 17.7% by mass. What is the mass fraction of dry solids in the lemonade entering the evaporator? What is the mass flow rate of the evaporated water leaving the evaporator?