Concentration of Cane Sugar Solution. A single-effect evaporator is being used to concentrate a feed of 10 000 lbm/h of a cane sugar solution at 80F and containing a sugar content of 15 Brix (degrees Brix is wt % sugar) to 30 Brix for use in a food process. Saturated steam at 240F is available for heating. The vapor space in the evaporator will be at 1 atm abs pressure. The overall U = 350 btu/h ft2 F and the heat capacity of the feed is cp = 0.91 btu/lbm. F The boiling-point rise can be estimated from Example 8.5-1. The heat of solution can be considered negligible and neglected. Calculate the area required for the evaporator and the amount of steam used per hour. . A12: Ans. Boiling-point rise 2.0F (1.1C), A = 667 ft (62.0 m) H