Question

Many cereals are made with high moisture content so that the cereal can be formed into various shapes before it is dried. A cereal product containing 58% by mass is produced at the rate of 1000. kg/h. How much water must be evaporated per hour if the final product contains only 22% water?

Answer 1

461.54 kg/h

Step-by-step explanation:

First lets calculate the mass flow of the dry product:

Md=1000 kg/h*(1-0.58) = 420 kg/h

The mass flow of the moist final product is then:

Mm= 420 kg/h /(1-0.22) = 538.46 kg/h

The water to be evaporated is then the difference between the feed and the product.

W= 1000 kg/h - 538.46 kg/h = 461.54 kg/h