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A sugar company in KwaZulu-Natal produces a juice in backward triple effect evaporator from 6% to 43%. It can be assumed that the boiling point

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A sugar company in KwaZulu-Natal produces a juice in backward triple effect evaporator from 6% to 43%. It can be assumed that the boiling point rise (BPR) can be neglected. The feed enters the third effect at 26C at a rate of 24000kg/h. Dry saturated steam enters the calandria of the first effect at 205kPa while the third effect is operated at 13KPa. The heat capacity of the solutions is given by Cp=4.22.2(kJ/kgK) where x is the mass fraction of salt. The heat of solution can also be negligible. The overall heat transfer coefficients are: U1=1.2;U2=2.0 and U3=3.0kW/m2K. The heat transfer surfaces are the same in all three effects. : Using only one iteration, determine the following: 3.1. The overall balance and the sugar balance. 3.2. The temperature in each effect. 3.3. The heat capacities

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