112. Concentration of Cane Sugar Solution. A single-effect evaporator is being used to concentrate a feed of 10000lbm/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 1atm abs pressure. The overall U=350btu/hft2F and the heat capacity of the feed is cp=0.91btu/lbmF. 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. Ans. Boiling-point rise =2.0F(1.1C),A=667ft2(62.0m2)